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• The locations of the 30 shrub density trausects sampled on this site are shown on Map 2, Rangeland <br />Reclamation -Vegetation Tnursecrt Location Map. Copies of the individual field data sheets for the <br />woody plant density sampling of this site are found inExhibit E -Copies of Rangeland Reclamation <br />Block AD&H-AB-93-95 -Shrub Density Field Data Sheets. Exarrrination ofthe sample adequacy <br />calculations in Table 2, Trapper Mine Sample Adequacy Calculations, reveals the number of samples <br />required to describe the shrub density on this area at the 90 perrznt wnfidence interval was 32.5 <br />trarrsects. Since the actual shrub density coverts on the reclaimed site (837.7 stems per acre) exceeds the <br />approved standard (400 stems per acre), using the DMG's proposed reverse null approach, sample <br />adequacy is achieved with 30 transeccts. <br />Species lhversity. The percent relative composition or cover values in Table 5, Rangeland Reclamation <br />Block AD&H-AB-93-95 -Plant Cover, documents a total of six species possessing a relative cover of <br />greater than 3 percent. Included in this number are four cool season perennial glasses and two species of <br />perennial forts. <br />The revegetation success standard for species diversity for these revegetated areas is that they are to be <br />dominated by a minimum of at least four cool season pereiurial grasses and one fort species each <br />possessing at least 3 percent relative cover. On this reclaimed site there are four cool season grasses and <br />two fort species, which satisfy this species diversity standard. The maximum allowable contribution by a <br />single species cannot excced 50 perrerrt relative cover and no four species can wntribute more than 80 <br />percent of the relative rover. Application of these criteria documents that the maximum wntribution in <br />temps of relative cover for a single species is 16.28 percent with the four most dominant species on this <br />site wntributing only 47.79 percent of the total relative cover on this site. The revegetation monitoring <br />data from this site wnfiun that the species diversity standards for this area have been satisfied. <br />RANGELAND RECLAMATION BLOCK AC&D-C-87-95 <br />Plant Cover. The results obtained from the sampling of the 20 plant cover transects on this site are <br />presented in Table 8, Rangeland Reclan~ation Block AC&D-C-87-95 -Plant Cover. Total plant cover on <br />this site averaged 43.30 percent and litter cover averaged 34.35 percent (Table 8, Rangeland <br />Reclamation Block AC&D-C-87-95 -Plant Cover). <br />The cover success standard for all Rangeland Reclamation is based on "allowable cover." For Range Site <br />C, which includes Rangeland Reclamation Black AC&D-C, the "allowable cover" standard is 47 % with <br />at least 25 % of the cover coming from herbaceous vegetation. The "allowable cover" standard at <br />Trapper includes perennial plant cover (minus the cover from noxious perennial weeds), plus up to 10% <br />relative annual plant cover, plus litter cover up to the maximum allowed for Range Site C (which equals <br />22%). Table 8, Rangeland Reclamation Black AC&D-C-87-95 -Plant Cover, documents that the <br />"allowable cover" averaged 53.99 percent Since this "allowable weer" value (53.99 %) exceeds the <br />revegetation success standard (47 %), it can be wncluded that the "allowable rover' in this Rangeland <br />Reclamation Block satisfies the revegetation success standard. <br />Perennial grasses and Alfalfa dominated the seeded vegetation. Western Wheatgrass, Intermediate <br />Wheatgrass, Great Basin WHdrye and Smooth Bromegrass were the most wmmonly enwuntered <br />grasses on this site, wntributing 13.91, 13.10, 7.01 and 5.63 percent, respectively, of the total relative <br />• <br />