Saturday 1 June 2019

arcgis desktop - Using National Agriculture Statistics Service (NASS) county level crop data to estimate crop acreage in hydrologic regions?


National Agriculture Statistics Service (NASS) provides county level crop (Corn, Soybean, Sorghum, etc) data. I want to calculate crop acres on each subwatershed from the county based data.


I'm using ArcGIS 9.3. I created a join in ArcGIS with the spreadsheet I acquired from NASS. The county level crop data is a shapefile. Watershed (subwatershed) boundaries is also in a shapefile format.


What is the best way to deal with this situation?




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