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1 <br />' _ Ve¢etariort Samplin¢ (or 1995 <br />' sandwort, and hairy golden aster were the predominant perennial forbs and Antelopebrush and <br />broom snakeweed were the most abundant shrubs/subshrubs. <br />' Alluvial Valley Floor 1990 <br />' This site was dominated by smooth bromegrass and alfalfa, two species which were used <br />predominantly in hayland seed mixture. Seven other species of perennial grasses occur within this <br />site and have values of relative cover ranging from 0.1 to 1.6 percent (Table 11) Absolute <br />' vegetative cover was 72.0 percent. <br />Alluvial Valley Floor 1991 <br />' Results from this site show orchardgrass, smooth bromegrass, and alfalfa as the dominant <br />vegetation (Table 12). Three perennial grasses and three perennial forbs were also observed with <br />' relative cover values ranging from 0.1 to 1.6 percent. Absolute vegetative cover was 56.7 <br />percent. <br />Alluvial Valley Floor Reference Area <br />' This site accounted for 65.2 percent absolute cover, compared to the two reclaimed areas which <br />had cover values equal to 72.0 and 56.7 percent (Table 13). As expected, smooth bromegrass and <br />alfalfa were the predominant vegetative species accompanied by a wide array of perennial grasses, <br />' annual forbs, and perennial forbs. <br />' VEGETATIVE DISCUSSION <br />The results of the disturbed mine area surveys revealed absolute vegetation cover within all the <br />' reclaimed aeeas exceeded the mean cover value of the Dryland Reference Area. Litter, rock, and <br />bare ground accounted for 39.4, 7.5, and 39.2 percent of the ground cover within the disrurbed <br />mine areas in comparison to 21.2 percent litter, 39.0 percent rock, and 31.2 percent bare ground <br />' within the Dryland Reference Area. Comprehensive plant species lists for the disturbed mine area <br />and Dryland Reference Area are presented in Tables 14 and 15. <br />' The results of the vegetation cover sampling within the AVF Reclaimed Areas resulted in the 1990 <br />AVF Reclaimed Area exceeding the AVF Reference Area. The AVF 1991 Reclaimed Area cover <br />' value did not exceed the AVF Reference Area afrer the adjustment to exclude annual, biennial, and <br />noxious weed species. Comprehensive plant species lists for the disrurbed mine area and AVF <br />Refernce Aare are presented in Tables 16 and 17. Therefore, a T-Test was calculated to <br /> <br /> <br />NYnN.OSTMarc~ 19. 19V"I a -19 <br />