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• <br /> <br />Tahle 16. Cover Data -Alkali Sagebrush Reference Area, Seneca II Mine, SCC, Roult, 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 (cool) <br />Bromopsis inermis 0.50 60.00 1.52 0.50 1.50 <br />Phleum pratense 0.10 50.00 0.30 0.10 0.30 <br />Poa pratensis 0.20 20.00 0.61 0.20 0.60 <br />Thinopyrum intermedium 0.00 10.00 0.00 0.00 0.00 <br />TOTAL INTRO. PERENNIAL GRASSES (c) 0.8 80.0 2.4 0.8 2.4 <br />NATIVE SHRUBS <br />Amelanchier alnifolia 1.00 70.00 3.04 1.00 3.00 <br />Chrysothamnus viscidiflorus 0.10 60.00 0.30 0.10 0.30 <br />Sedphidium arbusculum ssp. longilobum 13.50 100.00 41.03 13.60 40.84 <br />Seriphidium tridentatum 2.20 40.00 6.69 2.20 6.61 <br />Symphodrarpos rotundifolius 2.30 90.00 6.99 2.50 7.51 <br />TOTAL NATIVE SHRUBS 19.1 100.0 58.1 19.4 58.3 <br />Standing dead 3.80 100.00 3.80 <br />Litter 10.90 100.00 10.90 <br />Bare soil 52.10 100.00 52.10 <br />Rock 0.30 10.00 0.30 <br />TOTALS 100.0 100.4 <br />TOTAL VEGETATION COVER 32.9 (s=3.9) 100.0 33.3 (s=3.8) 100.0 <br />GROUND COVER (Litter+Rock+Veg+St.Dead) 47.9 48.3 <br />SPECIES DENSITY (# of speciesl100 sq.m.) <br />(AVERAGE= 18.7 Std.Dev.= 4.8) <br />• <br />