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• western snowberry was the dominant shrub. Total vegetation cover within the aspen reference area (78.1 percent) was higher than that of the study area (Table 3.3 ). Bare ground cover was 2.4 percent. Litter and rock cover was 19.4 percent combined. Compared with the study area perennial grasses and shrubs were lower with 4.0 and 9.9 percent cover respectively. Perennia] forbs however were higher with 55.5 percent. Dominant forbs included sweetanise with 19.b percent cover and Porters liguisticum with 8.5 percent cover. Production - The mean herbaceous production within the aspen vegetation type of the study area was 129.1 grams per square meter (Table 3.3 ). Perennial grasses comprised the majority of the production with 68.7 grams per square meter. Kentucky bluegrass, nodding brome and blue wildrye were the dominant grasses. Perennial forbs produced an average of 48.3 grams per square meter. Ballhead waterleaf and leguminous forbs were the highest producers. Mean herbaceous production in the aspen reference area was 121.2 grams per square meter. Perennial forbs produced more than 86 percent of the total production with 105.4 grams per square meter. sweetanise, ballhead waterleaf, Porter liguisticum and leguminous forbs (predominately American vetch and aspen peavine) were dominant. Mean annual above ground herbaceous production in the reference area did not exceed that of the study area samples. Therefore a test far equivalency of the reference area was made and it was found to be equivalent. Further discussion is made of this in section 3.4. Density - Mean density of woody species in the aspen study area samples was 31.0 shrubs per 50 square meters and 7.5 aspen trees per 100 square meters. Dominant shrubs included western snowberry with 24 individuals per 50 square meters and 6 common chokecherry individuals per 50 square meters. 13 • Exhibit 10, Item 5 Revision Date: 03/06/07 • 18 Revision No.: PR-02