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averaged 28.67 %. When sampled in 1997, the total canopy cover averaged 40.00 %. When <br />sampled in 1987, the total canopy cover was 41.00 %. When sampled in 1980, basal cover <br />averaged 19.1 % and warm season species accounted for 11.08 % of the total basal cover or <br />58.01 of the total relative cover <br />Forage Production. The results obtained from the sampling of the 30 forage production <br />transects on the Refuse Pile Reference Area are presented in Table 4, Refuse Pile Reference <br />Area - 2014 Production. This table shows that the total herbaceous forage production, <br />averaged 20.71 g/1/4 m2 or 738.1 pounds of air-dry forage per acre. Perennial grasses <br />produced 20.11 g/1/4 m2 or 716.7 pounds of air-dry forage per acre and accounted for 97.1 % <br />of the total perennial forage production. Perennial forbs contributed 0.59 g/1/4m' or 21.0 <br />pounds of air-dry forage per acre and accounted for 2.9 % of the total perennial herbaceous <br />forage production. <br />The locations of the 30 forage production transects are shown on Map 3, Refuse Pile <br />Reclamation - 2014 Reclamation Monitoring Map. The sample adequacy calculations in <br />Table 2, 2014 Statistical Summary and Sample Adequacy Calculations, document that the <br />number of samples required to describe this site at the 90 % confidence interval was 85.3 <br />transects. <br />When sampled in 2013, perennial herbaceous forage production, consisting of perennial <br />grasses and forbs, averaged 9.93 g/1/4m2 or 353.9 pounds of air-dry forage per acre. Perennial <br />grasses contributed 9.66 g/1/4m2 (344.3 pounds per acre) or 97.3 % and perennial forb plant <br />species contributed 0.27 g/1/4 m' (9.6 pounds per acre) or 2.7 % of the forage production. <br />When sampled in 1987, forage production averaged 12.16 g/m2 or 108.3 pounds of air-dry <br />forage per acre. <br />Species Diversity. The four most dominant plant species in 2014, contributed 36.39 % of the <br />total plant cover or 85.58 % of the total relative cover. All warm season grass species in 2014 <br />contributed 28.73 % of the total plant cover or 67.54 % of the total relative cover. <br />When this site was sampled in 2013, the four most dominant species contributed 87.83 percent <br />of the total relative cover. When sampled in 1997, the four most dominant plant species <br />contributed 87.5 % of the total relative basal cover. When sampled in 1987, the four most <br />dominant plant species contributed 28.4 % of the total plant cover or 69.27 % of the total <br />relative basal cover. When this site was originally sampled in 1980, all warm season grass <br />species contributed 11.08 % of the total basal cover or 58.01 % of the total relative basal cover. <br />The four most dominant plant species contributed 12.63 % of the total basal cover or 66.13 % <br />of the total relative basal cover. <br />Shrub Density. The results obtained from the sampling of the 50 shrub density transects are <br />found in Table 5, Refuse Pile Reference Area - 2014 Shrub Density. This table shows that <br />the woody plant density averaged 8.36 woody plants per 100 m2 or 338.3 woody plants per <br />acre. <br />The locations of the 50 shrub density transects sampled are shown on Map 3, Refuse Pile <br />Reclamation - 2014 Reclamation Monitoring Map. The sample adequacy calculations in <br />Table 2, 2014 Statistical Summary and Sample Adequacy Calculations, document that the <br />number of samples required to characterize the parameter of woody plant density at the 90 % <br />confidence interval was 88.2 transects. <br />10 <br />