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• <br />Attachment 10-2 <br />1994 Production Data <br />Production data from four vegetation types in the Yoast Supplemental Study Area were collected <br />in 1994. The sample sites required range cages to protect them from grazing disturbance prior to <br />clipping. Production sampling in 1994 occurred in the Western Wheatgrass/Alkali Sagebrush <br />(Table 1), Mesic Drainage (Table 2), Improved Pasture -Upland (Table 3), and Alkali Sagebrush/ <br />Greasewood (Table 4) vegetation types. Data and summary tables are presented following this <br />discussion. <br />Range cages were placed at randomly selected points in each of the four vegetation types. <br />Maps showing random sample locations were provided by PCC. Each of the cone-shaped range <br />cages enclosed an area of approximately 1.0 sq. m. at the base, large enough to provide the <br />central 0.5 sq. m. sample area with a surrounding buffer zone. During the period of July 24 to 26, <br />• 1994, the cages were removed and all herbaceous plant growth within the vertical projection of a <br />0.5 sq. m. plot centered in the exclosed area was clipped and placed in a labeled paper bag. <br />Clipped samples were returned to the ESCO laboratory and oven-dried at 105 degrees Celsius <br />for 24 hours, then weighed to the nearest 0.1 gram. <br />Observed oven-dry production ranged from 757 Ib/ac in the Alkali Sagebrush/Greasewood <br />vegetation type to 1237 Ib/ac in the Improved Pasture -Upland vegetation type (Table 5). <br />Sample sizes and assessment of sample adequacy for the 1994 production data is presented in <br />Table 5. It should be noted that one range cage and the vegetation that it protected in the Alkali <br />Sagebrush/Western Wheatgrass vegetation type was burned in a wildfire in early summer 1994 <br />and thus could not be sampled. <br />• <br />