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•Table 2.3-23. Determination of Grazing Capacity in AUM's for Each Vegetation Type of Lands Under Trapper <br />Mine Surface Control.0)(4) <br />Pinyon - <br />Juniper (2) - 192.9 <br />Mountain <br />Shrub <br />North, <br />East and <br />+ 7,200 <br />Feet <br />Exposures (A) 2,255.2 813.5 1,140.9 .51 <br />4rmfl <br />40 and West <br />Exposures (B) 954.6 552.9 328.2 .34 <br />Big Sage- <br />brush -Grass <br />All <br />Exposures (C) 2,964.4 702.8 1,295.6 .44 <br />Total 6,367.1 2,764.7 <br />190.2 2.2 <br />54.7 1.5 <br />215.9 1.9 <br />(1) An animal unit month (ALM) is taken as one cow with calf consuming 804 lbs of forage per Tmnth. <br />Expressed in terns of sheep, one AIM will equal 4.3 eve's each with one lanb. (cook, 1970) <br />(2) No data available as to lbs/acre yield. Type will not be impacted by mining or reclamation. <br />(3) This value assures that ore -half of the total current annual growth (CAG) of herbaceous vegetation <br />will be used by domestic livestock and that shrubs are not used. <br />(4) Based on 1980 production data (herbaceous vegetation only). <br />2-119 <br />X Number <br />Acres <br />of Ewe - <br />Available <br />X Yield in <br />AUM's <br />X <br />Lanb Units <br />in 1980 <br />lbs/acre <br />Available <br />_ <br />X <br />Available ALM's/ AVM's/ <br />Available/ <br />Vegetation Range By Range <br />By Range <br />By Range <br />Acre by Month <br />Acre by <br />Type Site Site <br />Site <br />Site (3) <br />Range Site 6 Months <br />Range Site <br />Pinyon - <br />Juniper (2) - 192.9 <br />Mountain <br />Shrub <br />North, <br />East and <br />+ 7,200 <br />Feet <br />Exposures (A) 2,255.2 813.5 1,140.9 .51 <br />4rmfl <br />40 and West <br />Exposures (B) 954.6 552.9 328.2 .34 <br />Big Sage- <br />brush -Grass <br />All <br />Exposures (C) 2,964.4 702.8 1,295.6 .44 <br />Total 6,367.1 2,764.7 <br />190.2 2.2 <br />54.7 1.5 <br />215.9 1.9 <br />(1) An animal unit month (ALM) is taken as one cow with calf consuming 804 lbs of forage per Tmnth. <br />Expressed in terns of sheep, one AIM will equal 4.3 eve's each with one lanb. (cook, 1970) <br />(2) No data available as to lbs/acre yield. Type will not be impacted by mining or reclamation. <br />(3) This value assures that ore -half of the total current annual growth (CAG) of herbaceous vegetation <br />will be used by domestic livestock and that shrubs are not used. <br />(4) Based on 1980 production data (herbaceous vegetation only). <br />2-119 <br />