2008-10-03_REPORT - C1981010 - Laserfiche WebLink

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were a total of four cool season perennial grasses and one forb that satisfy this species diversity standard. In the 2007 sampling, there are five cool season grasses and two fort species, which satisfied this species diversity standard. These data confirm that for both revegetation monitoring periods, the species diversity standard is satisfied. The Permit requires that the maximum allowable contribution by a single species cannot exceed 50 percent relative cover and no four species can contribute more than 80 percent of the relative cover. Application of these criteria documents that in 2008, the maximum contribution in terms of relative cover for a single species is 25.00 percent and the four most dominant species on this site contributed 54.35 percent of the total relative cover. When this area was sampled in 2007, the most dominant species contributed 16.38 percent of the total relative cover and the four most dominant species on this site contributed 52.31 percent of the total relative cover on this site. The revegetation monitoring data from this site confirm that for both sampling periods, the species diversity standards for this area have been satisfied. SHRUB CLUMP EVALUATION A total of three shrub clumps, which are located in Rangeland Reclamation Block AD&H-A/B - 96-98, were sampled to determine if at least half of the pads within these clumps possessed at least ten live shrub stems per pad. The locations of the three shrub clumps evaluated are shown on the enclosed maps. Two shrub clumps, (SC-D-98 and SCD-99) are shown on Map 2, Trapper Mine - Vegetation Transect Area (D-Pit) and the location of the third shrub clump evaluated (SC-A-99) is shown on Map 4, Trapper Mine - Vegetation Transect Area (A-Pit). The results of this sampling are summarized in Table 6, Shrub Clump - Shrub Survival Summary. • The revegetation success standard is that at least half of the transplanted shrub pads must possess at least 10 live woody plant stems per pad. The survival of shrubs in these individual clumps ranged from 40.44 percent to 98.22 percent with an average of 75.80 percent. When these shrub clumps were sampled in 2007, survival ranged from 23.81 percent to 96.15 percewith an overall average of 67.09 percent. These data confirm that for both monitoring perio shrub pad survival exceeds the 50 percent standard. Copies of the individual field data sheets used to calculate the shrub density for the Shrub Clumps are found in Exhibit D - Copies of Shrub Clump - Shrub Survival Field Data Sheets. nt ds, Conclusions After sampling 20 cover transects, 30 production and 48 shrub density transects, these data confirm that the revegetation success standards have been achieved for all cover, production, shrub density and shrub clump survival parameters required for successful Phase III bond release, based upon sample adequacy being achieved for plant cover and for production and shrub density using the reverse null statistical approach.