OCR Text |
Show LAND There are sufficient suitable lands for each land use when considered separately, but even with the widespread adoption of the multiple-use principles, not all of the requirements may be fulfilled. Competition among land uses is expected to intensify during the study period, causing shifts in land use. Because of the rapid population growth in recent years, major shifts in land use have already occurred adjacent to the major cities in the Region, In the Phoenix area, most urban expansion has been on formerly productive irrigated cropland. Mature citrus groves and land used to grow winter vegetables are being replaced by housing developments. This cropland is replaced by developing rangeland in out- lying areas at great expense. The following table lists 1965 land use and projected land require- ments by time frame for each function or land use: Table 6 Present Use and Projected Land Requirements Unit: 1,000 Acxes Use 1965 1980 2000 2020 Cropland I,8l6 1,891 1,905 1,652 Irrigated (1,785) (1,863) (1,882) (1,633) Nonirrigated (3D (28) (23) (19) Livestock Grazing 76,054 73,739 69,902 65,607 Timber Production 5,458 5,358 5,153 5,O44 Urban and Industrial 513 863 1,230 1,564 Outdoor Recreation (designated) 5,542 5,888 6,012 6,146 Wilderness Areas 861 1,458 3,158 3,458 Fish and Wildlife (designated) 3,223 3,546 7,175 15,020 Military 4,126 4,126 4,126 4,126 Transportation and Utilities 660 858 1,030 1,145 Mineral Production 75 115 156 223 Water Yield Improvement 114 289 824 1,229 Flood Control 77 229 289 336 73 |