1990-10-03_REPORT - C1980005 - Laserfiche WebLink

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• C 0.8 D 1.3 E 0.6 F 0.6 (0.2 excluding annuals) G 0.9 (0.7 excluding annuals) H 0.8 (0.4 excluding annauls) Reference Areas AUM's/ acre Mountain Brush 0.3 Sagebrush 0.3 The above calculations were based on a proper use factor of 50 percent and one animal unit requiring 810 pounds of forage per month. Annuals were siginificant parts of total production only in the recently reclaimed areas. The SCS has estimated annual production values for the mountain loam range site (corresponding to the Sagebrush type) and the brushy loam type (corresponding to the Mountain Brush type). • These estimates are contained in the range site descriptions for these units. For the mountain loam range site, production of sites in excellent condition during an average precipitation year is 1,125 pounds/acre or 0.7 AUM's/acre (with 50 percent proper use). The brushy loam range site under similar conditions has a calculated proper stocking rate of 0.8 AUM's/ acre. It can be seen that production in the reclaimed areas, with the exception of the most recently reclaimed areas, has resulted in greater stocking rates than either of the reference areas. The reclaimed stocking rates also equal or exceed the SCS-estimated potential production of native vegetation in excellent condition, as presented in the mountain loam and brushy loam range site descriptions. In Areas B, C, and D, the older Wadge reclaimed areas, the bulk (about 90%) of the production is attributable to introduced species. In the newer Wadge reclaimed areas (G and H), this contribution is between 80 and 85%; in the Wolf Creek areas, the 1985 and 1986 areas barely exceed 60% in production by introduced species. In the 1987 Wolf Creek area, the percentage comprised of introduced species is about 83%, but much of this is made up of introduced annual • weeds that can be expected to largely disappear in a few years. This shows promise of greater 19