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Table 6. (cont.) TRENDS IN MEAN COVER FOR THE RECLAIMED AREA AT THE WALDEN COAL <br />PROJECT SITE. BASED ON DATA COLLECTED BETWEEN 1989 AND 1993. <br />MEAN COVER VALUES ARE IN PERCENT. <br />Species 1989 1990 1991 1992 1993 <br />SEMI-SHRUBS OR HALF-SHRUBS <br />Artemieia frigida <br />Subtotal <br />SHRUBS <br />Artemieia tridentata <br />Ceratoidee lanata <br />Chryeothamnue nauseosue <br />Purshia tridentata <br />Sarcobatue vermiculatue <br />Subtotal <br />LITTER <br />ROCK <br />TOTAL VEGETATION <br />LITTER/ROCK <br />BARE SOIL <br />TOTAL COVER <br />No. Species/Sample <br />0.00 <br />0.00 <br />1.40 <br />0.00 <br />0.00 <br />0.00 <br />0.00 <br />1.40 <br />54.00 <br />0.20 <br />18.40 <br />54.20 <br />27.40 <br />72.60 <br />3.35 <br />0.01 0.10 <br />0.01 0.10 <br />2.80 3.60 <br />0.01 0.01 <br />0.00 0.01 <br />0.00 0.00 <br />0.00 0.00 <br />2.81 3.62 <br />37.30 49.90 <br />0.00 0.20 <br />30.80 18.60 <br />37.30 50.10 <br />31.90 31.30 <br />68.10 68.70 <br />4.35 3.15 <br />0.01 0.10 <br />0.01 0.10 <br />4.00 2.60 <br />0.01 0.10 <br />0.01 0.01 <br />0.01 0.00 <br />0.01 0.01 <br />4.04 2.72 <br />40.20 44.50 <br />0.00 0.00 <br />29.50 30.30 <br />40.20 44.50 <br />30.30 25.20 <br />69.70 74.80 <br />3.50 3.30 <br />-16- <br />