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Statistical Summary and Sample Adequacy Calculations, document that the number of <br />transects required to characterize the "total plant cover" at the 90% confidence interval was 5.7 <br />transects and 6.7 transects for "allowable plant cover." <br />When IME sampled this area in 2010, the average "total plant cover" was 57.10%. When IME <br />sampled this area in 2006, the average "total plant cover" was 30.93%. <br />Forage Production. The results obtained from the sampling of the 31 forage production transects <br />are found in Table 19, Corley Reclamation Area — 2013 Production. Forage production <br />averaged 13.61 g/1/4 m2 or 485.1 pounds per acre. Perennial grasses produced 13.21 g/1/4 m2 or <br />484.9 pounds per acre and accounted for 97.1 % of the forage production. Perennial forbs <br />produced 0.39/1/4 m2 or 14.0 pounds per acre and accounted for 2.9% of the forage production. <br />The locations of the 31 forage production transects are shown on Map 19, Corley Reclamation - <br />2013 Transect Location Map. The sample adequacy calculations in Table 2, 2013 - Statistical <br />Summary and Sample Adequacy Calculations, document that the number of samples required <br />to characterize the parameter of total herbaceous forage production at the 90% confidence interval <br />was 15.4 transects. <br />When IME sampled this area in 2010, the average forage production was 39.38 g/1/4m2 or 1,403.5 <br />pounds per acre. When IME sampled a large portion of this area in 2006, the average forage <br />production was 19.12 g/1/4m2 or 681.4 pounds per acre. <br />Species Diversity. The four most dominant plant species contributed 21.21% of the total plant <br />cover or 74.50% of the total relative plant cover. Warm season grass species contributed 15.94% <br />of the total plant cover or 55.99% of the total relative cover. The two most dominant warm season <br />plant species contributed 15.67% of the total plant cover or 55.04% of the total relative plant <br />cover. <br />When IME sampled this area in 2010, warm season grass species contributed 14.6% of the total <br />plant cover or 25.57% of the total relative cover. The two most dominant warm season plant <br />species contributed 11.60% of the total plant cover or 20.32% of the total relative plant cover. <br />The four most dominant plant species contributed 39.60% of the total plant cover or 69.35% of <br />the total relative plant cover. <br />When IME sampled this area in 2006, warm season grass species contributed 9.13% of the total <br />plant cover or 29.51 % of the total relative cover. The two most dominant warm season plant <br />species contributed 5.93% of the total plant cover or 19.17% of the total relative plant cover. The <br />four most dominant plant species contributed 18.27% of the total plant cover or 59.07% of the <br />total relative plant cover. <br />LOADOUT REFERENCE AREA <br />Plant Cover. The results obtained from the sampling of the 21 plant cover transects on the <br />Loadout Reference Area, are presented in Table 21, Loadout Reference Area - 2013 Plant <br />Cover. "Total plant cover" averaged 26.52%, litter cover averaged 31.95% and "allowable plant <br />cover" averaged 21.38%. <br />Perennial grasses was the dominant plant life form, contributing 16.86% of the total plant cover or <br />63.56% of the total relative plant cover. Annuals was the second most dominant plant category <br />and contributed 5.10% of the total plant cover or 19.21 % of the total relative plant cover. <br />Perennial forbs was the third most dominant plant form, contributing 1.76% of the total plant <br />cover or 6.64% of the total relative plant cover. Woody plants consisting of shrubs and sub - <br />17 <br />