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When IME sampled this site in 2005, they reported that total plant cover averaged 33.27 percent <br />and litter cover averaged 27.27 percent. <br />Table 5, 1996 Reclamation - Plant Cover, documents that the "total plant cover" on this <br />reclaimed site averaged 33.94 percent. Since this "total plant cover" value exceeds the total plant <br />cover value of 32.13 percent obtained from the sampling of the Alkali Sagebrush Reference <br />Area, this value (32.13 %), would be the corresponding revegetation success standard for the <br />1999 Reclamation site. Since sample adequacy was achieved for plant cover sampling on both <br />reference areas and this reclaimed site, it can be concluded by direct comparison that the "total <br />plant cover" for the 1999 Reclamation Block satisfies the revegetation success standard with <br />respect to "total plant cover." <br />Production. The results of the 30 production transects sampled on this area are summarized in <br />Table 6, 1999 Reclamation - Production. This table shows that the average total herbaceous <br />forage production was found to be 30.81 g/1/4 m2 or 1,098.1 pounds or air-dry forage per acre. <br />Perennial grasses contributed 29.70 g/1/4 m2 or 96.40 percent of the herbaceous forage produced <br />on this area. Perennial forbs, contributed 1.10 g/1/4 m2 or 3.60 percent of the herbaceous forage <br />production on this area. <br />The revegetation forage production standard for this area is 7.40 g/IAm' or 263.7 pounds of air- <br />dry forage per acre. Since this site averaged 53.88 g/1/4m2 or 1,920.2 pounds or air-dry forage <br />per acre, it appears that this area satisfies the revegetation success standard with respect to total <br />herbaceous forage production. <br />In 2005, IME reported that total herbaceous forage production on the 1999 Reclamation site <br />averaged 53.88 g/1 Am2 or 1,920.3 pounds of air-dry forage per acre. Perennial grasses <br />contributed 49.61 g/1/4m2 or 92.07 percent of the total forage production and perennial forbs <br />contributed 1.57 g/l /4m2 or 7.93 percent of the total forage production <br />The locations of the 30 production transects sampled on this site are shown on Map 4, 1995 & <br />1999 Reclamation - Vegetation Transect Location Map. The sample adequacy calculations in <br />Table 2, Kerr Mine Sample Adequacy Calculations, document that the number of samples <br />required to describe this site at the 90 percent confidence interval was 107.6 transects. <br />Using the reverse null statistical approach on the production data obtained from this site, yields a <br />t. value of 6.0669. Since this ? value is greater than the table t value at an alpha error probability <br />level of 0.20 which corresponds to a t value of 0.854, Ho is rejected and the revegetation <br />production on this site is considered successful, using the DBMS regulations. <br />However, since the production on the reclaimed site exceeds the revegetation success standard, <br />sample adequacy was achieved with 30 transects. <br />Shrub Density. The shrub density counts obtained from the 30 belt transects taken in this area <br />are summarized in Table 7, 1999 Reclamation - Shrub Density. The average shrub density was <br />determined to equal 75.57 shrubs per one hundred square meters or 2,936.9 shrubs per acre. <br />8