Laserfiche WebLink
• was determined to equal 171.23 shrubs per one hundred square meters or 6,929.7 shrubs per <br />acre. Wyoming Big Sagebrush, Douglas Rabbitbrush and Rubber Rabbitbrush were the most <br />commonly encountered shrubs. The revegetation shrub density success standard for this area is <br />1,500 stems per acre. Since this site averaged 6,929.7 stems per acre, this area satisfies the <br />revegetation success standazd with respect to shrub density. <br />When ESCO sampled this site in 1999, they reported that the shrub density averaged 175.7 <br />shrubs per one hundred square meters or 7,110.6 shrubs per acre. In 2005, this reclaimed site was <br />found to average 205.33 shrubs per one hundred square meters or 8,309.7 shrubs per acre. <br />The locations of the 30 shrub density transects sampled on the main block for this reclaimed site <br />are shown on Map 4, 1995 & 1999 Reclamation -Vegetation Transect Location Map. For that <br />block located to the north of Jackson County Road # 29, see Map 5, 1996 Reclamation - <br />V egetation Transect Location Map and for that narrow strip east of the existing access road, see <br />Map 3, Pre-1986 Reclamation -Vegetation Transect Location Map. Copies of the individual <br />field data sheets for the woody plant density sampling of this site are found in Appendix K - <br />Copies of 1995 Reclamation -Shrub Density Field Data Sheets. Examination of the sample <br />adequacy calculations in Table 2, Man Mine Sample Adequacy Calculations, reveals the number <br />of samples required to describe the shrub density on this area at the 90 percent confidence <br />interval was 32.2 transects. The actual shrub density counts on this reclaimed site (6,929.7 stems <br />per acre) exceeds the approved standard (1,500 stems per acre). <br />• Species Diversity, The percent relative composition or cover values in Table 10, 1995 <br />Reclamation -Plant Cover, documents that the four most dominant plant species growing on this <br />reclaimed site account for 75.53 percent of the total relative cover found on this site, which is <br />below the maximum of 83 percent allowed in the Permit. The single most dominant plant <br />species was found to be Wyoming Big Sagebrush which contributed 37.77 percent of the total <br />relative cover found on this site, less than the 40 percent maximum value allowed by a single <br />species and one of the four dominants is a shrub. <br />When ESCO sampled this site in 1999, they reported that the four most dominant plant species <br />contributed 61.18 percent of the total relative cover with the single most dominant plant <br />contributed 35.09 percent of the total relative cover on this site. These revegetation monitoring <br />data from this site confirm that the species diversity standards for this reclaimed site are <br />currently and have historically been satisfied. When sampled in 2005, the four most dominant <br />plant species growing on this reclaimed site accounted for 67.15 percent of the total relative <br />cover found on this site. <br />1996 RECLAMATION <br />Plant Cover. The results obtained from the sampling of the 15 plant cover transects on this <br />reclaimed site are presented in Table 13, 1996 Reclamation -Plant Cover. Total plant cover on <br />this site averaged 38.13 percent and litter cover averaged 21.73 percent (Table 13, 1996 <br />Reclamation -Plant Cover). <br />• 13 <br />