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<br />Table 6. ~COnt'd.). TRENDS IN MEAN COVER FOR THE RECLAIMED AREA AT THE WALDEN COAL PROJECT ,SITE. BASED <br />ON DATA COLLECTED BETWEEN 1989 AND 1995. MEAN COVER VALUES IN PERCENT. <br /> 1989 1990 1991 1992 1993 1994 1995 <br />SEMI-SHRUES OR HALF-SHRUBS <br />Artemisia fri gi da 0.00 0.01 0.10 0.01 0.10 0.01 0.01 <br />Subtotal 0.00 0.01 0.10 0.01 0.10 0.01 0.01 <br />SHRUBS ~ <br />Artemisia ttiden to to 1.90 2.80 3.60 4.00 2.60 6.90 ' • <br />6.30 ~ 5 ~H.~+J`A- <br />Ceratoides Lana to 0.00 0.01 0.01 0.01 0.10 0.01 0.01 <br />Chrysothamnus na useosus 0.00 0.00 0.01 0.01 0.01 0.01 0.01 <br />Chrysothamnus vi scidi floras 0.00 0.00 0.00 0.00 0.00 0.01 0.01 <br />Purshia tri den to to 0.00 0.00 0.00 0.01 0.00 0.00 0.00 <br />Sa rcobatus vermiculatus 0.00 0.00 0.00 0.01 0.01 0.01 0.01 <br />Subtotal <br />i 1.40 2.81 3.62 9.04 2.72 6.94 6.34 <br />N <br />j LITTER <br />59.00 <br />37.30 <br />49.90 <br />90.20 <br />99.50 <br />48.50 (~ ~ I n <br />99.80-ek 7~"Z` <br />ROCK 0.20 0.00 0.20 0.00 0.00 0.10 0.00 <br />~ <br />TOTAL VEGETATION 18.40 30.80 18.60 29.50 30.30 28.50 3f00~~-~-~' ~ <br />"" <br />LITTER/ROCK 59.20 37.30 50.10 40.20 49.50 98.60 99.80 <br />BARE SOIL 27.90 31.90 31.30 30.30 25.20 22.90 29.20 <br />TOTAL COVER 72.60 68.10 68.70 69.70 79.80 77.10 75.80 <br />No. Species/Sample 3.35 9.35 3.15 3.50 3.30 3.50 ~3.10~' <br />\' <br />