OCR Text |
Show and unpublished, dealing with net water requirements and consumptive use. One of the definitions suggested by this committee follows: "Consumptive Use in a Basic Sense: The consumptive use, 'U/ is here defined as the quantity of water, in acre-feet per cropped acre per year, absorbed by a crop and transpired or used directly in the building of plant tissue, together with that evaporated from the crop-producing land." In a report6 in 1930 on rainfall penetration and consumptive use of water, consumptive use was defined as "the sum of water used by the vegetative growth of a given area in transpiration or building of plant tissue and that evaporated from the area." In 1934, the Committee on Absorption and Transpiration, Hydrology Section, American Geophysical Union, proposed the following definition:7 "Consumptive Use: The quantity of water per annum used by either cropped or natural vegetation in transpiration or in the building of plant-tissue, together with water evaporated from the adjacent soil, snow, or from intercepted precipitation. It is sometimes termed 'evapo-transpiration.' " ^"Rainfall Penetration and Consumptive Use of Water In Santa Ana River Valley and Coastal Plain," by Harry F. Blaney, Colin A. Taylor, and Arthur A. Young, Bulletin No. 33, Div. of Water Resources, California State Dept. of Public Works, Pomona, Calif.. 1930. ^'Transactions of the American Geophysical Union," National Research Council of the National Academy of Sciences, Washington, D. C, June, 1934, Part II. |
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Original book: [State of Arizona, complainant v. State of California, Palo Verde Irrigation District, Coachella Valley County Water District, Metropolitan Water District of Southern California, City of Los Angeles, California, City of San Diego, California, and County of San Diego, California, defendants, United States of America, State of Nevada, State of New Mexico, State of Utah, interveners] : California exhibits. |