Journal
AMERICAN JOURNAL OF AGRICULTURAL ECONOMICS
Volume 101, Issue 2, Pages 455-466Publisher
OXFORD UNIV PRESS INC
DOI: 10.1093/ajae/aay062
Keywords
Groundwater; High Plains Aquifer; irrigation response; production function; yields.
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Funding
- Daugherty Water for Food Global Institute at the University of Nebraska
- Nebraska Agricultural Experiment Station
- Hatch Multistate Research capacity funding program from USDA National Institute of Food and Agriculture [NEB 1011054, NEB 227784]
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This study provides an estimate of the gross value of irrigation water from the U. S. High Plains Aquifer. We estimate a yield function for aggregated crop biomass production, based on countylevel observations for 1960- 2007. This study found that irrigation increases total biomass yield in this region by an average of 51%. We estimate the average gross annual value of irrigation as of 2007 to be $ 196 per acre, for a total of about $ 3 billion across the aquifer. We also estimate that on average across the aquifer, exposure to 24 hours of temperatures above 33 C ( one degree day) reduces biomass yield by 3%, with a value in 2007 of about $ 10 per acre.
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