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• During 1980 and 1988, total herbaceous production for the sagebrush <br />community was determined to be 436.1 and 825 pounds per acre <br />respectively. According to these production figures, the carrying <br />capacity in animal unit months (AVMs), assuming 1,000 pounds of air <br />dry forage per AUM at 50% utilization, would be from 0.22 to .41 <br />AUMs per acre. Based on the determination by the Bureau of Land <br />Management of an average production of 0.14 AUMs per acre for the <br />sagebrush type in this area, it is evident that the condition of <br />the sagebrush community with the permit area is good. Grazing has <br />been eliminated from the initial lease area since 1977 and will <br />also be eliminated in the future. Grazing on the permit area <br />addition should be discontinued in 1991 with the construction of <br />wire livestock fencing. <br />The sagebrush community is found throughout the permit area on all <br />elevations, slopes and soils. On portions of the permit area where <br />soil moisture retention and soil depth become limiting to the other <br />vegetation communities, the sagebrush community develops. <br />Snowberry will occur in greater numbers within the community where <br />moisture retention is favorable. <br />• For further details on Soil/Moisture relationships in determining <br />vegetation communities refer to Figure 1, Environmental <br />Gradient/Plant Tolerance Graph. <br />Mountain Shrub Community <br />The mountain shrub community is characterized by varying densities <br />of serviceberry (Amelanchier alnifolia), Gambel's oak (Quercus <br />gambelii), and chokecherry (Prunus virginiana). During 1980 and <br />1988, overall woody plant density for the mountain shrub community <br />was determined to be approximately 6,970 and 6,370 plants per acre <br />respectively. The woody plant density for additional species is <br />contained on Table 5, Woody Plant Density. <br />The density measurements for Snowberry involve many of the same <br />problems in the mountain shrub community as encountered in the <br />sagebrush community. Large clumps of Snowberry were encountered <br />making measurements of individual plants very difficult. <br /> <br />2.04.10-12 <br />