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2010-05-07_PERMIT FILE - C2009087A (4)
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2010-05-07_PERMIT FILE - C2009087A (4)
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Last modified
3/22/2018 6:32:38 AM
Creation date
6/3/2010 10:37:24 AM
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Template:
DRMS Permit Index
Permit No
C2009087A
IBM Index Class Name
Permit File
Doc Date
5/7/2010
Doc Name
Vegetation Information
Section_Exhibit Name
Exhibit 2.04.10-E1 Vegetation Information
Media Type
D
Archive
Yes
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Additionally, native perennial cool season grasses contributed 5.6 percent first -hit vegetation <br />• <br />cover, consisting primarily of sheep fescue (Festuca brachyphylla ssp. coloradensis), mountain <br />brome, and basin wildrye (Leymus cinereus). <br />Total average vegetation cover for first hits was 47.0 percent. For herbaceous vegetation, total <br />average cover for first hits was 45.1 percent. Cover by standing dead, litter, bare soil and rock <br />averaged 6.5, 18.1, 27.1 and 1.3 percent, respectively. Average species density was 22.9 <br />species per 100 sq. m. <br />Production <br />(Table 10) <br />Total herbaceous production in 2006 was 1,424.1 pounds per acre. Of this, 797 pounds were <br />Introduced perennial cool season grasses, 342 were introduced perennial forbs, and 219 were <br />native perennial cool season grasses. Four other lifeforms were present with a combined <br />contribution of less than 100 pounds per acre. <br />• MOUNTAINBRUSH <br />Photographs 1 through 10 (Affected) and 47 through 51 (Reference) <br />Dominance of the affected area of vegetation cover in this type (affected) (Table 1) is held by the <br />same three shrub species (Saskatoon serviceberry (Amelanchier alnifolia), chokecherry (Padus <br />virginiana var. melanocarpa), and mountain snowberry (Symphoricarpos rotundifolius) that <br />dominate the understory of the Aspen Forest type, with one major additional species, Gambel's <br />oak (Quercus gambelil), a species with relatively little shade tolerance. The other species, <br />occurring commonly included Oregon grape (Mahonia repens), Wood's Rose (Rosa woodsh), and <br />big sagebrush. Quaking aspen (Populus tremuloides). occurs very sparsely in the unit <br />comprising only 0.3 percent of total vegetation cover. Next to native shrubs, the most abundant <br />lifeform is native perennial forbs, which total 18.3 percent of total vegetation cover with fifty -six <br />species observed. The largest contributors to total vegetation cover in the native perennial forb <br />lifeform were American vetch, tailcup lupine (Lupinus caudatus) and little sunflower (Helianthella <br />quinquenervis). Native perennial cool season grasses comprised a total of 14.5 percent of total <br />vegetation cover, the most abundant were elk sedge (Carex geyen), and bluegrasses -- fowl <br />bluegrass (Poa palustris), Aggasiz bluegrass (Poa agasizzensis), and big bluegrass (P. ampla). <br />Other common species present included bluebunch wheatgrass (Pseudoroegneria spicata ssp. <br />• 15 <br />
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