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Production and Capability of Rangeland Resources for Livestock <br />on the Yoast Mine Permit Area (Includes Haul Road Corridor) <br />Vegetation Type <br />Production) Stocking Rate2 Capability3 <br />Acreage lbs/acre ac/AUM (AVMS/ac) AVMS <br />Mountain brush <br />1180.5 <br />760 <br />3.51 <br />(0.29) <br />336.3 <br />Sagebrush <br />429.3 <br />888 <br />2.50 <br />(0.40) <br />171.7 <br />Aspen <br />348.6 <br />878 <br />2.68 <br />(0.37) <br />130.1 <br />Steep Mountain Brush <br />165.1 <br />352 <br />9.47 <br />(0.11) <br />17.4 <br />Western Wheatgrass/Alkali Sage <br />57.4 <br />897 <br />2.48 <br />(0.40) <br />23.2 <br />Mesic Drainage <br />32.3 <br />1970 <br />1.13 <br />(0.89) <br />28.6 <br />Alkali Sagebrush/Greasewood <br />3.2 <br />757 <br />3.51 <br />(0.29) <br />0.9 <br />Alkali Meadow <br />1.4 <br />4502 <br />0.49 <br />(2.03) <br />2.9 <br />Total 2217.8 711.1 <br />lAnnual production of herbaceous species as determined from baseline vegetation studies <br />(Tab 10). Aspen and western wheatgrass/alkali sagebrush represent weighted average <br />values based on variation within the types. <br />2Stocking rates were determined by assigning an accessibility and palatability factor (see <br />text) and a proper use factor of 50 percent. 1 AUM = 1000 lbs of forage required by 1 <br />animal unit (AU) for 1 month. 1 AU = a 1000 lb cow with or without calf. <br />3Capability equals the total number of AUMs available in each vegetation type. <br />7 <br />