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u <br /> <br />Table 20. Cover Data -Sagebrush Reference Area, Seneca II Mine, SCC, Routt, CO - 2003 <br />PLANT SPECIES <br />RELATIVE <br />AVERAGE VEGETATION <br />COVER FREQUENCY COVER <br />Page 2 of 4 <br /> RELATIVE <br />AVERAGE VEGETATION <br />COVER-ALL COVER-ALL <br />(%) (%) <br />INTRODUCED PERENNIAL GRASSES (coal) <br />Bromopsis inennis 0.20 30.00 0.38 0.30 0.53 <br />Phleum pretense 0.00 10.00 0.00 0.00 0.00 <br />TOTAL INTRO. PERENNIAL GRASSES (c) 0.2 40.0 0,4 0.3 0.5 <br />NATIVE SHRUBS <br />Amelanchier alnifolia 0.90 70.00 1.72 1.00 1.77 <br />Chrysothamnus viscidiflorus 0.50 80.00 0.96 0.50 0.88 <br />Seriphidium canum 0.50 _ 10.00 0.96 0.50 0.88 <br />Seriphidium tddentatum 11.20 100.00 21.46 11.30 20.00 <br />Symphoricarpos rotundifolius 10.00 100.00 19.16 11.00 19.47 <br />TOTAL NATIVE SHRUBS 23.1 100.0 44.3 24.3 43.0 <br />Standing tlead 4.20 100.00 4.20 <br />Litter 36.60 100.00 36.60 <br />Bare soil 7.00 100.00 ~ 7.00 <br />TOTALS 100.0 104.3 <br />TOTAL VEGETATION COVER 52.2 (s=4.3) 100.0 56.5 (s=5.0) 100.0 <br />GROUND COVER(Litter+ROCk+Veg+Sl.Dead) 93.0 97.3 <br />SPECIES DENSITY (# of species/100 sq.m.) <br />(AVERAGE= 25.7 Std.Dev.= 3.2) <br />CJ <br />