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RUNOFF IMPOUNDMENT FOR SUPPLEMENTAL IRRIGATION IN TEXAS 1
Author(s) -
Krishna J. H.,
Arkin G. F.,
Martin J. R.
Publication year - 1987
Publication title -
jawra journal of the american water resources association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.957
H-Index - 105
eISSN - 1752-1688
pISSN - 1093-474X
DOI - 10.1111/j.1752-1688.1987.tb00855.x
Subject(s) - surface runoff , environmental science , irrigation , agriculture , water resource management , acre , hydrology (agriculture) , farm water , crop , agricultural economics , water conservation , agroforestry , agronomy , geography , forestry , engineering , ecology , geotechnical engineering , archaeology , biology , economics
The current increase in the demand for water by municipal, industrial, and other users is likely to result in approximately one‐third less water being available for agricultural use in Texas by the year 2000. As water supplies diminish, the rainfall excess needs to be used more efficiently. Large amounts of runoff occur in the eastern part of Texas that could be collected in small impoundments and utilized for crop production. Farmers in water‐surplus basins or subbasins can apply for a permit to divert surface water into small on‐farm impoundments to be used for supplemental irrigation. The costs for runoff collection and two supplemental irrigations, which amount to a total of 4 in./yr., are estimated to be approximately $60/acre/year. Depending upon the crop produced, the estimated increase in gross income from supplemental irrigation ranges from about $80 to more than $100 per acre annually.