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• 2.2.8 EP043 <br />EP043 is comprised of 13.89 acres of moderetety sloping revegetation that has a predominatety <br />northeasterly aspect. This unit was seeded in 2002 and therefore, has undergone one growing season <br />prior to sampling in 2003. A total of 23 plant taxa were observed in the unit (see Table 19). <br />Seedling emergence data (Table 16 and 55) from 40 quadrats revealed an average of 1.88 perennial <br />seedlings per square foot. An average density of 1.35 was attributed to perennial grasses while 0.38 <br />seedlings per square foot were from perennial forts and 0.15 was attributed to shrubs. Annual species, <br />especially field pennycr~s and Russian thistle, contributed an average of 1.60 seedlings per square foot. <br />Woody plant density (Table 17) totaled 6,534 shrub seedlings per acre with big sagebrush and antelope <br />bitterbrush (Purshia tridentate) the dominant woody plants. Given the effort to favor shrub <br />establishment by limiting the grass and fort component of the community, it appears following one <br />growing season, that the potential for success is very encouraging. Another two or three years of <br />positive development will be required before success can be determined with a higher degree of <br />probability. <br />• Noxwus weeds and annual bromes appear to be controlled in this unit. First year seedling <br />emergence can be considered good for perennial grasses and forts and very good for shrubs. Given <br />adequate precipitation and high shrub seedling survival, this unit should develop as planned into a <br />moderately dense shrub patch in a mix of perennial grasses and forts. <br /> <br />xennxou Energy Co. / Cdowyo Mine Page 32 Revegetatlon Monttorlrrg -2003 <br />