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The locations of the 30 shrub density transects sampled on this site are shown on Map 18, Old <br />Portal Reference Area - 2014 Transect Location 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 52.1 transects. <br />When this site was sampled in 2013, woody plant density averaged 3 1. 10 woody plants per 20 <br />m2 or 6,293.1 woody plants per acre. <br />CORLEY RECLAMATION <br />Plant Cover. The results obtained from the 2014 sampling of the 15 plant cover transects on <br />the Corley Reclamation are presented in Table 18, Corley Reclamation - 2014 Plant Cover. <br />"Total plant cover" averaged 52.93 %, litter cover averaged 24.41% and "allowable plant <br />cover" averaged 50.60 %. <br />Perennial grasses was the dominant plant life form encountered, contributing 42.13 % of the <br />total plant cover or 79.60 % of the total relative plant cover. Woody plants was the second <br />most dominant plant life form and contributed 5.93 % of the total plant cover or 11.21 % of the <br />total relative plant cover. Perennial forbs was the third most dominant plant form, contributing <br />2.13 % of the total plant cover or 4.03 % of the total relative plant cover. Annuals and <br />biennials was the fourth most dominant plant category, contributing 1.73 % of the total plant <br />cover or 3.27 % of the total relative plant cover. Noxious weeds was the fifth most dominant <br />plant form, contributing 0.60 % of the total plant cover or 1.13 % of the total relative plant <br />cover. Succulents was the sixth most dominant plant form, contributing 0.40 % of the total <br />plant cover or 0.76 % of the total relative plant cover. <br />The dominant plant species encountered on this site was Intermediate Wheatgrass which <br />contributed 19.47 % of the total plant cover or 36.78 % of the total relative plant cover. Sand <br />Dropseed, was the second most dominant plant species, contributing 8.87 % of the total plant <br />cover or 16.75 % of the total relative plant cover. The third most dominant species was Rubber <br />Rabbitbrush, which contributed 5.27 % of the total plant cover or 9.95 % of the total relative <br />plant cover. Blue Grama was the fourth most dominant species, contributing 4.60 % of the <br />total plant cover or 8.69 % of the total relative plant cover. <br />The locations of the 15 cover transects sampled on this site are shown on Map 19, Corley <br />Reclamation - 2014 Transect Location Map. The sample adequacy calculations in Table 2, <br />2014 Statistical Summary and Sample Adequacy Calculations, document that the number <br />of transects required to characterize the "total plant cover" at the 90 % confidence interval was <br />6.0 transects and 8.3 transects for "allowable plant cover." <br />When sampled in 2013, "total plant cover" averaged 28.47 %, litter cover averaged 37.00 % <br />and "allowable plant cover" averaged 26.67 %. When sampled in 2010, "total plant cover" <br />averaged 57.10 %. When sampled in 2006, "total plant cover" averaged 30.93 %. <br />Forage Production. The results obtained from the sampling of the 30 forage production <br />transects are found in Table 19, Corley Reclamation - 2014 Production. The total perennial <br />herbaceous forage production averaged 64.89 g/1/4 m' or 2,312.7 pounds of air-dry forage per <br />acre. Perennial grasses produced 63.14 g/1/4 m' or 2,250.3 pounds of air-dry forage per acre <br />and accounted for 97.3 % of the perennial herbaceous forage production. Perennial forbs <br />produced 1.75/1/4 m' or 62.4 pounds of air-dry forage per acre and accounted for 2.7 % of the <br />total perennial herbaceous forage production. <br />18 <br />