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<br />16 <br /> <br />Extensive field investigations were carried out as part of the Colorado River Basin Water <br />Quality Control Project to determine the location, magnitude, and causes of interstate <br />pollution of the Colorado River and its tributaries. The damages caused by mineral <br />pollution were evaluated and programs were recommended for control of interstate water <br />pollution. <br /> <br />81. Blackwelder, E. 1934. Origin of the Colorado River. Geol. Soc. Am. Bull. 45: 551-566. <br /> <br />GEOLOGY, RIVER-Colorado <br /> <br />Discussion of the origins of the Colorado River after the late Miocene. <br /> <br />82. Blaney, H. F. 1961. Consumptive use and water waste by phreatophytes. Am. Soc. Civil <br />Eng., Irrig. Drain. Div. 87(3): 34-46. <br /> <br />VEGETATION, WATER QUALITY <br /> <br />Water losses by phreatophytes are most acute in areas in which water supplies are limited. <br />It is estimated that these plants consume nearly 25 million acre-ft. of water annually in <br />the western United States. Measurements of consumptive use and 'estimates of consumptive <br />waste that might be salvaged fo~beneficial use are presented. <br /> <br />83. Blaney, H. F., and W. D. Criddle. 1962. Determining consumptive use and irrigation <br />water requirements. U. S. Dep. Agric. Tech. Bull. 1275. 59 pp. <br /> <br />IRRIGATION, WATER RESOURCE <br /> <br />The climatic factors believed to have the greatest effect on consumptive use, on which <br />data are generally available, are temperature, precipitation, humidity, wind movement, and <br />growing season. Irrigation practices, as well as kind of crops grown, their stage of <br />growth, and species, also influence the amount of water consumed. This report gives an <br />empirical formula for the relation between temperature, length of growing season, monthly <br />percentage of annual daytime hours, and consumptive use of water. From this relation, <br />consumptive use of water by crops and natural vegetatiou, and irrigation requirements, <br />can readily be estimated for any area where the basic climatological data are available. <br /> <br />84. Boeker, H. M. 1953. Waterfowl production in the Yampa River Valley, Colorado. M. S. <br />Thesis, Colorado State Univ., Fort Collins. 117 pp. <br /> <br />RIVER-Yampa, WILDLIFE <br /> <br />Study of waterfowl produced on the Yampa River. <br /> <br />85. BoIke, E. L. 1976. Chemical and physical data for the Flaming Gorge Reservoir Area. Utah <br />and Wyoming, 1973-75. U. S. Geol. Surv., Salt Lake City, Utah, Utah Basic Data <br />Release 27. 35 pp. <br /> <br />HYDROLOGY, RESERVOIR, RIVER-Green, WATER QUALITY <br /> <br />Summary of chemical and physical data for Flaming Gorge Reservoir in 1973-75. <br /> <br />86. <br /> <br />BoIke, E. L., and K. M. Waddell. 1972. <br />area, Utah and Wyoming, 1969-72. <br />Basic-Data Release 24. 50 pp. <br /> <br />Water-quality data for the Flaming Gorge Reservoir <br />U. S. Geol. Surv., Salt Lake City, Utah. Utah <br /> <br />HYDROLOGY, RESERVOIR, RIVER-Green, WATER QUALITY <br /> <br />Summary of basic water quality data collected by the U. S. Geological Survey in Flaming <br />Gorge Reservoir from October 1970 to September 1972. <br />