University of California

Field studies of irrigation efficiency in the Imperial Valley


J. D. Oster
J. L. Meyer
L. Hermsmeier
M. Kaddah

Authors Affiliations

J. D. Oster was a soil and water specialist, Cooperative Extension, University of California, Riverside, CA 92521; J. L. Meyer was an irrigation and soils specialist, Cooperative Extension, University of California, Riverside, CA 92521; L. Hermsmeier was an agricultural engineer (retired), USDA-ARS, Irrigation Desert Research Station, 4151 Highway 86, Brawley, CA 92227; M. Kaddah was a consultant, Soil Productivity Lab, 4784A, Highway 111, Brawley, CA 92227.

Publication Information

Hilgardia 54(7):1-15. DOI:10.3733/hilg.v54n07p014. October 1986.

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Irrigation return flows to the Salton Sea originating from on-farm and conveyance losses are potential water sources that could be used by the Imperial Irrigation District (IID) to increase the irrigated area in the Imperial Valley or by other California users of Colorado River water. An on-farm irrigation study conducted by USDA-ARS and IID between 1977 and 1981 provided estimates of on-farm return flows originating from runoff and drainage, as well as crop water and leaching requirements. Recovery of all runoff water without any change in cropping practices would yield about 0.4 km3/y. All but 0.1 km3/y of this runoff water would be needed on-farm, if irrigation practices were changed so that crop water and leaching requirements were fully met without recycling drainage water for irrigation. If drainage water were recycled, only 0.1 km3/y would be needed, leaving 0.3 km3/y which could be used elsewhere. Combining these estimates of recoverable water with those for recoverable conveyance losses from IID operations of 0.3 km3/y results in a total which ranges from 0.4 to 0.6 km3/y. This brackets the maximum reduction in Colorado River water available to California after full implementation of the Central Arizona Project.

Literature Cited

Bureau of Reclamation, Lower Colorado Region. Water conservation opportunities, Imperial Irrigation District, California. Hearing testimony. 1983. El Centro, CA: California Water Resource Control Board, Imperial Irrigation District Auditorium. Sept. 27-29

California Department of Water Resources, Southern District. Use of water by Imperial Irrigation District 1981. 209O. Box 6598, Los Angeles, CA 90055

Chang A. C., Skaggs R. W., Hermsmeier L. F., Johnston W. R. Evaluation of a water management model for irrigated agriculture. Trans. ASAE. 1983. 26:412-18. 422

Donovan T. J., Meek B. D. Alfalfa response to irrigation treatment and environment. Agron. J. 1983. 75:461-64.

Erie L. J., French O. F., Harris K. Consumptive use of water by crops in Arizona 1965. p.44. Univ. Ariz. Agric. Exp. Stn. Tech. Bull. No. 169

Hermsmeier L. F. Shallow drain performance in a heavy soil. Trans. ASAE. 1973. 16:92-94. 96

Kaddah M. T., Rhoades J. D. Salt and water balance in Imperial Valley, California. Soil Sci. Soc. Am. J. 1976. 40:93-100. DOI: 10.2136/sssaj1976.03615995004000010026x [CrossRef]

Larson C. L., Hermsmeier L. F. Device for measuring pipe effluent. Agr. Eng. 1958. 39(5):282-85. 287

Letey J., Vaux H. J. Jr., Yitayew M., Feinerman E., Handley D., Hash P. An evaluation of water duties for California Agriculture 1983. Project report, Agreement 2-043-0300-0. California State Water Resources

Lonkerd W. E., Ehlig C. F., Donovan T. J. Salinity profiles and leaching fractions for slowly permeable irrigated field soils. Soil Sci. Soc. Am. J. 1979. 43:287-89.

Maas E. V., Hoffman G. J. Crop salt tolerance—current assessment. J. Irrig, and Drainage Div. ASCE. 1977. 103(IR2):115-34.

MacGillivray N. A. Estimated crop evapotranspiration in the Imperial Valley, California 1980. Appendix A in Inouye, D. (undated), Crop water requirements, Imperial Valley. Draft Technical Information. Record Study Code No. 1489-23-D-1. California State Water Resources, Southern District Planning Branch

Oster J. D., Rhoades J. D. Calculated drainage water compositions and salt burdens resulting from irrigation with river waters in the western United States. J. Environ. Qual. 1975. 4:73-79.

Rhoades J. D. Reclamation and management of salt-affected soils after drainage 1982. Proc. of the First Annual Western Provincial Conf. Rationalization of Water and Soil Res. and Management. Lethbridge, Alberta, Canada, Nov. 29-Dec. 2

Robinson F. E., Luthin J. N. Comparison of three commercial drain tiles in a heavy clay soil of the Imperial Valley. Calif. Agric. 1968. 22(8):10-11.

Stavins R. Trading conservation investments for water: A proposal for the Metropolitan Water District of Southern California to obtain additional Colorado River water by financing water conservation investments for the Imperial Irrigation District. 1983. Berkeley, CA: Environmental Defense Fund, Inc. 198p. 2606 Dwight Way, 94704

Zimmerman R. P. Soil survey of Imperial County, California, Imperial Valley area. 1981. USDA Soil Cons. Serv. in cooperation with Univ. of Calif. Agric. Exp. Stn. and IID.

Oster J, Meyer J, Hermsmeier L, Kaddah M. 1986. Field studies of irrigation efficiency in the Imperial Valley. Hilgardia 54(7):1-15. DOI:10.3733/hilg.v54n07p014
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