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2001-12-11_PERMIT FILE - C1981012A (5)
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2001-12-11_PERMIT FILE - C1981012A (5)
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Last modified
7/11/2017 9:22:38 AM
Creation date
11/20/2007 7:35:18 PM
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Template:
DRMS Permit Index
Permit No
C1981012A
IBM Index Class Name
Permit File
Doc Date
12/11/2001
Section_Exhibit Name
EXHIBIT 15 COVER PRODUCTION AND DENSITY OF VEGETATION 10/80
Media Type
D
Archive
Yes
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9 <br />• Artemisia frigida had a mean density of 2.3/m2 (Table 3). <br />` !!anthocephaluin sarothrae had a mean density of 0.3/m2, and <br />Chrysothamnus nauseosus had a mean density of 0.2/m2. Average den- <br />sity of shrubs for the grassland reference area ~•ias 2.8 individuals/m2. <br />Dominant species in the grassland site ~;;ere Bouteloua 9racilis, <br />Artemisia fri ida, Carex eleocharis, and Xanthocephalum sarethrae as <br />indicated by high cover and production values. Bouteloua cLracilis is <br />a shallow-rooted grass, and would survive ~~;ell on shallovi soils, using <br />available moisture more readily than other species because of prox- <br />imity to the soil surface. Artemisia frigida is a shrub with a wide <br />ecological amplitude but grows most typically on dry, coarse sandy, <br />or shallow loamy soils, similar to the grassland site. <br />^lean cover values for herbaceous vegetation in the pinyon- <br />. _ juniper type are seen in Table 4. Astragalus striatus had a mean <br />cover value of 6.0'5. Townsendia eximia had a mean cover value of <br />3.8°~, Koeleria cristata had a mean cover value or 3.3", Carex sp. had <br />a mean cover value of 3.1`,5, Aster falcatus had a mean cover value of <br />2.3'5, Danthonia parryi had a mean cover value of 2.1°;, and Oxv*_ropis <br />lambertii had a mean cover value of 2.0". The remaining species had <br />cover values of 1.3`.S and beloi+. The total mean cover value for the <br />pinyon-juniper understory ~;as 32.4`x. 6a re ground accounted for 21.9": <br />of the sampled area, litter accounted for 28.3'>, and rock accounted <br />for 17.5`,5. <br />Production values for herbaceous vegetation in the pinyon- <br />juniper site are provided in Table 5. Astragalus striatus had a mean <br />production value of 12.3 gms/m`. Astragalus flexuosus had a mean <br />• _ production value of 8.8 gms/m2, and perennial fortis had a Wean <br />
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