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<br />o <br />,.... <br />..... <br />v'l <br />QO <br /> <br /> <br />development, primarily multipurpose, are expected to provide an addi~ <br />tional 1.02 million man~days annually by 2020. To satisfy fishing <br />demands not met by the above developments, the fish and wildlife program. <br />provides for additional fishery developments in 1980, 2000, and 2020 <br />that would provide a total of 16.0 million man-days of fishing annually <br />by year 2020. <br /> <br />The demand for hunting is expected to increase from a 1965 level of <br />1.3 million man-days to 5.1 million man-days annually in 2020. A <br />primary concern in satisfying the demands for wildlife resources is the <br />preservation and improvement of existing habitat. In the Lower <br />Colorado Region, most of the valuable wildlife habitat is on lands <br />administered by public agencies, thus providing significant opportunities <br />for further wildlife development. Satisfying a part of the demand for <br />fish and wildlife resources and achieving optimum multiple-use of <br />public lands is dependent upon improving the existing habitat and <br />accelerating development to increase fish and wildlife production. <br /> <br />Also, satisfying future demands for fish and wildlife resources <br />will require that 11.8 million acres of selected areas consisting <br />mostly of public lands be managed to yield maximum fish and wildlife <br />values. The areas would be managed with emphasis directed to the <br />production ,of fish and wildlife, with appropriate consideration of <br />compatible and/or complementary uses. The construction of access facil- <br />ities and numerous wildlife watering facilities is included in the fish <br />and wildlife program.. <br /> <br />Electric Power <br /> <br />Electric power requirements are expected to increase by fortyfold <br />between 1965 and 2020. These requirements would need to be met par- <br />tially by construction of power racilities within the Region and <br />partially by imports from other areas. The regional water requirement <br />for power production would, increase from 9,600 acre-feet in 1965 to <br />434,700 acre-feet by year 2020. The increased water use would be <br />supplied Largely by imported water supplies. <br /> <br />i <br />f <br />t <br />r <br /> <br />I <br /> <br />Environmental Considerations <br /> <br />The comprehensive nature and interrelationship of environmental <br />problems have recently become widely recognized. The Region's rapid <br />population growth rate, its concentration in only a few locations, the <br />fragile nature of the desert environment, and the extremely limi,ted <br />water supplies, require particular attention to the environmental impacts <br />which may occur as the result of development necessary to insure the <br />well-being of the people of the Region. Such considerations have been <br />of paramount concern to planners in nearly every phase of the framework <br />studies. Main items of concern include: preservation of cultural, <br />scenic, and natural values; protection and management of land resources; <br /> <br />vi <br /> <br />