Water Use Estimation for Some Major Crops in Georgia Using Geospatial Modeling
Author(s)
Boken, Vijendra K.
Hoogenboom, Gerrit
Guerra, Larry C.
Hook, James E.
Thomas, Daniel L.
Harrison, Kerry A.
Advisor(s)
Editor(s)
Hatcher, Kathryn J.
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Abstract
Agricultural water use estimation can contribute to finding a satisfactory solution of the water dispute among the states of Alabama, Florida, and Georgia. In this paper, the depths of irrigation for cotton, peanut, corn, and soybean are estimated for the Flint, Central, and Coastal water zones of Georgia for 2000, 2001, and 2002. In addition, the volume of irrigation for these crops are estimated for 2000 and 2001. The estimation was based on the spatial interpolation of the data collected under the Agricultural Water Pumping project. The interpolation techniques included the inverse distance weighting, local polynomial, global polynomial, radial basis function, ordinary kriging, and universal kriging. The total volume of irrigation was highest for the Flint zone (578.4 Mm3 ), followed by the Central zone (296.3 Mm3 ) and the Coastal zone (103.0 Mm3 ) for 2000. For 2001, the irrigation volume declined by 41% for the Flint zone, 31% for the Central zone, and 20% for the Coastal zone.
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Date
2003-04
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Text
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Proceedings