Progress 10/01/19 to 09/30/20
Outputs
Target Audience:Hawaii State Department of Agriculture Changes/Problems:Assessing the extent of cultivable land areas is a new component of the project. We felt understanding the current actual land use would be an important element of the project in order to evaluate the utility of land resources. What opportunities for training and professional development has the project provided?
Nothing Reported
How have the results been disseminated to communities of interest?Teleconference What do you plan to do during the next reporting period to accomplish the goals? We plan to delineate the areas within the state that were used for production agriculture, but are currently idle, thus suitable for crop growth. We plan to identify a list of crops that can grow well on those identified idle lands using a GIS-bases suitability modeling approach.
Impacts
What was accomplished under these goals?
We obtained satellite image time series data acquired in 2019 and 2020 with a new satellite series (the Sentinel-2 series) over the Northshore region of Oahu and assessed the latest agricultural land use patterns in the region. We identified an increase in cultivated land areas from the areas reported by the State's 2015 Agricultural Land Use Baseline. Also, we identified significant acreage that are classified as agriculture are not currently cultivated. All of these areas were found suitable to grow fresh produce such as lettuce.
Publications
- Type:
Journal Articles
Status:
Published
Year Published:
2020
Citation:
Mausio, K., Miura, T., and Lincoln, N.K. 2020. Cultivation potential projections of breadfruit (Artocarpus altilis) under climate change scenarios using an empirically validated suitability model calibrated in Hawaii. PLoS ONE, 15(5), e0228552. doi:10.1371/journal.pone.0228552
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2020
Citation:
Miura, T. and Loke, M. 2020. Vegetable production potential in Oahu, Hawaii with an integrated use of Sentinel-2 time series and GIS modeling. Presented at IGARSS 2020, Virtual Symposium, 26 September-2 October. WE1.R11.1
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Progress 10/01/18 to 09/30/19
Outputs
Target Audience:Hawaii State's Department of Agriculture. Changes/Problems:
Nothing Reported
What opportunities for training and professional development has the project provided?A graduate student hired by the project was able to improve his understanding and skills on programming in R. How have the results been disseminated to communities of interest?
Nothing Reported
What do you plan to do during the next reporting period to accomplish the goals?(1) We plan to validate the derived suitability maps. These maps are spatial projection of the optimum growth condition extracted from the FAO database. They will need to be validated. (2) We plan to start analyzing high resolution satellite image time series data to understand actual agricultural land use of the "Important Agricultural Land" areas on the Northshore region of the Oahu Island. There is no clear understanding how farmers use their lands for agricultural activities. (3) We will overlay the suitability maps on the satellite image analysis results so as to be able to provide a list of recommended crops that would grow well in the region.
Impacts
What was accomplished under these goals?
The land suitability model we previously developed was re-coded in R languages. The R version of the model was ran for 31 crops for the main Hawaiian islands. Outputs are in map form and depict suitability of growing each of 31 crops on any land area on Hawaii.
Publications
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Progress 10/01/17 to 09/30/18
Outputs
Target Audience:CTAHR extension faculty; state agricultural and resource management professionals; prospective farmers across the State; Hawaii Department of Agriculture. Changes/Problems:We have decided to push back our future scenario modeling. Several researchers have been working to re-generate future climate conditions over Hawaii based on the new Representative Concentration Pathway (RCP); however the currently available projections are of resolution too low to be useful in our land suitability analysis. What opportunities for training and professional development has the project provided?One graduate student used this opportunity to advance his understanding and knowledge of geospatial data analysis. Another graduate student used this opportunity to advance her understanding of geospatial data structures and how to conduct numerical experiment. How have the results been disseminated to communities of interest?One of the two graduate students presented results of the project at the 2018 Association of American Geographers (AAG) annual conference and gave a couple of public seminars. What do you plan to do during the next reporting period to accomplish the goals?We plan to develop a validation protocol for land suitability modeling results. We plan to run land suitability analysis models for multiple crop species and delineate the agricultural land of importance which is the land area that can support multiple crop species.
Impacts
What was accomplished under these goals?
We finalized a crop list which includes optimum crop ecological ranges for ~50 crop species considered common and important to the State's agriculture. We finalized the population of a geo-database that contains state-wide geophysical environmental datasets needed to perform land suitability modeling.
Publications
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