<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 />
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