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<br /> <br /> <br /> <br /> <br />1 <br /> <br />II <br />II <br />II <br />II <br />II <br />i~ <br />ii <br />1 <br /> <br /> <br /> <br /> <br />Table 4. TRENDS IN MEAN COVER FOR THE PORTION OF THE RECLAIMED AREA SEEDED IN <br />1988. WALDEN COAL PROJECT SITE. BASED ON DATA COLLECTED BETWEEN <br />1989 AND 1993. MEAN COVER VALUES ARE IN PERCENT. <br />Species <br />Sample Size <br />COOL SEASON PERENNIAL GRASSES <br />Aqropyron dasyetachyum <br />Agroetis ecabra <br />Aqropyron smithii <br />Aqropyron epicatum <br />Aqropyron trachycaulum <br />Deschampsia caespitoea <br />Festuca idahoeneie <br />Hordeum jubatum <br />Koeleria macrantha <br />Oryzopeie hymenoidee <br />Poa ampla <br />Stipa viridula <br />Subtotal <br />INTRODUCED PERENNIAL GRASSES <br />Aqropyron crietatum <br />Alopecurue prateneie <br />Bromue inermie <br />Elymus junceus <br />Festuca ovina <br />Subtotal <br />ANNUAL GRASSES <br />Bromue tectorum <br />Subtotal <br />PERENNIAL FORBS <br />Achilles lanulosa <br />Astragalus cicer <br />Penetemon etrictue <br />Subtotal <br />ANNUAL AND BIENNIAL FORBS <br />Carduus nutane sep.macrolepie <br />Chenopodium atrovirene <br />Chenopodium berlandieri <br />Descurainia richardeonii <br />Kochia scoparia <br />Saleola kali <br />Sisymbrium altissimum <br />Solanum triflorum <br />Subtotal <br />SEMI-SHRUBS OR HALF-SHRUBS <br />Artemisia frigida <br />Subtotal <br />1989 1990 1991 1992 1993 <br />14 14 14 14 14 <br />6.57 17.57 9.86 18.43 20.00 <br />0.00 0.01 0.00 0.00 0.00 <br />2.29 3.57 1.57 0.57 0.57 <br />0.00 0.01 0.01 0.01 0.01 <br />0.00 0.00 0.00 0.14 0.00 <br />0.00 0.01 0.00 0.00 0.00 <br />0.00 0.00 0.00 0.00 1.14 <br />0.00 0.01 0.01 0.01 0.00 <br />0.00 0.00 0.00 0.00 0.01 <br />0.00 0.01 0.01 0.01 0.01 <br />0.00 0.00 0.00 0.00 0.14 <br />0.43 0.00 0.00 0.01 0.00 <br />9.29 21.19 11.46 19.18 21.89 <br />0.00 0.01 0.00 0.01 0.14 <br />0.00 3.00 0.01 1.29 1.00 <br />0.00 0.00 0.00 0.01 0.00 <br />0.14 3.43 3.86 9.57 9.57 <br />0.00 2.14 2.86 0.01 0.43 <br />0.14 8.58 6.72 10.89 11.14 <br />0.00 0.01 0.00 0.00 0.00 <br />0.00 0.01 0.00 0.00 0.00 <br />0.14 0.01 0.01 0.00 0.00 <br />0.00 0.01 0.00 0.00 0.00 <br />0.00 0.01 0.01 0.01 0.01 <br />0.14 0.03 0.02 0.01 0.01 <br />0.00 0.00 0.01 0.00 0.00 <br />1.57 0.01 0.01 0.00 0.00 <br />4.43 2.57 0.00 0.00 0.00 <br />0.00 0.01 0.00 0.01 0.00 <br />0.00 0.01 0.00 0.00 0.00 <br />0.57 0.71 0.43 0.00 0.00 <br />0.00 0.01 0.00 0.01 0.00 <br />0.00 0.00 0.00 0.01 0.00 <br />6.57 3.33 0.45 0.03 0.00 <br />0.00 0.01 0.01 0.01 0.00 <br />0.00 0.01 0.01 0.01 0.00 <br />-11- <br />