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Updated: Jun 28, 2025

Semi-High Throughput Screening for Potential Drought-tolerance in Lettuce Lactuca sativa Germplasm Collections
Published on: April 17, 2015
Total irrigation by crop in the Continental United States from 2008 to 2020
P J Ruess1, Megan Konar2, Niko Wanders3
1Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, Urbana, USA.
Abstract:
We provide a dataset of irrigation water withdrawals by crop, county, year, and water source within the United States. We employ a framework we previously developed to establish a companion dataset to our original estimates. The main difference is that we now use the U.S. Geological Survey (USGS) variable 'irrigation - total' to partition PCR-GLOBWB 2 hydrology model estimates, instead of 'irrigation - crop' as used in previous estimates. Our findings for Surface Water Withdrawals (SWW), total Groundwater Withdrawals (GWW), and nonrenewable Groundwater Depletion (GWD) are similar to those of prior estimates but now have better spatial coverage, since several states are missing from the USGS 'irrigation - crop' variable that was originally used. Irrigation water use increases in this study, since more states are included and 'irrigation - total' includes more categories of irrigation than 'irrigation - crop'. Notably, irrigation in the Mississippi Embayment Aquifer is now captured for rice and soy. We provide nearly 2.5 million data points with this paper (3,142 counties; 13 years; 3 water sources; and 20 crops).
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