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<br />w <br />00 <br />c.T1 <br />l-'- <br /> <br />, <br /> <br />is essentially a consumer of water produced im the upper basin states. <br /> <br />Full development of the land resources in the upper basin and the lower basin <br /> <br />, <br /> <br />might change the cha~ter:of the river'..from that of a water supply to that <br /> <br />of a water disposal system. Under these circumstances the water supply <br /> <br />" <br /> <br />for the total area. would be carried in man-made channels and the river <br /> <br />would function as a drain. Development of the agricultural resources of <br /> <br />the area will require full and complete utilization, not only of the water in <br /> <br />" <br /> <br />the Colorado River, but water from possible other sources as well. <br /> <br />RangEoland. Rangeland is a land use classification which includes several <br /> <br />" <br /> <br />specific non-forested vegetation types. Rangeland mayor may not be used <br /> <br />as a grazing area for wild and domest~cated animals. Rangelands are <br /> <br />neither irrigated nor tilled and rely on precipitation to supply native <br /> <br />.. <br /> <br />vegetation is done by grazing wild and domestic animals. The Framework <br /> <br />Study (Appendix VI, 1971) characterizes the 37,500,000 acres of Upper <br /> <br />Basin rangelands into areas of four specific vegetal communities; namely <br /> <br />.. <br /> <br />(l) Grass, (2) Northern Desert Shrub, (3) Southern Desert Shrub, and <br /> <br />(4) Salt Desert Shrub. Table 11-2 shows the rangeland figures for the <br /> <br />.. <br /> <br />Upper Colorado River Basin, Figure ilI- 5 is a location map for rangeland <br /> <br />in the Upper Colorado River Basin. <br /> <br />Lower Basin rangelands are divided into three vegetal communities; <br /> <br />.. <br /> <br />namely (l) Grassland, (2) Norlhern Desert Shrub, and (3) Southern Desert <br /> <br />Shrub. Rangeland in the Lower Colorado River Basin occupies 57,586,000 <br /> <br />acres. Table 111-2 shows the distribution of rangeland in the Lower <br /> <br />.. <br /> <br />32 <br /> <br />.. <br />