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Show PART VI FRAMEWORK PLAN AND ALTERNATIVES The capacity of electric powerplants would be about 19 times as great by 2020 as in 1965. Local use plus reserve will require about 18 percent of the total generation. Value of mineral production in the region is expected to increase from $5^3 million in 1965 to $2,01^ million in 2020. New Proposals in Framework Plan Agriculture Potential programs for increasing production of crops and livestock and livestock products include developing new irrigated land and increas- ing production on the present irrigated, dry cropland, and grazing lands. These programs, together with those for timber, are tabulated in Tables 6 and 7. Irrigated Cropland Development Irrigated cropland would increase from the present base of about 1.6 million acres to approximately 2.1 million acres. New irrigated land to- taling 587,000 acres will be needed by 2020 to meet additional needs and replace 87,000 acres lost to urbanization and other uses. Present lands will be developed for increased production by structural, cultural, and management practices. Increased production on presently irrigated lands would be obtained by development of supplemental water for U21,000 acres, drainage of ^375OOO acres, irrigation system improvement on 9H5°°O acres, increased water-use efficiency, and use of improved cultural management practices. Participating projects of the Colorado River Storage Project author- ized or funded for construction, in advance planning, or under precon- struction studies would develop water for 36^,000 acres of new irrigated land and supplemental water for 253?OOO acres. This includes 110,600 acres of new irrigated land in New Mexico for the Navajo Indians. In addition, selected potential participating projects of the CRSP would bring into production 136,000 acres of new irrigated land and frir- nish supplemental water to 735OOO acres. Non-Federal development would bring into production 87,000 acres of new irrigated land and furnish supplemental water to 95?OOO acres pres- ently being irrigated. Ninety reservoirs with a storage capacity of 2.1 million acre-feet would be built for the primary purpose of supplying irrigation water. 61 |