Source: UNIVERSITY OF CALIFORNIA, DAVIS submitted to NRP
SUSTAINING GROUNDWATER AND IRRIGATED AGRICULTURE IN THE SOUTHWESTERN UNITED STATES UNDER A CHANGING CLIMATE
Sponsoring Institution
National Institute of Food and Agriculture
Project Status
ACTIVE
Funding Source
AFRI COMPETITIVE GRANT
Reporting Frequency
Annual
Accession No.
1027540
Grant No.
2021-68012-35914
Cumulative Award Amt.
$10,000,000.00
Proposal No.
2021-05719
Multistate No.
(N/A)
Project Start Date
Sep 1, 2021
Project End Date
Aug 31, 2026
Grant Year
2021
Program Code
[A9201]- Sustainable Agricultural Systems
Recipient Organization
UNIVERSITY OF CALIFORNIA, DAVIS
410 MRAK HALL
DAVIS,CA 95616-8671
Performing Department
Land Air & Water Resources
Non Technical Summary
This project supports the mission of the Agricultural Experiment Station by addressing the Hatch Act area(s) of: soil and water conservation and use; sustainable agriculture.The overall goal of this project is to ensure food and nutritional security of the United States (US) by sustaining irrigated agriculture in the Southwest US under changing climate, while addressing the co-benefits for the environment and human health. Major Southwestern aquifer systems including the Central Valley aquifer of California, Central Arizona alluvial aquifer and the Lower Rio Grande basin in New Mexico are experiencing unprecedented overdraft as growers increasingly depend on groundwater because of climate change induced multi-year droughts and heat stress. This interdisciplinary project aims to alleviate groundwater overdraft and sustain irrigated agriculture in the Southwest US by developing climate change adaptation management strategies; integrated modeling, data, and decision support tools for assessing the sustainability of groundwater and irrigated agriculture; and socioeconomics tools for groundwater governance. We will also develop innovative education programs and novel extension programming to support sustainable groundwater and irrigated agricultural systems. This integrated multidisciplinary project is complex with linkages between its different components including system drivers (climate change, regulations, markets), models (geophysical, hydrology, biophysical, socioeconomics), climate change adaptation management strategies (managed aquifer recharge, soil health, desalination of brackish groundwater, water pricing), and system analysis decision support tools. Three interconnected research objectives and corresponding activities are fully integrated with education and extension objectives. By developing management practices that address groundwater sustainability, climate change adaptation management strategies, education and extension programs, this study will have a major impact on food and nutritional security of the US.
Animal Health Component
80%
Research Effort Categories
Basic
20%
Applied
80%
Developmental
(N/A)
Classification

Knowledge Area (KA)Subject of Investigation (SOI)Field of Science (FOS)Percent
1110210205020%
1120210205020%
4050210205020%
1020210205020%
1320210205020%
Knowledge Area
102 - Soil, Plant, Water, Nutrient Relationships; 112 - Watershed Protection and Management; 111 - Conservation and Efficient Use of Water; 132 - Weather and Climate; 405 - Drainage and Irrigation Systems and Facilities;

Subject Of Investigation
0210 - Water resources;

Field Of Science
2050 - Hydrology;
Goals / Objectives
Long-term Goal(s): Ensuring food and nutritional security of the United States by sustaining irrigated agriculture in the Southwestern United States (SW US) while addressing the co-benefits for the environment and human health by alleviating or slowing groundwater overdraft and water quality trends in major aquifer systems including the Central Valley aquifer of California (CA), Central Arizona (AZ) alluvial aquifer and the Lower Rio Grande basin in New Mexico (NM).Supporting Overall Objectives:1. Develop integrated modeling, data, and decision support tools for assessing the sustainability of groundwater and irrigated agriculture in the SW US2. Develop climate change adaptation management strategies for SW US irrigated agriculture3. Develop socioeconomics tools for groundwater governance and irrigated agriculture in SW US4. Develop innovative education programs to support sustainable groundwater and irrigated agricultural systems in the SW US5. Develop novel extension programming to support implementation of sustainable practices in irrigated agriculture in the SW US
Project Methods
This is a multidisciplinary CAP project. The project team includes climate scientists, plant scientists, hydrologists, soil scientists, engineers, biometeorologist, geophysicist, economists, sociologists, policymakers, extension specialists, and educators. The project is complex, and involves linkages between the different components including system drivers, models, climate change adaptation management strategies and system analysis decision support tools. The project is organized in three interconnected research objectives that are fully integrated with education and extension objectives of the study. Examples of project activities are listed below.Climate metrics relevant to irrigated agriculture and AgMAR (Agricultural Managed Aquifer Recharge) future scenarios will be calculated for three time periods (2010-2039, 2040-2069, and 2070-2099) and two representative concentration pathways (RCPs 4.5 and 8.5).We will synthesize information from published literature and from ongoing experimental studies in semi-arid climates to assess how cover crops alone or combined with other soil health practices drive soil health properties of relevance for drought resilience and AgMAR.We will integrate remote, proximal, and in-situ sensing, simulation modeling, machine learning and modern irrigation control systems to improve water management for crops grown in central Arizona, California and New Mexico.Innovative desalination and nutrient recovery processes will be studied and developed at NMSU and CSU Fresno using synthetic and actual brackish saline groundwater.Develop adaptive and targeted nutrient management that is scalable and spans leaf, to canopy; improve quantification of plant response and physiological determinants of yield; improve early and mid-season yield prediction across spatial scales to guide seasonal strategies for input management.We will use tTEM a geophysical technique capable of efficiently mapping out electrical resistivity (related to sediment type, water content, salinity, clay content) to penetration depths (estimated for the selected sites) of ~50 to 80 m with meter-scale resolution, to characterize subsurface heterogeneity.Generated maps of soil hydraulic properties from geophysical mapping will be used as input to numerical models to simulate water flow and contaminant transport in the subsurface.For the largest and economically important alluvial aquifer systems in each state (Central Valley, Pinal County, Lower Rio Grande), we will develop a decision support tool useful for assessing long-term sustainability, specifically as it relates to groundwater supplies, and nitrate and salinity.This project will use a series of Natural language processing (NLP) methods to extract information from Groundwater Sustainability Plans (GSPs) in order to assess local governance of groundwater.We will build the most comprehensive and granular dataset on drinking water quality and access to drinking water in the Central Valley.We will study water pricing in Madera GSA in CA where water use per land parcel is estimated from remotely sensed evapotranspiration of applied water (ETapp).To address workforce needs, the partner institutions will develop educational, research, and outreach opportunities. Elements of the educational and mentorship pipeline include recruitment, retainment, and engagement from all levels (e.g., High school, Undergraduate, Graduate and Junior-level faculty).Project members with experience in institutional issues will guide the integration of the physical, social and economic tools into cross-state institutional patterns, policies and management decision tools.We will develop a living curriculum for future irrigation, soil health, and groundwater recharge field clinics and extension events.We will identify, hire, and train 4-H Youth Development Educators to serve Black, Indigenous, and People of Color (BIPOC) communities at the urban-rural interface.

Progress 09/01/23 to 08/31/24

Outputs
Target Audience: Policy Makers Water Managers Growers Agricultural support professionals Industry Professionals Researchers Institutions Educators General Public Master gardeners Changes/Problems:There were no major changes in approach during year 3. All project activities are proceeding according to plan. Due to inflation and new contracts at the University of California systems, graduate students and postdocs now demand higher salaries than projected. The project is managing as of now, but we may need to request more funds in the future. What opportunities for training and professional development has the project provided?This project has provided significant training and professional development opportunities: Graduate Students: Three Ph.D. students graduated. Eight undergraduate students gained valuable research experience. Mentorship: Postdoctoral researcher Dr. Nall Moonilall received advanced training and mentored undergraduate students, earning the UC Davis Chancellor's Award for Undergraduate Mentorship. Skill Development: Graduate students honed skills in areas like automated text analysis, software development, R programming, and statistical network analysis. Career Advancement: Madeline Turland transitioned from a graduate student researcher to a faculty position at the University of Alberta. Dissemination: Graduate student Mauricio Soriano presented his remote sensing research at conferences. Workshops and Training: Workshops and training sessions were conducted for secondary teachers and university students on topics such as training modules, AI in agriculture, and digital agriculture. Technical Training: Student assistants received ongoing instruction in advanced water treatment processes, data analysis, and machine learning methods. How have the results been disseminated to communities of interest?Results have been disseminated to communities of interest through a variety of channels, including: Publications: Journal publications, books, conference papers, extension articles, and presentations. Online Resources: Websites, blogs, and social media platforms. Presentations: At conferences, workshops, and meetings. Outreach and Education: Activities such as field days, 4-H activities, and workshops. Conferences and Symposia: The project has hosted or participated in several conferences and symposia to share findings with a wider audience. Collaborations: The project has fostered collaborations with various stakeholders, including other researchers, institutions, and industry professionals. What do you plan to do during the next reporting period to accomplish the goals?The project is progressing as planned, and the team is diligently working towards achieving further significant results in the fourth year. This dedication is evident in the individual reports, where each researcher highlights ongoing data collection, analysis, and development of tools and technologies. These efforts are expected to yield additional publications, presentations, and other research outputs in the coming year. The team is committed to continuing its collaborative and innovative approach to address the challenges of sustaining groundwater and irrigated agriculture in the Southwestern United States under a changing climate.

Impacts
What was accomplished under these goals? Objective 1: Develop integrated modeling, data, and decision support tools for assessing the sustainability of groundwater and irrigated agriculture in the SW US Dahlke's team developed the AgMAR technique for replenishing groundwater aquifers by intentionally flooding agricultural fields. They enhanced the accuracy of the T-PROGS computer model and incorporated data from tTEM surveys. Shukla's group developed a SWAT model for the Mesilla Basin in the Lower Rio Grande, incorporating elevation, soil, land use, climate, and flow data. The model was evaluated against measured channel flow for accuracy. Knight's team finalized their analysis of the Highway 132 site using tTEM data to map subsurface characteristics for groundwater recharge potential. They developed a 3D model of the site's sediment composition and evaluated its suitability for recharge, comparing their findings with actual recharge experiments. Sarge Green focused on the intersection of policy, institutions, and water management in groundwater irrigated agricultural landscapes. Sharon Megdal played a key role in project leadership and collaboration, co-organizing the project symposium and interacting with the Advisory Board. She supported research on soil health and Ag-MAR. Thomas Harter and his team refined and updated the CV-NPSAT, a tool for evaluating and predicting groundwater quality in California's Central Valley. Their work included improving nitrate leaching estimates, enhancing water movement simulation, incorporating the latest groundwater model, and improving the understanding and simulation of salinity. Objective 2: Develop climate change adaptation management strategies for SW US irrigated agriculture Andre Daccache's group developed new tools to help farmers manage water resources in the Southwest US. They used satellites and machine learning to create maps of soil moisture and tested new sensors to monitor plant water needs. Cristina Lazcano's team studied how soil health practices can improve drought resilience in agriculture, reviewing over 2,500 research articles on cover cropping and other soil health practices. Diaa Eldin Elshikha focused on understanding the factors influencing almond yield and variability within almond orchards to optimize water and nutrient use. His research involved intensive data collection in two commercial almond orchards. Kosana Suvocarev's group studied how cover crops in almond orchards could improve soil health, reduce greenhouse gas emissions, and conserve water. Their initial results showed that cover crops do not increase water use in almond orchards. Isaya Kisekka and his team tackled California's water challenges by expanding the Central Valley ET Network and developing a new framework for accurate evapotranspiration estimates. Patrick Brown conducted a comprehensive study of almond tree physiology and yield in two Central Valley orchards, monitoring 128 trees in each orchard and tracking metrics like leaf health, fruit development, and water use. Pei Xu and Huiyao Wang focused on improving desalination technology for agricultural use by tackling brine management. They developed a model to simulate and optimize the performance of an EDBC, a technology that concentrates brine while producing an irrigation-suitable diluted stream. Sankha Banerjee, William Wright, Walter Mizuno, and Karl Longley collaborated to develop advanced water treatment technologies for agricultural use, focusing on recovering high-purity water and valuable nutrients from impaired water sources. Sharon Benes focused on soil salinity management in agriculture, particularly in areas where saline water is used for irrigation. Her work centered on the San Joaquin River Improvement Project (SJRIP) in California. Steven Ostoja and Lauren Parker studied how climate change affects agriculture, particularly winegrape cultivation, using modeling and data analysis techniques to assess the impacts of changing climate conditions. Objective 3: Develop socioeconomics tools for groundwater governance and irrigated agriculture in SW US David Zilberman focused on developing a "climate-smart circular bioeconomy" framework, promoting renewable resources and envisioning a broader role for agriculture. Katrina Jessoe focused on improving water resource management in the Southwestern US. Lubell and Scott's team analyzed governance structures within California's Sustainable Groundwater Management Act (SGMA) implementation. They developed a method for extracting network data from policy documents to analyze groundwater management plans, revealing inconsistencies in how local plans address state priorities. Objective 4: Develop innovative education programs to support sustainable groundwater and irrigated agricultural systems in the SW US Shannon Norris-Parish focused on developing educational resources for high school students to enhance their understanding of water resources, groundwater, irrigation, and climate change impacts. Objective 5: Develop novel extension programming to support implementation of sustainable practices in irrigated agriculture in the SW US Debankur Sanyal and John Idowu helped understand how different farming practices can improve soil health and save water in the Southwest US by studying the effects of cover crops, tillage, and compost-biochar. Malikka Nocco and her team investigated the connection between healthy soils, sustainable agriculture, and groundwater resources while engaging with growers and the public. Neas, Bird, Contreras, and Johnson expanded the 4-H Water Wizards program, bringing hands-on water science education to more schools and reaching a greater number of low-income youth of color.

Publications

  • Type: Conference Papers and Presentations Status: Published Year Published: 2023 Citation: Cui, W., Levintal, E., Zhou, T., Prieto Garcia, C., Kisekka, I., & Dahlke, H. E. (2023). Influence of Organic Amendments on Nitrogen Dynamics under Agricultural Managed Aquifer Recharge (Ag-MAR). AGU Fall Meeting Abstracts.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Daccache, A., Houtz, D., Emani, M., & Ahmadi, A. (2023). Assessment of high-resolution L-band radiometry application in precision irrigation. EGU General Assembly Conference Abstracts, EGU-17157.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Daccache, A., Xu, N., & Puig, F. (2024). Unleash the strength of precision irrigation with portable L-band microwave and cosmic ray neutron sensors. EGU24-16636.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Dahlke, H. E. (2024). Recharging Californias Groundwater. Invited Oral presentation at the UC Davis Symposium on Agricultural, Environmental and Social Sciences.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Dahlke, H. E., Zhou, T., Levintal, E., Prieto Garcia, C., & Kisekka, I. (2024). Impact of Ag-MAR and vadose zone heterogeneity on the fate and transport of pesticides. Oral presentation at the 18th Biennial Symposium on Managed Aquifer Recharge, Tucson, AZ.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Dahlke, H. E., Zhou, T., Levintal, E., Prieto Garcia, C., Brunetti, G., & Simunek, J. (2024). The impact of agricultural managed aquifer recharge on the fate of pesticides in the vadose zone. Oral presentation at the Toward Sustainable Groundwater in Agriculture: 3rd International Conference Linking Science and Policy, Burlingame, CA.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Do, J., Jeon, M., Nam, W., Shin, H., Lim, H., Lee, K., & Kisekka, I. (2024). Comparative Analysis of Agricultural Water Management in California and Korea: Current Status and Future Perspectives. AIM Anaheim CA.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Bonfil, C., Ogunmokun, F. A., & Kisekka, I. (2023). Evaluating Soil Nitrate Detection Methods Using Electrochemical and Optical Sensors. FREP Conference. Monterey Bay in Seaside, CA.
  • Type: Conference Papers and Presentations Status: Published Year Published: 2023 Citation: Bonfil, C., Ogunmokun, F., Dahlke, H. E., & Kisekka, I. (2023). Assessing Soil Nitrate Sensing Protocols Based on Electrochemical and Optical Sensors. AGU Fall Meeting Abstracts.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Brickman, S., Moonilall, N.I., Reis, R.C., Gaudin, A.C.M., Nocco, M.A., & Lazcano, C. (2024). Soil carbon dynamics in response to a gradient of soil health management practice adoption in Napa vineyards. USDA SW Groundwater SAS 2nd Annual Symposium, Phoenix, AZ.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Chen, C., Roby, M., Sapkota, A., & Kisekka, I. (2023). Evaluating the effect of cover crops on spatio-temporal soil water dynamics in a young pistachio orchard. AGU Fall Meeting Abstracts.
  • Type: Conference Papers and Presentations Status: Published Year Published: 2024 Citation: Cui, W., Dahlke, H. E., Zhou, T., & Kisekka, I. (2024). Modeling Soil Water Dynamics and Nitrogen Cycling Under Agricultural Managed Aquifer Recharge (Ag-MAR). ASA, CSSA, SSSA International Annual Meeting.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Edirisooriya, T. (2023). Economic feasibility of developing alternative water supplies for agricultural irrigation. American Membrane Technology Conference, El Paso, TX.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Fademi, I. (November 2023). Cover Crops, Tillage, and Organic Amendment Effects on Selected Soil Quality Indicators in Irrigated Arid Cropping System. Poster presentation at the ASA, CSSA, and SSSA International Annual Meeting.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Fademi, I. (November 2023). Evaluation of Greenhouse Gas Emissions Under Cover Cropping, Tillage, and Biochar Soil Amendment Practices in an Irrigated Arid Cropping System. Poster presentation at the ASA, CSSA, and SSSA International Annual Meeting.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Fademi, I. (January 2024). Cover Crops, Tillage, and Organic Amendment Effects on Selected Soil Quality Indicators in Irrigated Arid Cropping System. Poster presentation at the USDA NIFA SW Groundwater SAS Annual Symposium.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Fademi, I. (January 2024). Soil Health for Crop Production Practices. Oral presentation at the New Mexico Crop Production Association Conference.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Fademi, I. (February 2024). Impacts of Management Practices on Soil Health and Crop Production in an Irrigated Arid Agroecosystem. Oral presentation at the NMSU Research and Creativity Week.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Fademi, I. (July 2024). Cover Crops, Tillage, and Organic Amendment Effects on Selected Soil Quality Indicators in Irrigated Arid Cropping System. Poster presentation at the New Mexico Soil Health and Soil Carbon Conference.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Flores, S., Norris-Parish, S. L., & Norris, W. (2024). Perceived value and confidence to teach water science and natural resources education to high school audiences [Oral Presentation]. Association for International Agricultural and Extension Education (AIAEE). Inverness, Scotland.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Gautam, P., Khane, P., & Banerjee, S. (2024). Creating and Analyzing a Water Purification System Integrating Activated Carbon, Graphene Nanoplatelets, and a Ti3C2-Based Composite Nanofiltration Matrix: Advancing Multifunctional Nanofiltration Systems for Precise Elimination of Emerging Contaminants. Central California Research Symposium. (Oral Presentation and won the best presentation award)
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Gautam, P., Khane, P., Xiong, D., Ahmed, S., & Banerjee, S. (2024). The fabrication and characterization of a water treatment system incorporating activated carbon, graphene nanoplatelets, and Ti3C2-based composite nanofiltration matrix: towards the development of multifunctional nanofiltration systems. 2024 Materials Research Society Spring Meeting, Seattle, WA.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Ghorbanpour, K. A., Kisekka, I., & Peddinti, S. R. (2024). Enhancing evapotranspiration retrieval through integrating remote sensing and optimization. ASABE AIM Anaheim CA.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Goebel, M., Peralta, J., Kang, S., & Knight, R. (2024). Mapping Sediment Type at a Recharge Site with a Towed Electromagnetic System. Presentation, Toward Sustainable Groundwater in Agriculture - Linking Science and Policy, Burlingame.
  • Type: Conference Papers and Presentations Status: Published Year Published: 2023 Citation: Harter, T. (2023, December 11). Assessing Long-term Groundwater Quality Impacts to Guide Agricultural Policy: Linking Field Research with Basin Scale Modeling [Invited Speaker]. American Geophysical Union Annual Meeting. San Francisco, CA.
  • Type: Conference Papers and Presentations Status: Published Year Published: 2023 Citation: Harter, T. (2023, December 11). The Food-Water Link and Nonpoint Source Flux Impact on Groundwater, Vadose Zone, and Surface Water Quality Poster [Organizer]. American Geophysical Union Annual Meeting. San Francisco, CA.
  • Type: Conference Papers and Presentations Status: Published Year Published: 2023 Citation: Harter, T. (2023, December 11). Comparison of Two Integrated Groundwater-Surface Water Simulation Frameworks for Irrigated Food Production in Highly Developed Water Management Regions [Presenter]. American Geophysical Union Annual Meeting. San Francisco, CA.
  • Type: Conference Papers and Presentations Status: Published Year Published: 2023 Citation: Harter, T. (2023, December 11). Quantifying Uncertainty in Evapotranspiration and Irrigation Estimates Using a Non-point Source Agricultural Contaminant Transport Model and a Densely Instrumented Almond Orchard in the Central Valley, CA (presented by Spencer Jordan) [Presenter]. American Geophysical Union Annual Meeting. San Francisco, CA.
  • Type: Conference Papers and Presentations Status: Published Year Published: 2023 Citation: Harter, T. (2023, December 11). Evaluating the Performance of a Deep Vadose Zone Monitoring System using Bromide as Tracer (presented by Will Lennon) [Presenter]. American Geophysical Union Annual Meeting. San Francisco, CA
  • Type: Other Status: Other Year Published: 2024 Citation: Harter, T. (2024, January 3). Field-Scale Monitoring and Modeling of Nitrate Leaching in a Almond Orchard  Update. [Presenter]. USDA Multistate Research Group W4188 Annual Meeting. Las Vegas, NV.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Harter, T. (2024, January 16). Groundwater Research in the Southwest Groundwater SAS: Annual Update [Presenter]. Southwest Groundwater SAS Annual Conference. Phoenix, AZ.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Harter, T. (2024, July 23). Integrated Hydrologic Model Calibration with Groundwater Age Tracer Data [Presenter]. Soil Water Conservation Society, Annual National Meeting. Myrtle Beach, SC.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Harter, T. (2024, September 24). Scott Valley Airborne Electromagnetic Data Interpretation and Assimilation into a Groundwater Surface Water Model [Presenter]. CWEMF, Annual Meeting. Folsom, CA.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Idowu, J. (July 2024). Soil Health Issues in New Mexico. Oral presentation at the New Mexico Soil Health and Soil Carbon Conference.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Kisekka, I. (2024). Sustainable Groundwater in Agriculture under a Changing Climate. ASABE AIM Anaheim CA.
  • Type: Other Status: Other Year Published: 2024 Citation: Kisekka, I. (2024). Strategic Groundwater Demand Management: Essential for Achieving Sustainability in Overdrafted Aquifers. Techniques to Promote Groundwater Conservation. HalfMoon Education, Inc.
  • Type: Other Status: Other Year Published: 2024 Citation: Kisekka, I. (2024). Advances in Management and Technology at the Nexus of Groundwater and Sustainable Agricultural Systems. Presentation to Korean Delegation. Agricultural Water Center, Davis, CA.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Kisekka, I. (2024). Sustainable Groundwater in Agriculture under a Changing Climate in Southwestern US. 3rd International Conference: Toward Sustainable Groundwater in Agriculture  Linking Science and Policy. San Francisco, CA.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Kisekka, I. (2024). Sustaining Groundwater and Irrigated Agriculture in the Southwestern United States under a Changing Climate. 2nd Annual Symposium for the USDA NIFA Groundwater SAS Project. Phoenix, AZ.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Kisekka, I. (2024). Research Perspectives on Groundwater Demand Management: Current Challenges and Possible Solutions. GDM Workshop. 3rd International Workshop on Groundwater in Agriculture. Burlingame, San Francisco, CA.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Kisekka, I. (2024). AI Applications in Agricultural Water Management. University of Sydney/UC Davis Collaboration. Davis, CA.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Kisekka, I. (2024). Advances in Management and Technology at the Nexus of Groundwater and Sustainable Agricultural Systems. The Future of California: Agricultural Innovation & Sustainability Bay Area Meeting.
  • Type: Other Status: Other Year Published: 2024 Citation: Kisekka, I. (2024). Advances in Management and Technology at the Nexus of Groundwater and Sustainable Agricultural Systems. Invited Speaker Environmental Science Seminar, UC Riverside.
  • Type: Other Status: Other Year Published: 2024 Citation: Kisekka, I. (2024). Groundwater and Sustainable Agricultural Systems in SW US. CAP Grant Proposal Development. Invited Talk at University of Texas, Arlington.
  • Type: Other Status: Other Year Published: 2024 Citation: Kisekka, I. (2024). Groundwater and Sustainable Agricultural Systems in SW US. CAP Grant Proposal Development. Invited Talk at South Carolina State University, Orangeburg, SC.
  • Type: Other Status: Other Year Published: 2024 Citation: Kisekka, I. (2024). Overview of Decision Support System (DSS) Tools for Optimizing Precision Irrigation. Invited Talk. University of Milan, Italy. Summer School in Irrigation Management, Milan, Italy.
  • Type: Other Status: Other Year Published: 2024 Citation: Kisekka, I. (2024). Agrohydrology: Theory and Modeling for Agricultural Water Management. Invited Talk. University of Milan, Italy. Summer School in Irrigation Management, Milan, Italy.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Kisekka, I. (2024). A brief history and future of the large weighing lysimeters at the University of California Davis. UGT Lysimeter and Ecotron Workshop, Munich, Germany.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Kisekka, I. (2024). Groundwater and Sustainable Agricultural Systems Nexus. Invited Talk. Water Resources Management & Sustainability: Solutions for Arid Regions. Dubai, UAE.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Kisekka, I. et al. (2023). AI-Enabled Multianalyte Soil Sensor Nodes for Improving Agricultural Input Utilization and Tracking Chemical Fluxes. USDA/NSF AIFS. Davis, CA.
  • Type: Conference Papers and Presentations Status: Published Year Published: 2023 Citation: Kisekka, I., Hillyer, C., Zilberman, D., Ogunmokun, F., Dahlke, H. E., & Longley, K. et al. (2023). Groundwater and Sustainable Agricultural Systems under a Changing Climate in the Southwest US. AGU Fall Meeting Abstracts.
  • Type: Other Status: Other Year Published: 2023 Citation: Lazcano, C. (2023). Using regenerative management practices to support vineyard soil biodiversity and health. Invited Speaker. Growers, researchers, consultants, vineyard managers, students, Sustainable Ag Expo. San Luis Obispo, CA.
  • Type: Conference Papers and Presentations Status: Published Year Published: 2023 Citation: Lennon, W., Ogunmokun, F., Harter, T., Raij Hoffman, I., & Kisekka, I. (2023). Evaluating the Performance of a Deep Vadose Zone Monitoring System using Bromide as Tracer. AGU Fall Meeting Abstracts.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Moonilall, N.I. Invited Panelist at the Emerging Leaders Roundtable Session at the 2024 Soil and Water Conservation Society International Annual Conference.
  • Type: Other Status: Other Year Published: 2024 Citation: Kisekka, I. (2024). Critical Role of Groundwater in Securing our Food Systems. Invited Talk. University of Florida. Agricultural and Biological Engineering Department. Gainesville, FL.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Kisekka, I. (2023). Water Technologies for Sustainable Agrifood Practices. Invited Talk. HRIVE Hawaii Agrifood Summit. Hawaii Convention Center - Honolulu, HI.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Moonilall, N.I. Invited Panelist at the Emerging Leaders Lightning Talks: Insights and Impact Symposium at the 2024 Soil and Water Conservation Society International Annual Conference.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Moonilall, N.I. Regenerative Viticulture: Insights and Impact. (Invited). 2024 Soil and Water Conservation Society International Annual Conference, Myrtle Beach, SC.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Moonilall, N.I. Invited Speaker at SWCS Leadership Breakfast at the 2024 Soil and Water Conservation Society International Annual Conference.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Moonilall, N.I., Brickman, S., Reis, R.C., Israel, I.R., Makiri, P.J., De Quay, C.I., Bansal, S., Gaudin, A.C.M., Lazcano, C., & Nocco, M.A. (2024). Stacks on Stacks on Stacks: How Do Stacked, Regenerative Practices Impact Soil Physical Health in California Vineyards? USDA SW Groundwater SAS 2nd Annual Symposium, Phoenix, AZ.
  • Type: Conference Papers and Presentations Status: Published Year Published: 2023 Citation: Moonilall, N.I., Brickman, S., Reis, R.C., Israel, I.R., Makiri, P.J., De Quay, C.I., Bansal, S., Gaudin, A.C.M., Lazcano, C., & Nocco, M.A. (2023). Stacks on Stacks on Stacks: How Do Stacked, Regenerative Practices Impact Soil Physical Health in California Vineyards? 2023 American Geophysical Union International Conference, San Francisco, CA.
  • Type: Conference Papers and Presentations Status: Published Year Published: 2023 Citation: Moonilall, N.I., Brickman, S., Reis, R.C., Bansal, S., Makiri, P.J., Israel, I.R., De Quay, C.I., Gaudin, A.C.M., Lazcano, C., & Nocco, M.A. (2023). Stacks on Stacks on Stacks: How Do Stacked, Regenerative Practices Impact Soil Physical Health in California Vineyards? 2023 ASA-CSSA-SSSA Annual International Meeting, St. Louis, MO.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Nicolas, F., Raij-Hoffman, I., Park, S., Doro, L., Jeong, J., Dahlke, H., Harter, T., & Kisekka, I. (2024). ASABE AIM Anaheim CA.
  • Type: Conference Papers and Presentations Status: Published Year Published: 2024 Citation: Ogunmokun, F. A., Jordan, S., Bonfil, C., Armstrong, C., McMenomey, D., Oker, T. E., Brown, P. H., Harter, T., & Kisekka, I. (2024). Assessing the Effectiveness of Conservation Practices for Mitigating Nitrate Leaching to Groundwater in the Central Valley of California. ASA, CSSA, SSSA International Annual Meeting.
  • Type: Conference Papers and Presentations Status: Published Year Published: 2023 Citation: Ogunmokun, F., Osterman, G. K., Nicolas, F., Li, X., Zapata, M., & Kisekka, I. (2023). Assessing The Effectiveness of Winter Flooding in Leaching Boron out of the Root Zone of Almond Orchards. AGU Fall Meeting Abstracts.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Ogunmokun, F.A., Jordan, S., Bonfil, C., Harter, T., & Kisekka, I., (2024). Monitoring nitrate contamination in groundwater under intensive irrigated agriculture in Californias Central Valley. 79th Soil and Water Conservation Society Conference, Myrtle Beach, SC, USA.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Peddinti, R. S., & Kisekka, I. (2024). Estimating Crop Evapotranspiration Variability in Processing Tomatoes Using High-Resolution Aerial Imagery and pySEBAL Algorithm. EGU General Assembly Conference Abstracts.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Peddinti, R. S., Chen, C., Ogunmokun, F., Sapkota, A., Matthew, R., & Kisekka, I. (2024). Field-Scale Estimation of Soil Hydraulic Properties in Cover versus Non-Cover Cropped Orchards through Integrated Cosmic Ray and HYDRUS Modeling. AIM Anaheim CA.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Peddinti, S. R., Kisekka, I., Savchik, P., Yang, L., Fulton, A., Culumber, M., Bali, K., Milliron, L., Edwards, E., Nocco, M., Reyes, C. A., Mahoney, R. J., & Shackel, K. (2023). Multisite evaluation of stem water potential sensors in almonds. Almond Board California, Conference, Sacramento
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Ogunmokun, F.A., Bonfil, C., Nicolas, F., Mcmenomey, D., Lennon, W.N., Harter, T., & Kisekka, I., (2024). Evaluating the impact of sunflower cultivation on nitrate leaching into groundwater in the central valley: a conservation assessment. UC Davis 9th Postdoctoral Research Symposium, Davis, CA, USA.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Petty, K., Norris-Parish, S. L., & Shukla, M. (2024, January). Education for a new generation: Using online modules for groundwater education [Poster Presentation]. USDA SAS Groundwater Annual Conference. Phoenix, AZ.
  • Type: Other Status: Other Year Published: 2024 Citation: Phen, S., Alameda, E., Wright, W.F., Mizuno, W., Longley, K., Banerjee, S., & Waite, M. (2024). Production of Agricultural Water and Nutrients from Saline Water Sources. Presentation to the 2024 Research Showcase in the Jordan Agricultural Research Center. California State University, Fresno. (Poster presentation)
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Reis, R.C., Moonilall, N.I., Brickman, S., Bansal, S., Israel, I.R., De Quay, C.I., Sapkota, A., Chen, C., Roby, M., Kisekka, I., Nocco, M.A., Gaudin, A.C.M., & Lazcano, C. (2024). Unearthing the Benefits of Cover Crops: An Analysis of Cover Crop Impacts on Soil Physical Properties and Soil Carbon in a young Pistachio Orchard. USDA SW Groundwater SAS 2nd Annual Symposium, Phoenix, AZ.
  • Type: Conference Papers and Presentations Status: Published Year Published: 2023 Citation: Sanyal, D., & Stackpole, C. (2023). Evaluating Potential Cover Crops for Soil Health Improvements in the Desert Southwest. ASA, CSSA, SSSA International Annual Meeting, St. Louis, MO. (Conference presentation)
  • Type: Other Status: Other Year Published: 2024 Citation: Scudiero, E., Li, N., Skaggs, T., Benes, S.E., Montazar, A., & Corwin, D. (2024). Assessing Soil Salinity and Sodicity Using Remote and Proximal Sensing Data. FAO (Food and Agriculture Organization) Global Soil Partnership INSAS (International Network on Salt-affected Soils). Two webinars.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Sehgal, M., Gautam, P., Lopez, E., Ahmed, S., & Banerjee, S. (2023). In-situ and ex-situ surface engineering, processing, and characterization of PLA-based biocompatible composites using micro-plasma-based techniques. 2023 TMS Annual Meeting & Exhibition, San Diego, CA.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Stackpole, C., Sanyal, D., & Megdal, S. B. (2023). Selecting Cover Crop Mixes for Desert Southwest. The University of Arizona Cooperative Extension Conference, Tucson, AZ.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Vang, K., Xiong, D., Ryman, D., Leal-Quiros, E, Ahmed, S., & Banerjee, S. (2024). Modifying Bio-Ingredients within an Integrated Food Printer using an In-Situ Corona Discharge Non-Thermal-Plasma Approach: A Step Toward Creating Innovative Methods for Characterizing Engineered Food Materials and Biomedicine. 2024 Materials Research Society Spring Meeting, Seattle, WA.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Vang, K., Xiong, D., Sehgal, M., Gautam, P., Ahmed, S., & Banerjee, S. (2023). In-situ corona discharge non-thermal-plasma based modification of bio-ingredients in an integrated food printer: towards developing novel methodologies for characterization of engineered food materials. 2023 Materials Research Society Fall Meeting, Boston, MA.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Williams, S.A. (2024). Modeling Impacts of Agricultural Land Management on Groundwater in Pinal AMA. Oral Presentation. AWRA Spring Conference, Tuscaloosa, AL.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Williams, S.A., Kisekka, I., Megdal, S.B., & Ghorbanpour, A. (2024). Modeling the Impact of Agricultural Land Management on Groundwater in Arizona. Poster Presentation. Southwest Groundwater SAS Annual Symposium, Phoenix, AZ.
  • Type: Other Status: Other Year Published: 2024 Citation: Wright, W.F. (2024). Optimization of Ion Exchange Pretreatment for the Desalination of Agricultural Drainage Water. Presentation to the California State Department of Water Resources grant manager for Proposition 204 Drainage Reuse Grant Program. California State University, Fresno. (20-minute presentation)
  • Type: Other Status: Other Year Published: 2023 Citation: Wright, W.F. (2023). Optimization of Ion Exchange Pretreatment for the Desalination of Agricultural Drainage Water. Sabbatical Research Presentation to the Department of Civil & Geomatics Engineering. California State University, Fresno. (20-minute presentation)
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Wright, W.F. (2023). Optimization of Ion Exchange Pretreatment for the Desalination of Agricultural Drainage Water. 7th Annual Agricultural Research Institute Principal Investigators Meeting. Sacramento, CA. (8 minute platform presentation)
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Wright, W.F. and Alameda, E. (2023). Production of Agricultural Water and Nutrients from Saline Water Sources. California State University CSU-Water (formerly WRPI) Annual Conference. Poster presentation, CSU Monterey.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Yang, B., Ward, D., Davis, L., Gautam, P., Govea, D., Moreno, C., Randhawa, A., Ahmed, S., & Banerjee, S. (2023). Study of the efficacy of a perovskite sensor-based non-invasive glucose monitoring system using infrared light intensity correlations: towards the development of measurement metrics using data analytics. 2023 TMS Annual Meeting & Exhibition, San Diego, CA.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Xiong, D., Vang, K., Ryman, D., Khane, P., Gautam, P., Ahmed, S., & Banerjee, S. (2024). Development and Characterization of Flexible PVDF- TrFE-BaTiO3-Ti3C2 MXene-Based Composite Multi-Morphs: Towards The Development of Electro-Active Biomedical-Wearable Devices. 2024 Materials Research Society Spring Meeting, Seattle, WA.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Xiong, D., Sehgal, M., Hernandez, K., Vang, K., Gautam, P., Ahmed, S., & Banerjee, S. (2023). In-Situ Treatment of Flexible Polylactic Acid (PLA) using Non-Thermal Plasma and Various Electrode Geometries: Towards Developing Advanced Analytical and Machine Learning based Hybrid Methodologies to Study The Wettability Characteristics using Surface Topography, Contact Angle Characteristics and Electrical Impedance Spectroscopy. 2023 Materials Research Society Fall Meeting, Boston, MA.
  • Type: Conference Papers and Presentations Status: Published Year Published: 2023 Citation: Xu, N., Daccache, A., Ahmadi, A., & Puig, F. (2023). Evaluation of the accuracy of microwave in measuring soil moisture content? An evidence-based research from published literature. AGU Fall Meeting Abstracts 2023 (1392), H11I-1392.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Yang, L., Bailey, B. N., & Kisekka, I. (2024). Evaluating the Impact of Groundwater Level Declines on Micro-Sprinkler Irrigation System Performance in Almond Orchards. ASABE AIM Anaheim CA.
  • Type: Other Status: Other Year Published: 2024 Citation: Zilberman, D. (2024, January 10). Managing nutrients in Almonds. Almond Nutrient Summit, UC Merced.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Zilberman, D. (2024, April 8). Building the Bioeconomy in the Central Valley. The future of the Central Valley - Workshop at the Bay Area Council, Historic Klamath Ferry Boat, Pier 9, San Francisco.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Zilberman, D. (2024, July 25  August 2). The Economics of the Circular Bioeconomy. Invited to talk at the Circular Bioeconomy Systems (CBS) Day. Anaheim, CA.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Zilberman, D. (2023, October 13). Challenges of transformation of the Central Valley  Lessons for water systems from Israel and California. Presentation in the 3rd Annual Meeting of Labor & Automation in California Agriculture. Riverside, CA.
  • Type: Other Status: Published Year Published: 2024 Citation: Zilberman, D. (2024, August). The Challenges of Building Symbiotic Supply Chains in the Bioeconomy. https://energybiosciencesinstitute.org/the-challenges-of-building-symbiotic-supply-chains-in-the-bioeconomy/
  • Type: Other Status: Published Year Published: 2024 Citation: Zilberman, D., & Roland-Holst, D. (2024, September). Climate Solutions and Sustainable Prosperity from the Bioeconomy: The Case of California. https://brie.berkeley.edu/publications/climate-solutions-and-sustainable-prosperity-bioeconomy-case-california Based on earlier research.
  • Type: Peer Reviewed Journal Articles Status: Published Year Published: 2024 Citation: Peddinti, S.R., Nicolas, F., Raij-Hoffman, I., & Kisekka, I. (2024). Evapotranspiration estimation using high-resolution aerial imagery and pySEBAL for processing tomatoes. Irrig Sci. https://doi.org/10.1007/s00271-024-00943-5.
  • Type: Peer Reviewed Journal Articles Status: Published Year Published: 2024 Citation: Parker L.E., Zhang N., Abatzoglou J.T., Kisekka I., McElrone A.J., Ostoja S.M. (2024). A variety-specific analysis of climate change effects on California winegrapes. International Journal of Biometeorology. doi.org/10.1007/s00484-024-02684-8
  • Type: Peer Reviewed Journal Articles Status: Published Year Published: 2024 Citation: Bruno, E.M., Jessoe, K. (2024). Designing Water Markets for Climate Change Adaptation. Nature Climate Change, 14, 2024: 331-339. https://www.nature.com/articles/s41558-024-01964-w
  • Type: Peer Reviewed Journal Articles Status: Published Year Published: 2024 Citation: Bruno, E. M., Jessoe, K. K., & Hanemann, W. M. (2024). The dynamic impacts of pricing groundwater. Journal of the Association of Environmental and Resource Economists, 11(5), 12131249. https://doi.org/10.1086/728988
  • Type: Peer Reviewed Journal Articles Status: Published Year Published: 2024 Citation: Bansal, S. Gonzalez-Maldonado, N., Yao, E., Wong, C.T.F., Adamo, I. Acin-Albiac, M., Garcia-Jimenez, B., Acedo, A Lazcano, C. Regenerative soil management practices no-till and sheep grazing induce significant but contrasting short-term changes in the vineyard soil microbiome. Plants, People, Planet, (2024) 1-18. https://doi.org/10.1002/ppp3.10575
  • Type: Conference Papers and Presentations Status: Published Year Published: 2024 Citation: Ramireddy, M. R., Andrade, M. A., OShaughnessy, S. A., Kisekka, I., & Evett, S. R. (2024). Monolith to microservices: Refactoring the architecture and documentation of ARSPivot. 2024 ASABE Annual International Meeting, Paper No. 2401377.
  • Type: Conference Papers and Presentations Status: Published Year Published: 2023 Citation: Zufall, E., & Scott, T. (2023). Modeling Californias Groundwater Governance System Using Local Resource Management Plans. American Geophysical Union, San Francisco, CA.
  • Type: Other Status: Published Year Published: 2023 Citation: ASCE: How to fight food insecurity. https://www.asce.org/publications-and-news/civil-engineering-source/article/2023/12/06/how-to-fight-food-insecurity
  • Type: Peer Reviewed Journal Articles Status: Published Year Published: 2024 Citation: Guerra, A., Nicolas, F., Peddinti, S., Ogunmokun, F., & Kisekka, I. (2024). Evaluating a novel radio frequency based soil moisture sensor under saline and imperfect installation. J. Nat. Resour. Agric. Ecosyst., 2(3), 119-128. https://doi.org/10.13031/jnrae.15805.
  • Type: Other Status: Published Year Published: 2024 Citation: Zilberman, D. (2024, May). Upscaling Innovations to Control Climate Change. https://energybiosciencesinstitute.org/upscaling-innovations-to-control-climate-change/
  • Type: Other Status: Published Year Published: 2024 Citation: Zilberman, D. (2024, February). The Challenges and Opportunities of the Bioeconomy. https://energybiosciencesinstitute.org/the-challenges-and-opportunities-of-the-bioeconomy/
  • Type: Other Journal Articles Status: Published Year Published: 2024 Citation: Kisekka, I., Peddinti, S. R., Savchik, P., Yang, L., Culumber, M., Bali, K., Milliron, L., Edwards, E., Nocco, M., Reyes, C., Mahoney, R., Shackel, K. A., & Fulton, A. (2024). Multisite evaluation of microtensiometer and osmotic cell stem water potential sensors in almond orchards. Computers and Electronics in Agriculture.
  • Type: Peer Reviewed Journal Articles Status: Published Year Published: 2024 Citation: Raij-Hoffman I, Vanella D, Ram�rez-Cuesta JM, Peddinti SR, Kisekka I. (2024). Detecting soil water redistribution in subsurface drip irrigated processing tomatoes using electrical resistivity tomography, proximal sensing and hydrological modelling. Sci Total Environ. 2024 Feb 20;912:169620. doi: 10.1016/j.scitotenv.2023.169620. Epub 2023 Dec 28. PMID: 38157915. https://doi.org/10.1016/j.scitotenv.2023.169620
  • Type: Peer Reviewed Journal Articles Status: Published Year Published: 2024 Citation: Vel�zquez-Chavez, L. J., Daccache, A., Mohamed, A. Z., & Centritto, M. (2024). Plant-based and remote sensing for water status monitoring of orchard crops: Systematic review and meta-analysis. Agricultural Water Management, 303, 109051. https://doi.org/10.1016/j.agwat.2024.109051
  • Type: Peer Reviewed Journal Articles Status: Published Year Published: 2024 Citation: Edirisooriya, E.M.N.T., Wang, H., Banerjee, S., Longley, K., Wright, W., Mizuno, W., Xu, P. (2024). Economic feasibility of developing alternative water supplies for agricultural irrigation. Current Opinion in Chemical Engineering 43, 100987. https://doi.org/10.1016/j.coche.2023.100987
  • Type: Peer Reviewed Journal Articles Status: Published Year Published: 2024 Citation: Kisekka, I., Srinivasa Rao Peddinti, Daniela Vanella, Ellie Andrews, Patrick H. Brown, Sat Darshan S. Khalsa. (2024). Organic soil amendment effects on soil hydrology in an almond orchard evaluated using time-lapse electrical resistivity tomography, Agricultural Water Management, Volume 302, 2024, 108979, ISSN 0378-3774, https://doi.org/10.1016/j.agwat.2024.108979
  • Type: Peer Reviewed Journal Articles Status: Published Year Published: 2024 Citation: Savchik, P., Nocco, M., & Kisekka, I. (2024). Mapping almond stem water potential using machine learning and multispectral imagery. Irrig Sci. https://doi.org/10.1007/s00271-024-00932-8.
  • Type: Peer Reviewed Journal Articles Status: Published Year Published: 2024 Citation: Zufall, Elise, and Tyler A. Scott. (2024). "Syntactic measurement of governance networks from textual data, with application to water management plans." Policy Studies Journal. https://doi.org/10.1111/psj.12556
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Alameda, E., Phen, S., Wright, W.F., Mizuno, W., Longley, K., Banerjee, S., Waite, M. Production of Agricultural Water and Nutrients from Saline Water Sources. Presentation to the 45th Annual Central California Research Symposium. California State University, Fresno, April 3, 2024. (Poster presentation)
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Aldughaishi, U., Grattan, S. R., Nicolas, F., Peddinti, S. R., & Kisekka, I. (2024). Assessing the Impact of Recycled Water Use on Infiltration and Soil Structure. ASABE AIM Anaheim CA.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Ahmadi, A., Kazemi, M.H., Daccache, A., & Snyder, R.L. (2023). A new data-driven approach to estimate reference evapotranspiration without reference grass surface. AGU Fall Meeting Abstracts 2023, H14F-01.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Banerjee, S., Ryman, D., & Ahmed, S. (2024). The Emergence of Transdisciplinary Material Science in Diverse Applications: Towards The Development of Frameworks for Inclusive and Diverse Perspectives of Material Science Research and Education. 2024 Materials Research Society Spring Meeting, Seattle, WA.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Benes, S.E., Scudiero, E., Quinn, N.W., Singh, A., Medina, R., & Soriano, M. (2023). Decision Support Tools for Salinity Management and Forage Yield Sustainability under Saline Irrigation. Western Alfalfa and Forage Symposium, Reno, NV.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Benes, S.E. (2024). Salinity and Sodicity Basics and Salt Tolerant Forages for Uzbekistan. FAO (Food and Agriculture Organization, United Nations) working group on Water Scarcity in Agriculture (WASAG) webinar. Three in-country training sessions (Karshi, Nukus and Chimbay).
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Bhatt, H., Xiong, D., Correa, A., Gautam, P., Khane, P., Ryman, D., Ahmed, S., & Banerjee, S. (2024). Development and Characterization of Flexible PVDF-TrFE-Ti3C2 MXene-Based Composite Co-Polymer Solid Electrolytes: Towards Application in Solid-State Li-Ion Batteries. 2024 Materials Research Society Spring Meeting, Seattle, WA
  • Type: Conference Papers and Presentations Status: Other Year Published: 2024 Citation: Bonfil, C., Ogunmokun, F. A., & Kisekka, I. (2024). Evaluating Soil Nitrate Sensing Protocols Based on Electrochemical and Spectroscopic Sensors. ASABE AIM Anaheim CA.


Progress 09/01/22 to 08/31/23

Outputs
Target Audience:The target audiences for various initiatives encompass a broad spectrum, including groundwater and irrigation managers, scientists, students at different educational levels (K-12, undergraduate, secondary), teachers, extension specialists, the private sector, policymakers, growers of annual and perennial crops , extension advisors, water managers, natural resource managers, soil scientists, hydrologists, agronomists, agroecologists, scientific communities, academics, stakeholders, farm workers, environmental justice groups, regulatory agency staff, certified crop advisors, crop consultants, start-up companies in agtech, , congressional staff, general public, drainage water managers, commercial growers in Arizona, researchers, and engineers involved in desalination and water treatment technologies. Changes/Problems:Increase in salaries for graduate students and postdocs due to the United Auto Workers (UAW) ratified union contract with UC last year. As a project, we have a total deficitof $594,261 to cover salary and benefit increases for 8 postdocs and 6 graduate students covered under the UAW negotiated contract. UC Davis agreed to cover $5,000 per graduate student and postdoc for a total of in the first year of $70,000 in the first year of the transition. However, this is not enough. We requested supplmented budget support from NIFA but we were not successful. We remain hopeful. What opportunities for training and professional development has the project provided? Kisekka - Students graduated: 1 PhD and 1 MSc; Undergraduate students trained: 8 Josse - Jeffrey Hadachek who was hired last year as a GSR on this project has accepted a job as an assistant professor in the Department of Applied and Agricultural Economics at University of Wisconsin, Madison. SWAT training (30 participants from different states and countries) Sally Neas - We provided two trainings for educators serving youth in the program. Each training was three hours long and was attended by at least five educators. Nocco and Lazcano - A research team at UC Davis involved two undergraduate student assistants, Chiara de Quay and Ivy Israel, who provided crucial support to a PhD student and postdocs in the field, focusing on sample collection and meta-analysis data extraction, while Raymond Reis, a Junior Specialist, offered technical support for the collection and analysis of soil samples. Dr. Sangeeta Bansal, the postdoc overseeing the field survey, transitioned to a faculty position at Fresno State, with her leadership temporarily assumed by Dr. Nall Moonillal until a replacement postdoc is hired. Sarah Brickman, a graduate student, takes a lead role in meta-analysis and aids the postdoc in the ongoing soil survey. How have the results been disseminated to communities of interest?Various effective methods have been employed to disseminate research results: Cross-institutional collaboration and knowledge sharing. Grower education clinics to share insights and practical knowledge. 4-Hprogram for youths Organized workshops designed specifically for farmers and stakeholders to facilitate direct engagement. Extension outreach Educational outreach materials like HydroLearn Several field demonstrations Scientific seminars and presentations: Organized field tours for water professionals to showcase ongoing research projects. These diverse methods were used to ensure that research findings are communicated effectively to a broad audience, including growers, students, policymakers, and the local community. What do you plan to do during the next reporting period to accomplish the goals?All project goals are on track. We plan to continue implementing the project activies as outlined in the proposal.

Impacts
What was accomplished under these goals? Objective One: In Year 2, led by Steven Ostoja and Lauren Parker, our climate risk assessment analyzed exposure for six winegrape varieties across 12 California American Viticultural Areas. Spanning 1991-2020 & 2040-2069, considering RCP 4.5 & RCP 8.5, we developed variety-specific models for grape phenology shifts. We assessed 14 agroclimate metrics for potential variety- and location-specific climate exposure. John Idowu continued his soil health project in Las Cruces, exploring cover crop, soil amendment, and tillage impacts. Results showed cover crops positively influencing corn silage yield and soil biological measurements. Conventional tillage had the highest yield, while compost-biochar amendment showed higher yields and improved soil quality, affecting soil moisture during corn growth. Cristina Lazcano, Amelia Gaudin, and PhD student Sarah Brickman researched cover crops and regenerative soil practices' effects on soil hydraulic properties. A database was built, and a soil survey in 30+ vineyards and a pistachio orchard evaluated long-term impacts on soil properties. Data is still being analyzed. Sanyal Debankur conducted on-farm trials in Arizona, identifying cover crop species and collecting soil samples. Outcomes were presented at conferences, emphasizing cover crop potential as forage with lower water requirements. Isaya Kisekka focused on water demand management, establishing the Central Valley ET Network for validating remote sensing-based ET measurements. Preliminary research highlighted the need for a data assimilation framework. Ongoing assessments of conservation practices to reduce nitrate leaching emphasized groundwater quality protection. Dr. Karl Longley, Dr. William Wright, Dr. Sankha Banerjee, and Dr. Pei Xu advanced membrane technology for brackish water treatment. Cation exchange membranes with enhanced conductivity and stability were developed, aiming to improve membrane longevity for cost-effective treatment. Sharon Benes researched SJRIP site soil salinity changes (2017-2021) with change detection maps. Remote sensing methods explored decision support, with NDVI showing a moderate correlation with forage yield. Real-time monitoring will contribute to future water and solute transport modeling. Patrick Brown led the nutrient and salinity management project in almond orchards collecting comprehensive drone and satellite imagery, tree physiology and yield data. In-field variability maps and an explanatory model were developed. Objective Two: Thomas Harter led the development of the Central Valley NPSAT Modeling Tool. The focus was on comparing spatio-temporal recharge distribution from different models. Collaboration with stakeholders refined the tool, updating groundwater flow and transport simulation code with recharge algorithms and virtual well generation. The Mantis online tool underwent a redesign, enhancing scenario management features. In the AgMAR project led by Helen Dahlke and Scott Bradford, evaluation of the 2022 Almond Orchard experiment involved extensive work at multiple field sites, employing different managed aquifer recharge operations. At Terranova Ranch, a T-PROGS model was built, and drywell recharge operations were monitored. Geophysical data collection included time-lapse electrical resistivity tomography (ERT) measurements to monitor percolating recharge water. In the Rio Grande Watershed Modeling project led by Manoj Shukla, the SWAT model simulated streamflow, with a parameter sensitivity analysis revealing key parameters influencing model performance. The study compared various climate data sources, finding reliable SWAT simulations across watersheds. Objective Three: Tyler Scott and Mark Lubell led the development of a software tool for measuring policy networks. A manuscript demonstrating the tool's application is under peer review, and another analyzing groundwater sustainability plans is being developed. The open-source R package, textNet, operationalizing the NLP tool, is available on Github. Data collection focused on metadata to support the tools and analysis. David Zilberman developed a framework for teaching water economics, emphasizing historical water rights, irrigation technology adoption modeling, and diverse water pricing approaches. The framework for analyzing water supply chains highlighted efficiency, equity, and resilience needs. Applied to examine California's water history, it anticipates demand for innovative solutions. Katrina Jessoe's working paper in Objective Three analyzes surface water shocks and heat impact on new well construction, groundwater levels, and domestic well failures. The paper is in the revise and resubmit stage. Findings were presented to stakeholders, including farmers, community drinking water groups, state agencies, and academics. Objective Four: Shannon Norris made advancements in refining outlines for 10 proposed modules in Objective Four, focusing on groundwater, irrigation, and climate change. Analysis of online water educational resources informed the design of three comprehensive modules tailored for high school students. Emphasis on current issues, policies, groundwater types, overdraft, contamination, recharge, irrigation, best practices, systems, and climate change impact was instrumental in enhancing learning outcomes, activities, and supporting documents. A teacher advisory board ensured module alignment with standards. Acquisition of Articulate Storyline software initiated pilot module programming. Three modules of the proposed 10 were created, marking testing on the HydroLearn system's commencement. Charles Hillyer, after resolving administrative issues in the first year, faced challenges in recruitment efforts for student and startup company participation. Limited success was reported, with only two undergraduate students fully participating. Plans for expanded outreach in Year three is underway. Objective Five: In the past year, Sally Naes successfully scaled the Water Wizards program, increasing participation from 100 to over 500 youth. A new delivery mode, with classroom teachers facilitating, was implemented. Key goals were met, including recruiting a community educator, creating essential materials, and organizing logistics. Sally Naes' leadership and direct teacher support positively impacted the program. Pre- and post-program surveys validated positive learning outcomes. Mallika Nocco reported significant progress in project objectives. Experimental sites were identified for a decision support tool for soil health and recharge. A sampling campaign at vineyard sites explored drought resilience, soil health, and managed aquifer recharge. Ongoing efforts translate data into decision support tools. Knowledge dissemination included Water Talk Podcast episodes and Grower Education Clinics reaching 150 growers. Sargeant Green, although extension efforts weren't initially programmed, proactively engaged in technical groups focused on groundwater recharge feasibility. The aim is to understand information utilization by institutions involved in groundwater management, offering sustainability opportunities in subsequent years. In conclusion, the efforts across all objectives have contributed to a comprehensive understanding of various aspects related to climate risk assessment, soil health, water management, policy networks, and educational outreach. These findings provide a foundation for sustainable and resilient agricultural practices and inform future research and extension activities.

Publications

  • Type: Journal Articles Status: Published Year Published: 2023 Citation: Nicolas, F., Kamai, T., Gal, A.B., Ochoa-Brito, J., Daccache, A., Ogunmokun, F., & Kisekka, I. (2023). Assessing salinity impacts on crop yield and economic returns in the Central Valley. Agricultural Water Management, 287, 108463.
  • Type: Journal Articles Status: Published Year Published: 2023 Citation: Zilberman, D., Huang, A., Goldberg, L., & Reardon, T. (2023). The evolution of symbiotic innovation, water, and agricultural supply chains. Applied Economic Perspectives and Policy, 45(3), 1592-1603.
  • Type: Journal Articles Status: Published Year Published: 2023 Citation: Zilberman, D., Kaplan, S., Huang, A., & Goldberg, L. (2023). Teaching Water Economics Using Dynamics and a Political Economy Framework. Applied Economics Teaching Resources
  • Type: Journal Articles Status: Published Year Published: 2023 Citation: Linker, R., & Kisekka, I. (2023). Model-based simulation-optimization of irrigation schedulingA field evaluation with processing tomatoes. Smart Agricultural Technology, 4, 100234.
  • Type: Journal Articles Status: Published Year Published: 2023 Citation: 4Tang, M.M., Sadowski, D.L., Peng, C., Vougioukas, S.G., Klever, B., Khalsa, S.D.S., Brown, P.H., & Jin, Y.F. (2023). Tree-level almond yield estimation from high resolution aerial imagery with convolutional neural network. Frontiers in Plant Science, 14, AR 1070699. DOI: 10.3389/fpls.2023.107069
  • Type: Journal Articles Status: Published Year Published: 2023 Citation: Beeri, I., Kisekka, R., Pelta, R., Raij Hoffman, I., Sade, Z., Peddinti, S.R., & Shilo, T. (2023). Evaluation of crop evapotranspiration from the fusion of spectral and SAR data together with various reference evapotranspiration sources. Precision Agriculture, Pages: 661  667.
  • Type: Book Chapters Status: Published Year Published: 2023 Citation: Lazarovitch, N., Kisekka, I., Oker, T.E., Brunetti, G., W�hling, T., Li, X., Li, Y., Skaggs, T.H., Furman, A., Sasidharan, S., Raij-Hoffman, I., & `im?nek, J. (2023). Modeling of irrigation and related processes with HYDRUS. Advances in Agronomy, 181, 79-181
  • Type: Journal Articles Status: Published Year Published: 2022 Citation: Drechsler, K., & Kisekka, I. (2022). Variety specific irrigation of almonds during hull split, effects on yield and quality. Agricultural Water Management, 271, 107770.
  • Type: Journal Articles Status: Published Year Published: 2022 Citation: Yao, Y., Lund, J.R., & Harter, T. (2022). Conjunctive management for agriculture with groundwater salinity. Water Resources Research, 58(10). DOI: 10.1029/2021WR031058
  • Type: Websites Status: Published Year Published: 2023 Citation: Harter, T., Nocco, M., Kisekka, I., & Dahlke, H. (2023, April 12). Commentary: How managing flood flows can help rescue aquifers. Ag Alert. https://www.agalert.com/california-ag-news/archives/april-12-2023/commentary-how-managing-flood-flows-can-help-rescue-aquifers/
  • Type: Journal Articles Status: Under Review Year Published: 2023 Citation: Kourakos, G., Harter, T., & Dahlke, H. (2023, in review). Ichnos: A parallel particle tracking utility for flow simulations. Journal of Environmental Modelling and Software.
  • Type: Journal Articles Status: Under Review Year Published: 2023 Citation: Kourakos, G., Pauloo, R., & Harter, T. (2023, in review). A Statistical Method for Simulating 3D Well Screen Locations from Limited Regional Well Log Data. Journal of Groundwater.
  • Type: Journal Articles Status: Under Review Year Published: 2023 Citation: Kouba, C., & Harter, T. (2023, in review). Seasonal prediction of end-of-dry season watershed behavior in a highly interconnected alluvial watershed, Northern California. Journal of Hydrology and Earth System Sciences.
  • Type: Journal Articles Status: Published Year Published: 2023 Citation: Edirisooriya, E.M.N. Thiloka, Wang, H., Banerjee, S., Longley, K., Wright, W., Mizuno, W., & Xu, P. (Submitted). Economic feasibility of developing alternative water supplies for agricultural irrigation. Current Opinion in Chemical Engineering.
  • Type: Other Status: Published Year Published: 2023 Citation: Condon, L.E., J. Ruiz, Antin, P., Buizer, J., Collinge, S., Esquerra, N.L., Ikner,L.A., Megdal, S.B., and Patten, K.J. (2023) The Presidential Advisory Commission on the Future of Agriculture and Food Production in a Drying Climate. Final Report, August 2023. https://doi.org/10.2458/10150.66955
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Zufall, E., & Scott, T. (2023, May 15). The Grammar of Governance: Building semantic models of governance networks from text. Invited Presentation at the Conference for Methodological Pluralism in Public Management, Indiana University.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Al Dughaishi, U., & Kisekka, I. (2023). Evaluation of the effect of recycled water cation composition on strawberry growth and development. Paper presented at the ASABE AIM 2022, Omaha, Nebraska.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Arboleda-Zapata, M., Li, X., Osterman, G., Sasidharan, S., Bradford, S., & Dahlke, H. (2023, submitted). Monitoring wetting front evolution from drywells using time-lapsed electrical resistivity tomography. Paper submitted to AGU Fall Meeting.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Bonfil, C., Ogunmokun, F., Goodrich, P., Baumbauer, C. L., Lahann, L., Koh, S., Arias, A. C., & Kisekka, I. (2023). Evaluation of a Potentiometric Soil Nitrate Sensor for Detecting Nitrate Transport in Glass Beads. Paper presented at the 2023 UCOWR/NIWR Annual Water Resources Conference, Fort Collins, CO.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2022 Citation: Brown, P. H. (2022, December 6). Optimizing nutrient management. Paper presented at the Almond Conference, 600 attendees.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Brown, P. H. (2023, February 1). Nutrient management in tree crops. Presentation at Fruit Growers Lab, Lodi, 120 attendees.
  • Type: Other Status: Other Year Published: 2023 Citation: Brown, P. H. (2023, March 12). Optimizing nutrient management. Presentation at Pomology Short Course-UCANR, 2-hour training session, 54 attendees.
  • Type: Other Status: Other Year Published: 2023 Citation: Brown, P. H. (2023, March 29). Methodology for nutrient analysis in tree crops. Presentation at Wilbur Ellis PCA Training Session, Chico, 80 attendees.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Brown, P. H. (2023, May 9). Methodology for nutrient analysis in tree crops. Presentation at ISHS Almond and Pistachio, Davis, 140 attendees
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Dahlke, H. (2023, April 25). Storing More Water Through Intentional Groundwater Recharge. Paper presented at the UC ANR statewide conference, Fresno, CA.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2022 Citation: Chen, C., & Kisekka, I. (2022). Estimating blue and green water footprints of pistachios in Madera County, CA. Paper presented at the SW Groundwater SAS Annual Symposium, November 2022, Davis, CA.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Chen, C., Roby, M., Sapkota, A., & Kisekka, I. (2023, May). Evaluating effects of cover crops on crop coefficients and water use of young pistachio (Pistacia vera L.) orchards. Paper presented at the VIII International Symposium on Almonds and Pistachios, Davis, CA.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Dahlke, H. (2023, April 17). Nitrogen fate during agricultural managed aquifer recharge: Linking plant response, hydrologic, and geochemical processes. Paper presented to the Advisory committee of the GW CAP project (this project).
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Dahlke, H. E., Levintal, E., Prieto Garcia, C., Kisekka, I., & Harter, T. (2022). Deciphering flow and transport processes from the land surface to a groundwater well during managed aquifer recharge. Paper presented at the AGU Fall Meeting.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Edirisooriya, T. (2023, September 26-29). Economic feasibility of developing alternative water supplies for agricultural irrigation. Paper presented at the American Membrane Technology Conference, El Paso, Texas.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Fademi, I. (2023). Impacts of Soil Health Practices on Soil Moisture Retention in an Arid Agroecosystem. Oral presentation at the 2023 UCOWR/NIWR Annual Water Resources Conference, June 13-15, 2023, Fort Collins, CO.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Fademi, I., Omer, M. N., Ghimire, R., & Idowu, O. J. (2022). Winter Cover Crops and Soil Amendment Effects on Selected Soil Measurements in an Arid Agroecosystem [Abstract]. Paper presented at the ASA, CSSA, SSSA International Annual Meeting, Baltimore, MD. Oral Presentation. Retrieved from https://scisoc.confex.com/scisoc/2022am/meetingapp.cgi/Paper/142840
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Guerra, A., Peddinti, S. R., Ogunmokun, F., & Kisekka, I. (2023, April 7-8). Evaluating a Novel Radio Frequency-Based Soil Moisture Sensor Under Saline and Imperfect Installation. Paper presented at the Stanford Undergraduate Research Association (SURA), Palo Alto, CA.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2022 Citation: Harter, T. (2022, December). Nitrate Validation for Non-point Source Assessment Tool in the Central Valley, California. Paper presented at the American Geophysical Union.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2022 Citation: Harter, T. (2022, December). Seasonal Prediction of End-of-Dry Season Watershed Behavior in a Highly Interconnected Alluvial Watershed, Northern California. Paper presented at the American Geophysical Union.
  • Type: Other Status: Other Year Published: 2023 Citation: Harter, T. (2023, April). Groundwater and Watershed Budgets in the Central Valley. Paper presented at the Water Education Foundation.
  • Type: Other Status: Other Year Published: 2023 Citation: Harter, T. (2023, April). Review of the Development of CV-NPSAT as a Tool to Assess Future Groundwater Nitrate Conditions in the Central Valley. Paper presented at the Central Valley Regional Water Quality Control Board.
  • Type: Other Status: Other Year Published: 2023 Citation: Harter, T. (2023, April). Water Rights in California. Paper presented at the Water Education Foundation.
  • Type: Other Status: Other Year Published: 2023 Citation: Harter, T. (2023, August). Comparison of Proposed Instream Flow Requirements to Anticipated Outcomes under Continuous Summer Curtailment and Unimpaired Conditions. Paper presented at the California State Water Resources Control Board.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Harter, T. (2023, August). Quantifying Long-Term Regional Groundwater Quality Benefits from Good Agricultural Practices. Paper presented at Healthy Land, Clean Water  78th Annual Meeting.
  • Type: Other Status: Other Year Published: 2023 Citation: Harter, T. (2023, February). Implementing the Sustainable Groundwater Management Act. Paper presented at the Belmont Forum INCLUSIVE Project, Taiwan Team.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Harter, T. (2023, January). AgMAR Effects on Shallow Groundwater Quality at the Orchard Scale. Paper presented at the USDA W4188 Soil Physics Workgroup.
  • Type: Other Status: Other Year Published: 2023 Citation: Harter, T. (2023, January). Governing California Groundwater under SGMA. Paper presented at the Young Dairy Leaders Program.
  • Type: Other Status: Other Year Published: 2023 Citation: Harter, T. (2023, June). Adapting to Climate Change: Sustainable Groundwater in Agriculture. Paper presented at the Workshop for the Board on Agriculture and Natural Resources.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Harter, T. (2023, June). INCLUSIVE: California Groundwater Management Case Study. Paper presented at Sustainability, Research, Innovation 2023  International Conference.
  • Type: Other Status: Other Year Published: 2023 Citation: Harter, T. (2023, June). Introduction to Groundwater Monitoring - sustainable groundwater quality management with a focus on agricultural landscapes. Paper presented at the California Water Quality Monitoring Council.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2022 Citation: Kisekka, I. (2022, November 7th). Sustainable Groundwater use in Agriculture. Paper presented at the 2022 International Conference on the Cooperation and Integration of Industry, Education Research and Application, Virtual.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Harter, T. (2023, June). Quantifying Long-Term Regional Groundwater Quality Benefits from Agricultural Practices. Paper presented at UCOWR.
  • Type: Other Status: Other Year Published: 2023 Citation: Harter, T. (2023, May). Nitrate, pesticides, and sustainable groundwater quality management in agricultural landscapes. Paper presented at the UCCE Ventura County, Thelma Hansen Symposium Future of Water in Agriculture.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2022 Citation: Kisekka, I. (2022, November 14-17). Predicting alfalfa yield and quality using FARMs. Paper presented at the World Alfalfa Congress, San Diego, California.
  • Type: Other Status: Other Year Published: 2023 Citation: Kisekka, I. (2022, October 22-27). Recycled water reuse for agricultural irrigation: sodicity and salinity impacts on soil and plants. Paper presented at the treWAG Recycled Water Reuse Symposium, Kibbutz Hagoshrim, Israel.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Kisekka, I. (2023). Multi-scale modeling of water and nitrate leaching to groundwater from irrigated agriculture using SWAT and Hydrus. Paper presented at the CWEMF Annual Meeting, April 17th, 2023, Folsom, CA.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Kisekka, I. (2023, February 7-8). Multi-site Evaluation of Stem Water Potential Sensors in Almonds. Paper presented at the 2023 California Plant and Soil Conference, Fresno, CA.
  • Type: Other Status: Other Year Published: 2023 Citation: Kisekka, I. (2023, January 23rd). Sustaining Groundwater and Irrigated Agriculture in the Southwestern United States under a Changing Climate (Groundwater Project). Stakeholder Meeting, Maricopa, Arizona.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Kisekka, I. (2023, January 3rd). Deep vadose zone monitoring of nitrate leaching to groundwater under Irrigated Agriculture. Paper presented at the W4188: Soil, Water, and Environmental Physics  2023 Annual Meeting, Las Vegas, NV.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Kisekka, I. (2023, March 8th). Sustaining Groundwater and Irrigated Agriculture in California under a Changing Climate. Keynote Speaker at the California Irrigation Institute 61st Annual Conference, Sacramento.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Kisekka, I., Hillyer, C., Lazcano, C., Zilberman, D., Ogunmokun, F., Longley, K., Jessoe, K., Nocco, M., Shukla, M., Brown, P., Megdal, S., Bradford, S., Ostoja, S., & Harter, T. (2022). Groundwater Sustainability and Food Production in the Southwest US. Paper presented at the ASABE AIM 2022, Omaha, Nebraska.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Kisekka, I., Hillyer, C., Lazcano, C., Zilberman, D., Ogunmokun, F., Longley, K., Jessoe, K., Nocco, M., Shukla, M., Brown, P., Megdal, S., Bradford, S., Ostoja, S., & Harter, T. (2023). Southwest Groundwater and Agricultural Sustainability. Paper presented at the UCOWR/NIWR Annual Water Resources Conference, June 13-15, 2023.
  • Type: Conference Papers and Presentations Status: Published Year Published: 2022 Citation: Nicolas, F., & Kisekka, I. (2022). A Field-Scale Groundwater Protection Formula Using an Integrated APEX-MODFLOW Model to Predict Nitrate Leaching into Unconfined Aquifers. Paper presented at the AGU Fall Meeting.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Nicolas, F., Kamai, T., Ben-Gal, A., Ochoa, J., Daccache, A., Ogunmokun, F., & Kisekka, I. (2023). Quantitative Modelling of the Impacts of Irrigation Water Salinity on Crop Yield and Profitability: Case Study of Groundwater Quality Used for Irrigation in California's Central Valley. Paper presented at the UCOWR/NIWR Annual Water Resources Conference, June 13-15, 2023.
  • Type: Other Status: Other Year Published: 2022 Citation: Nicolas, F., Raij-Hoffman, I., & Kisekka, I. (2022). An Integrated Agrohydrologic Groundwater Protection Formula for Field Scale Assessment of Nitrate Leaching. Paper presented at the SW Groundwater SAS Annual Symposium, November 2022, Davis, CA.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Norris-Parish, S. L., Petty, K., & Shukla, M. (2023, June). Innovative educational modules for sustaining groundwater and irrigated agriculture in the Southwest [Oral Presentation]. Paper presented at the Universities Council on Water Resources (UCOWR) Conference, Fort Collins, CO.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Ogunmokun, F., Osterman, G., Arboleda-Zapata, M., Li, X., Nicolas, F., Ward, K., & Kisekka, I. (2023). Evaluation of winter flooding as a management practice for mitigating boron toxicity in almond orchards. Paper presented at UCWOR.
  • Type: Conference Papers and Presentations Status: Submitted Year Published: 2023 Citation: Ogunmokun, F., Osterman, G., Nicolas, F., Li, X., Arboleda-Zapata, M., & Kisekka, I. (2023, submitted). Assessing the effectiveness of winter flooding in leaching Boron out of the root zone of Almond Orchards. Paper submitted to AGU Fall Meeting.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Ogunmokun, F., Osterman, G., Zapata, M., Li, X., Nicola, F., Ward, K., & Kisekka, I. (2023). Evaluation of Winter Flooding as a Management Practice for Mitigating Boron Toxicity in Almond Orchards. Paper presented at the 2023 UCOWR/NIWR Annual Water Resources Conference, Fort Collins, CO.
  • Type: Conference Papers and Presentations Status: Submitted Year Published: 2023 Citation: Osterman, G., Arboleda-Zapata, M., & Lambie, J. (2023, submitted). Reducing interpretation uncertainty in a 3D transient electromagnetic resistivity model using statistically based sampling locations for direct sampling of sediment texture and water content. Paper submitted to AGU Fall Meeting.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Parker, L., Zhang, N. (Presenter), McElrone, A., Kisekka, I., & Ostoja, S. (2023, June). Exposure to climate stressors for California winegrapes under a changing climate. Paper presented at the University Council on Water Resources Conference, Fort Collins, CO.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Petty, K., & Norris-Parish, S. L. (2022, November). Educational modules for groundwater sustainable and use [Poster Presentation]. USDA SAS Groundwater Annual Conference, Sacramento, CA.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Petty, K., & Norris-Parish, S. L. (2023, February). Muddy waters: Leveraging storytelling to teach water issues in the desert Southwest [Poster Presentation]. National Agricultural Communications Symposium (NACS), Oklahoma City, OK.
  • Type: Other Status: Other Year Published: 2023 Citation: Sapkota, A., Roby, M., Chen, C., & Kisekka, I. (2023, May). Assessing the effect of cover crops on soil respiration in an irrigated pistachio (Pistachio vera L.) orchard. Paper presented at the VIII International Symposium on Almonds and Pistachios, Davis, CA.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Kisekka, I., Raij-Hoffman, I., Ogunmokun, F., Bonfil, C., Lennon, W., Dahan, O., & Harter, T. (2023, August 6-9). Field Scale Assessment of Nitrate Leaching to Groundwater in the Central Valley Aquifer System. Paper presented at the Soil and Water Conservation Society (SWCS) Annual Conference, Des Moines, IA.
  • Type: Other Status: Other Year Published: 2023 Citation: Megdal S. B.. (2023, January 24). Sustaining Groundwater and Irrigated Agriculture in the Southwestern United States Under a Changing Climate: USDA-NIFA Project, Arizona Stakeholders Meeting. Maricopa Agricultural Center.
  • Type: Other Status: Other Year Published: 2022 Citation: Sharma, S. (2022). Hydrological Modeling using different precipitation datasets on a monthly basis at Rio-Grande Basin, NM. Paper presented at the Annual Symposium of SW Groundwater SAS, November 2-4, 2022.
  • Type: Other Status: Submitted Year Published: 2023 Citation: Sharma, S. (2023). Hydrological Modeling using different precipitation datasets on a monthly basis at Rio-Grande Basin, NM. Oral presentation at the Departmental Seminar, April 14, 2023.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Sharma, S., & Shukla, M. K. (2023). Hydrological Modeling at different stream gauges using different precipitation datasets on a monthly basis at Rio-Grande Basin, NM. Oral presentation at the UCOWR / NIWR Annual Water Resources Conference, June 14, 2023.
  • Type: Theses/Dissertations Status: Submitted Year Published: 2023 Citation: Sharma, S., Shukla, M. K., Bawazir, A. S., & Stringam, B. L. (2023). Hydrological Modeling using different precipitation datasets for watersheds in the Rio Grande Watershed of New Mexico, USA. Master's thesis, New Mexico State University, July 21, 2023.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Soriano, M., Quinn, N., Scudiero, E., Medina, R., & Benes, S. (2023, February 7-8). Can Satellite Time Series Data Discern Spatial Patterns in Dry Matter Yield in Jose Tall Wheatgrass Fields under High Salinity Conditions in the San Joaquin Valley of California? Paper presented at the California Plant & Soil Conference, Fresno, CA.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Soriano, M., Quinn, N., Scudiero, E., Medina, R., & Benes, S. (2022, April 20). Can Satellite Time Series Data Discern Spatial Patterns in Dry Matter Yield in Jose Tall Wheatgrass Fields under High Salinity Conditions in the San Joaquin Valley of California? Paper presented at the Central CA Research Symposium, California State University, Fresno, Fresno, CA.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Soriano, M., Quinn, N., Scudiero, E., Medina, R., & Benes, S. (2023, February 7-8). Can Satellite Time Series Data Discern Spatial Patterns in Dry Matter Yield in 'Jose' Tall Wheatgrass Fields under High Salinity Conditions in the San Joaquin Valley of California? Poster presentation at the California Plant & Soil Conference, California chapter of the American Society of Agronomy, Fresno, CA. (Student) Central CA Research Symposium, California State University, Fresno, April 20, 2022, Fresno, CA.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2022 Citation: WU, S., Zikalala, P. G., Alba, S., Segaran, M. A., Kisekka, I., Grismer, M. E., Lampinen, B., Shackel, K., Snyder, R. L., Sue Wing, I., & Monier, E. (2022). Climate Change Impacts and Adaptive Capacity for California Almonds. Paper presented at the AGU Fall Meeting.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Zhang, N., Parker, L., Ostoja, S., Kisekka, I., & McElrone, A. (2023). Exposure to Climate Stressors for California Winegrapes under a Changing Climate. Paper presented at the UCOWR/NIWR Annual Water Resources Conference, June 13-15, 2023.
  • Type: Other Status: Other Year Published: 2022 Citation: Zufall, E., Scott, T., & Lubell, M. (Year). A Structural Topic Model Analysis of Groundwater Sustainability Plans. Conference poster presented at the SW Groundwater SAS Annual Symposium.


Progress 09/01/21 to 08/31/22

Outputs
Target Audience:The target audience for the reporting period were groundwater managers, farm irrigation managers, growers, extension specialists, researchers, students, high school students, K-12 students and teachers at the urban-rural interface, Black, Indigenous, and People of Color (BIPOC) communities, youth via 4-H activities, Local, State and federal agencies (e.g. SWRCB, SWQCB, CDFA, DWR, CalEPA, NRCS, the Bureau of Reclamation, Groundwater Sustainability Agencies/GSAs, Arizona DWR, irrigation districts in New Mexico, Arizona, and California), policymakers, non-profit organizations (e.g. Sustainable Conservation, AgUnlimited, Global Water Policy, Community Water Center, California Water Foundation, Nature Conservancy, Almond Board of California, California Tomatoes Research Institute), engineers, the private irrigation industry and the general public. Changes/Problems: Nothing Reported What opportunities for training and professional development has the project provided?Training and professional developments provided by this project are listed as follows: Dr. Nocco - organized and met with several cooperative extension advisors and stakeholders to plan logistical efforts for grower education clinics focusing on soil health and water management to take place in winter and spring 2023. Additionally, Dr. Nocco provided technical support for science team members for the 4-H Water Wizards program launch and student field trip in May 2022, which involved innovative experiential learning exhibits to engage K-12 students. Dr. Lazcano - Established monthly team meetings to coordinate research activities and data collection with her lab group members. Dr. Benes - trained three students (Rito Medina, Mauricio Soriano, and Daniel Ruiz) on the use of the EM-38, an electromagnetic induction sensor used to map soil salinity in large fields, integration of GPS locations with Google Maps and the use of ArcGIS for the development of maps. Samuel Domingos Vilela was trained in field sampling and soil salinity measurement. Dr. Idowu - trained agricultural support professionals and farmers on how to prepare biochar from locally available wood wastes during the Biochar and Soil Health Field Day held on April 27th, 2022 at NMSU. Dr. Knight - trained a graduate student (Javier Peralta) on the handling of the tTEM system for his research. He has learned the proper methods for safely assembling the system, best practices regarding the acquisition of tTEM data, and troubleshooting when irregularities occur in the field. Additional training, outside of tTEM, has come in the form of exposure to numerous software (Aarhus Workbench, Leapfrog Geo, and Paraview), practice in coding (MATLAB and Python), and interpretation of electromagnetic data. Dr. Norris-Parish - as part of the education objective, developed 10 learning modules, which will open teaching resources and materials for agricultural science teachers to use in their K-12 classrooms. Dr. Norris-Parish is also developing teacher guides for how to best use the modules and implement them in K-12 agricultural education and science classrooms. Dr. Scott - is training Elise Zufall on how to conduct a wide variety of data processing functions in R language. This knowledge experience will be directly used in Elise's other dissertation research projects, which involve network and spatial data. Dr. Shukla - trained a graduate student on using the SWAT model to simulate the quality and quantity of surface and groundwater. Dr. Suvocarev - trained two graduate student researchers (one is covered by matching funds) who are doing research and learning about GHG measurements, soil sampling, extension, and outreach, etc. Dr. Thorp - participation in the AZ New Technologies Workshop provided an opportunity for Certified Crop Advisors to obtain continuing education credits. Also, Dr. Thorp co-advised the research of Sebastian Calleja, a University of Arizona Ph.D. student in Plant Science. Trained him on how to collect thermal drone imagery over the field site and tested a new setup for soil water content sensing. Dr. Medgal - Organized and hosted the WRRC Annual Conference, Arizona's Agricultural Outlook: Water, Climate, and Sustainability, in July 2022. Dr. Kisekka - trained 5 undergraduate students on irrigation and sensing. Also, currently mentoring four graduate students directly working on this project toward their Ph.D. degree. He is also mentoring two postdocs. Dr. Jessoe - mentored Jeffrey Hadachek. Samantha Poteet was hired as an undergraduate research assistant in the summer of 2022. Dr. Xu and Wang have developed curriculum modules in CE355V (Viewing the Wider World - Global Environmental Technologies) targeting undergraduate students regarding the sustainability of the food-water-agriculture-energy nexus. I addition she mentored and trained two graduate students and one postdoc to learn desalination technologies; prepare research articles and other scholarly publications/presentations. Dr. Zilberman - is mentoring Alice Huang toward her Ph.D. degree. How have the results been disseminated to communities of interest? Dr. Nocco - Coordination and support of cross-institutional analyses, grower education clinics, and technical support for the 4-H Water Wizards program launch in the East Bay Area. Dr. Idowu - organized a workshop for farmers and stakeholders. Dr. Norris-Parish - Modeled after the ReNUWIt and NSF ERC Center programs, coordinated opportunities designed to enhance the personal, professional, and career growth of participants, the mentorship program will seek opportunities to connect with first-generation, Native American, and Hispanic students to better reflect the demographics of each participating state. The mentorship pipeline will work with Fresno State University's WET Center to establish educational outreach materials and provide administrative oversight and technical guidance for the experiential learning program at the WET Center. In year one, we have identified the structure and recruitment strategy to reach out to these individuals Dr. Suvocarev - field demonstration of the use of a pressure chamber to measure stem water potential for several growers. Community outreach - Two other students and I attended the Women in Almond's brunch to talk about our research. Dr. Thorp - Provided an oral presentation entitled "New irrigation scheduling methods for cotton" for the University of Arizona Cooperative Extension, AZ New Technologies Workshop (6/2022), which was attended by approximately 40 local growers and agribusiness personnel. Dr. Xu - NMSU - We have hosted tours of state legislature representatives and other water professionals to visit our research projects. We gave a seminar at a local high school to introduce the challenges of water scarcity and strategies to address the sustainability in water, agriculture and energy. What do you plan to do during the next reporting period to accomplish the goals? Dr. Nocco - Most of the project milestones for year 1 have been achieved, although we experienced some delay in the hiring of the postdoctoral scholar.Progress toward achieving milestones according to planned activities Dr. Lazcano - Although we experienced a slight (one-month) delay in the hiring of the postdoctoral scholar we are on progress toward achieving milestones according to planned activities Dr. Ostoja & Parker - Many of our year 1 work plans were completed. However, the delay in hiring the postdoctoral fellow resulted in our year 1 plan to finalize our climate exposure analysis approach and assemble and curate climate and HUC data for the proposed climate exposure analysis is incomplete. This will be a priority for year 2. Additionally, we have yet to establish our committee of experts for providing feedback on the exposure analysis. Once our analysis approach is finalized, we will establish this committee and work with them to ensure that the selected scenarios and exposure variables align with their expert knowledge and experience. Dr. Dahlke - Dr. Bradford - The plan was to hire a postdoc with expertise in geophysics. The position was advertised but failed the first time. A suitable candidate was identified during the second round but the candidate is a graduate student finishing their degree, who won't start until November 2022. As a result, some of the geophysical work proposed in Year 1 was not completed. Dr. Hillyer - Year 1 activities were significantly delayed because of administrative issues associated with setting up accounts. These delays impacted each of the teams at Fresno State, as noted in their respective reports. With the exception of the delays in account setup, the administrative work specifically related to Task 1, Objectives 1 & 2, proceeded as expected. The above-mentioned delays were particularly problematic for the experiential learning program. The accounts were not set up until after the end of the Spring '22 term. This delay meant that no recruiting of students occurred until the start of the Fall '22 term. Dr. Knight - One component of the previous year's work plan, the acquisition of cone penetrometer testing (CPT) data at the Highway 132 site, and its corresponding deliverable, was not completed. The decision not to collect CPT data was made because of the abundance of existing well data at the site. The Stanford team wanted to first conduct an analysis of the tTEM data using these existing data, to determine if the additional CPT data would be of value. The team is currently evaluating whether collecting CPT data will improve the analysis of the site and will decide in the next few weeks. Dr. Suvocarev - Our plan to quantify full water balance was not achieved due to supply chain delays in delivering the material for building the structures for sensors, but water use of the crops was quantified during the peak seasonal values. For the same reasons CO2 measurements are delayed and we are still waiting for the sensors to be shipped. Dr. McPherson - We initiated and delivered approximately 70% of the total programming available to students due to challenges associated with COVID, hiring, and school closures. These challenges also impacted training, support, and programming staff, and advisors. Dr. Kisekka - Progress towards achieving milestones according to planned activities is being made. Dr. Harter - Progress is on schedule.

Impacts
What was accomplished under these goals? Obj. 1: Sustainable Agricultural System Climate Risk Assessment Conducted a survey of project PIs to assess their climate data and information needs.We facilitated two meetings with UC Merced Secure Water Future SAS project PIs to discuss projects and stay apprised of efforts to coordinate. Soil Health Analyzed the efficacy of regenerative practices to sequester C, improve infiltration and recharge in soils of semiarid climates and integrate these practices into new or existing decision support tools. Collected data on water use of almond orchards with different degrees of cover crops and grazing compared to a bare soil conventional control. We collected soil samples, soil moisture, and evapotranspiration data over 4 orchards. Our initial results show no clear impact of cover crops on the increased water use of the studied orchards. Conducted soil health trainingfor farmers and agricultural support professionals in New Mexico. Visited several growers in Arizona that have adopted different types of soil health practices. Water Management Weestablished the California Vadose Zone monitoring (VMS) network to measure nitrate leaching in the shallow and deep vadose zone.One (VMS) was installed in an almond orchard near Modesto CA and another in a citrus orchard near Fresno CA. We showed that the deep VMS could detect deep percolation and nitrate leaching after an atmospheric river in November 2022 produced heavy rainfall in Northern California (114 mm in 48 hours). We established eddy covariance flux tower sites to monitor water and CO2 fluxes in the pistachio orchards with and without cover crops in the San Joaquin and Sacramento Valleys. Conducted meta-analysis on the prediction of groundwater level using machine learning techniques. The aim is to document the advancements in this field and to evaluate the accuracy of various models using a rigorous systematic review protocol as described by the Center for Evidence-Based Conservation. Brackish groundwater desalination We conducted bench-scale experiments using selective electrodialysis to reduce the salinity of brackish water and selectively separate mono- and multi-valent ions to adjust the salt composition of product water for irrigation.In addition to laboratory experiments, we collaborated with the faculty and students at California State University Fresno to prepare a review paper on the sustainable distributed treatment of inland brackish water for agricultural uses. Nutrient and salinity management Nutrient management: Established 3 almond collaborator field sites, identification and preliminary data collection on 128 focus data trees including tree yields, soil sampling, and mapping, nutrient analysis, drone imagery, and interpretation were conducted. Salinity management: EM38 soil surveys were conducted and maps of salinity distribution in four selected fields were generated for the the San Joaquin River Improvement Project (SJRIP). The overall goal was to develop useful toolsfor the management of the SJRIP saline water reuse site so as to avoid extensive salt accumulation and sustain forage production. Obj. 2: Groundwater During Year 1, the Stanford team collected geophysical data and used these data to generate a 3D model of the underlying geology at Highway 132 site.Research approach, plans, and relevant information were presented in stakeholder meetings with individual growers. The program flyer was developed and distributed at the Agribusiness and Water Council Annual Conference 2022. Collected data on water and salinity for the Rio Grande basin initiative. We not only collected the discharge data, climate data, and groundwater salinity data for the Rio Grande basin but also collected the data for the Mimbres River watershed and developed aSWAT model using different datasets. We started developing a SWAT model for the Pinal Active Water Management Area in Arizona that will be linked to a MODFLOW-based groundwater model from the Arizona Department of Water Resources to study the impact of irrigated agriculture on groundwater quantity and quality. Obj. 3: Socioeconomics In year 1, the governance sub-team made a full-text database of groundwater management plans statewide (CA), created a database of management agency features and operational contexts, and wrote a paper that analyzes agencies' focus on key policy issues like environmental justice and drinking water protection. We have assembled a dataset on the population of registered wells in California, self-reported well failures, well depth and weather. We are beginning to analyze these dataand will augment them as needed. We analyzed data on the use of CIMIS California Irrigation Management Information System. We found that the current uses of the California Irrigation Management Information System (CIMIS) in terms of economic impact are significant, and suggested potential strategies for future implementation. Obj. 4: Education Designed and created the outlines for the proposed HydroLearn educational modules. Through a systematic analysis of available online water educational resources designed for students at the secondary school level, we narrowed the primary blocks of modules to relate to groundwater, irrigation, and climate change.The 10 proposed learning modules, will elaborate on ideas such as why is groundwater valuable, highlighting current issues and policies; types of groundwater; groundwater overdraft; contamination; recharge; an overview of irrigation; irrigation best management practices; irrigation systems; the influence of climate change on agricultural irrigation/groundwater; and impacts of drought.The primary accomplishment of this objective is identifying the primary educational objectives to design the curriculum and testing the usage of the HydroLearn learning management system. Obj. 5: Extension Established the Water Wizards program in California. Field day involving elementary school children was done as Elkus ranch. Produced podcasts related to water and agriculture. Extension activities were conducted in Arizona and New Mexico. Project Evaluation: The team conducted a survey among project team members and produced a report on collaboration among project participants.

Publications

  • Type: Journal Articles Status: Published Year Published: 2022 Citation: Emami, M., A. Ahmadi, A. Daccache, S. Nazif, S.-F. Mousavi, and H. Karami (2022), County-Level Irrigation Water Demand Estimation Using Machine Learning: Case Study of California, Water 2022, Vol. 14, Page 1937, 14(12), 1937, doi:10.3390/W14121937.
  • Type: Journal Articles Status: Published Year Published: 2022 Citation: "Parker, L. E., N. Zhang, J. T. Abatzoglou, S. M. Ostoja, and T. B. Pathak (2022), Observed Changes in Agroclimate Metrics Relevant for Specialty Crop Production in California, Agron. 2022, Vol. 12, Page 205, 12(1), 205, doi:10.3390/AGRONOMY12010205.
  • Type: Journal Articles Status: Published Year Published: 2022 Citation: Peddinti, S. R., and I. Kisekka (2022), Effect of aggregation and disaggregation of land surface temperature imagery on evapotranspiration estimation, Remote Sens. Appl. Soc. Environ., 27, 100805, doi:10.1016/J.RSASE.2022.100805.
  • Type: Journal Articles Status: Published Year Published: 2022 Citation: Peddinti, S. R., and I. Kisekka (2022), Estimation of turbulent fluxes over almond orchards using high-resolution aerial imagery with one and two-source energy balance models, Agric. Water Manag., 269, 107671, doi:10.1016/J.AGWAT.2022.107671.
  • Type: Journal Articles Status: Published Year Published: 2022 Citation: Vanella, D., S. R. Peddinti, and I. Kisekka (2022), Unravelling soil water dynamics in almond orchards characterized by soil-heterogeneity using electrical resistivity tomography, Agric. Water Manag., 269, 107652, doi:10.1016/J.AGWAT.2022.107652.
  • Type: Journal Articles Status: Published Year Published: 2022 Citation: Raij-Hoffman, I., Kenneth Miller, George Paul, Yohannes Yimam, Sushant Mehan, John Dickey, Thomas Harter, I. Kisekka. 2022. Modeling water and nitrogen dynamics from processing tomatoes under different management scenarios in the San Joaquin Valley of California. Journal of Hydrology: Regional Studies. 43. 101195, doi.org/10.1016/j.ejrh.2022.101195.
  • Type: Journal Articles Status: Published Year Published: 2022 Citation: Kisekka, I., Peddinti, S.R., Kustas, W.P. et al. Spatialtemporal modeling of root zone soil moisture dynamics in a vineyard using machine learning and remote sensing. Irrig Sci 40, 761777 (2022). https://doi.org/10.1007/s00271-022-00775-1
  • Type: Journal Articles Status: Published Year Published: 2022 Citation: Thorp, K. R., S. Calleja, D. Pauli, A. L. Thompson, and D. E. Elshikha (2022), Agronomic Outcomes of Precision Irrigation Management Technologies with Varying Complexity, J. ASABE, 65(1), 135150, doi:10.13031/JA.14950.
  • Type: Journal Articles Status: Published Year Published: 2022 Citation: Henri, C.V. and T. Harter, 2022. Denitrification in heterogeneous aquifers: Relevance of spatial variability and performance of homogenized parameters. Adv. in Water Resour. 164, 104168, https://doi.org/10.1016/j.advwatres.2022.104168
  • Type: Journal Articles Status: Published Year Published: 2022 Citation: Edwards, E.C., C. Nelson, T. Harter, C. Bowles, X. Li, B. Lock, G.E. Fogg, B. S. Washburn, 2022. Potential effects on grouwdater quality associated with infiltrating stormwater through dry wells for aquifer recharge. J. Contam. Hydrol. 246, https://doi.org/10.1016/j.jconhyd.2022.103964
  • Type: Journal Articles Status: Published Year Published: 2022 Citation: Greenhalgh, S., K. Mueller, S. Thomas, M.L. Campbell, and T. Harter, 2022. Raising the voice of science in complex socio-political contexts: an assessment of contested water decisions. J. Env. Policy & Planning 24(2):242-260, https://doi.org/10.1080/1523908X.2021.2007762