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<br />IRRIGATION <br />LAND <br />REQUIREMENTS <br />AND LAND USE <br />CHANGES <br /> <br />2,500,000 <br /> <br /> <br />001154 <br /> <br />LAND <br />LOST TO <br />OTHER USES <br /> <br /> <br />DNEW <br />CROPLAND <br />NEEDED <br />LAND <br />DEVELOPED <br />FOR <br />IRRIGATION <br /> <br />1965 1965-1980 1980-2000 2000-2020 <br />YEAR <br />Illustration 18 <br /> <br />PROJECTED RANGELAND USE AND PRODUCTION <br /> <br /> <br /> 5 <br />~ , <br />w ~ <br />~ " <br />u 4 ~ <br />~ ~ <br />~ ~ <br />0 0 <br />~ ~ <br />Z Z <br />0 3 0 <br />::; ::; <br />~ ~ <br />" " <br /> 2 <br /> <br /> <br />1965 <br /> <br />1980 <br /> <br />2020 <br /> <br />~-AUM (Animal Unit Month) is the amount of forage needed to feed one cow for one month. <br /> <br />Illustration 19 <br /> <br />21 <br />