2012-06-20_PERMIT FILE - C2010089 (61)

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TABLE 2. - -SEED MIXTURE (Kg bulk seed /acre) FOR HORIZON AND TOPSOIL DEPTH REVEGETATION STUDY COMMON NAME SCIENTIFIC NAME PLANT SYMBOL Kg /ha GRASSES Crested wheatgrass Agro c ristatum Tall wheatgrass Aaropyron elon aq tum Intermediate wheatgrass Agropyron intermedium Western wheatgrass Agropyron smithii Streambank wheatgrass Aaropyron riparium Slender wheatgrass Agrop t rac h lu y caum Pubescent wheatgrass Agropyron trichophorum Regar Meadow brome Bromus biebersteinli Manchar Smooth brome Bromus inermis Orchardgrass Duct lis glomerata Ru W ildrye Elu yrn j unceus Duran Hard fescue Festuca ovina duriuscula Timothy Phleum pratense Sherman Big bluegrass Poa amp la Kentucky bluegrass Poa pratensis Green needlegrass Stipa viridula Winter wheat Triticum aestivum TOTAL GRASSES FORBS Aster Aste =spP' Cicer milkvetch Astragalus titer Arrowleaf balsamroot Balsamorhiza sagittata Crownvetch Coronilla varia Utah sweetvetch Red sarum boreale var utahensis Sunflower Helianthus annuus Lupine Lunin� us sAa. Alfalfa Medicago sativa TOTAL FORBS SHRUBS Saskatoon serviceberry Amelanchier alnifolia Agcr 3.25 Agel 1.12 Agin 3.25 Agsm 1.57 Agri 1.34 Agtra 1.12 Agtri 1.23 Brbi 1.23 Brin 1.90 Dagl 0.56 Elju 1.23 Feov 1.23 Phpr 0.56 Poam 0.90 Popr 1.12 Stvi 1.12 Trae 11.20 33.93 Aster 0.28 Asci 0.56 Basa 0.28 Cova 0.56 Hebo 0.28 Hean 0.28 Lupin 0.28 Mesa 0.56 3.08 Amal 0.56 TABLE 2. -- Continued COMMON NAME SCIENTIFIC NAME SHRUBS - Continued Big sagebrush Artemisia tridentata Cliffrose Cowania mexicana Fourwing saltbush Atriplex canescens Winterfat Ceratoides lanata Rubber rabbitbrush Chrysothamnus nauseosus Green rabbitbrush Chrysothamnus viscidiflorus Morman tea Ephedra viridis TOTAL SHRUBS TOTAL K -3 -4 PLANT SYMBOL Kg /ha Artr 0.17 Come 0.22 Atca 0.56 Cela 0.56 Chna 0.17 Chvi 0.17 Epvi 0.17 2.58 39.59 Biomass was determined in 1979, 1981, 1983 and 1985 using a circular metal frame. clipped , w e at ground level as to grasses and forbse a 1 m size In 1981, 1983 and 1985 a 14 m circular frame was used. Data for 1981, 1983 and 1985 were collected according to perennial grasses, annual grasses, perennial forbs, annual forbs and shrubs. All samples were dried in drying ovens at 105 °C for 24 hours. Vegetation diversity was calculated using the Shannon - Weiner index. For all years except 1978, the relative cover by species was used. For 1978, the index was calculated on stand Species reported by Nicholas (1979). richness was calculated by counting the number of plant species encountered in each individual sample transect. Statistical comparisons of species diversity and richness were made using each transect value as an individual datum as suggested by Pinchak et. al. (1985). data were evaluated by analysis of variance and linear correlation techniques. RESULTS Horizon Segregation Study Density and Stand Ratings Grass seedling density counts for ed from were given by Nicholas (1979) and ranged to 60.63 plants /m According to criteria given by Valentine (1974), all treatments would be considered "excellent" first year stands. The density counts for the B horizon were found to be significantly higher than the other treatments (P< .001). Stand ratings for 1978 were reported by Nicholas (1979) to range from