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1 <br />' Table 2. TRENDS IN MEAN COVER FOR THE PORTION OF THE RECLAIMED AREA SEEDED IN <br />1984. WALDEN COAL PROJECT SITE. BASED ON DATA COLLECTED BETWEEN <br />1989 AND 1993. MEAN COVER VALUES IN PERCENT. <br />' Speciee 1989 1990 1991 1992 1993 <br /> Sample Size 6 6 6 6 6 <br /> COOL SEASON PERENNIAL GRASSES <br /> Agropyron dasyatachyum 9.33 9.67 6.00 8.33 11.33 <br />' Agropyron emithii 1.00 0.67 0.01 0.00 1.67 <br /> Agropyron spicatum 0.00 0.01 0.00 0.00 0.00 <br /> Deechampeia caespitosa 0.00 0.01 0.00 0.00 0.00 <br /> Feetuca idahoeneis 0.00 0.00 0.00 0.00 0.01 <br />' Hordeum brachyantherum 0.00 0.33 0.00 0.00 0.00 <br /> Oryzopeie hymenoides 0.00 0.01 0.00 0.01 0.01 <br /> Poa ampla 2.33 0.00 0.00 0.00 0.00 <br /> Stipa comata 0.00 0.00 0.00 0.33 0.00 <br /> Stipa viridula 6.00 3.33 0.01 4.33 0.67 <br /> Subtotal 18.67 14.03 6.02 13.01 13.69 <br /> INTRODUCED PERENNIAL GRASSES <br />' Agropyron crietatum 0.00 0.00 0.00 0.01 0.00 <br /> Agropyron intermedium 0.00 0.00 0.00 0.33 0.01 <br /> eromue inermia 0.00 0.00 0.00 0.01 0.00 <br /> Elymue junceue 0.33 1.67 0.33 1.67 1.00 <br />' Poa prateneis 0.00 0.33 0.01 0.00 0.01 <br /> Subtotal 0.33 2.00 0.34 2.02 1.02 <br /> PERENNIAL FORBS <br />' Achilles lanulosa 0.00 0.01 0.00 0.01 0.01 <br /> Arabia sp. 0.00 0.00 0.00 0.00 0.01 <br /> Aetragalus titer 0.00 0.33 0.00 0.00 0.01 <br /> Aetragalus craeaicarpus 0.00 0.01 0.00 0.00 0.00 <br />' Aetragalus kentrophyta 0.00 0.00 0.01 0.00 0.00 <br /> Penetemon etrictus 0.00 0.00 0.00 0.01 0.01 <br /> Rumex ealicifolius 0.00 0.00 0.01 0.00 0.01 <br />' Subtotal 0.00 0.35 0.02 0.02 0.05 <br /> ANNUAL AND BIENNIAL FORBS <br /> Chenopodium pratericola 0.00 0.01 0.00 0.00 0.00 <br /> Machaeranthera canescene 0.00 0.00 0.00 0.01 0.01 <br />' Subtotal 0.00 0.01 0.00 0.01 0.01 <br /> SEMI-SHRUBS OR HALF-SHRUBS <br /> Artemieia frigida 0.00 0.01 0.33 0.01 0.33 <br /> Subtotal 0.00 0.01 0.33 0.01 0.33 <br /> SHRUBS <br /> Artemieia tridentata 4.67 8.67 10.67 11.33 8.00 <br />' Chryeothamnus naveeosus 0.00 0.00 0.01 0.00 0.01 <br /> Subtotal 4.67 8.67 10.68 11.33 8.01 <br /> LITTER 46.33 46.00 39.33 39.00 48.00 <br />' ROCK 0.33 0.00 0.00 0.00 0.00 <br /> TOTAL VEGETATION 23.67 25.00 17.33 26.33 23.00 <br /> LITTER/ROCK 46.67 46.00 39.33 39.00 48.00 <br /> BARE SOIL 29.67 29.00 43.33 34.67 29.00 <br />' TOTAL COVER 70.33 71.00 56.67 65.33 71.00 <br /> No. Speciee/Sample 4.00 4.33 2.17 3.67 3.00 <br />1 <br />' -8 <br />