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of the total relative plant cover. The third most dominant species was Sideoats Grama, which <br />contributed 8.87 % of the total plant cover or 15.89 % of the total relative plant cover. Sand <br />Dropseed, was the fourth most dominant plant, contributing 5.67 % of the total plant cover or <br />10.16 % of the total relative plant cover. <br />When sampled in 2013, "total plant cover" averaged 44.33 %, litter cover averaged 31.47 % <br />and "allowable plant cover" averaged 42.33 %. When sampled in 2010, total plant cover <br />averaged 60.30 %. When sampled n 2006, the total plant cover averaged 42.53 %. <br />The locations of the 15 cover transects sampled on this site are shown on Map 13, Vento <br />Portal Reclamation - 2014 Revegetation Monitoring Map. The sample adequacy <br />calculations in Table 2, 2014 Statistical Summary and Sample Adequacy Calculations, <br />document that the number of transects required to characterize the "total plant cover" was 5.7 <br />transects and 7.2 transects for "allowable plant cover" at the 90 % confidence interval. <br />Forage Production. The results obtained from the sampling of the 30 forage production <br />transects on this area are found in Table 13, Vento Portal Reclamation - 2014 Production. <br />The total perennial herbaceous forage production averaged 36.69 g/1/4 m' or 1,307.6 pounds <br />of air-dry forage per acre. Perennial grasses produced 34.74 g/1/4 m' or 1,238.1 pounds of air- <br />dry forage per acre and accounted for 94.7 % of the perennial herbaceous forage production. <br />Perennial forbs produced 1.96 g/1/4 m' or 69.9 pounds of air-dry forage per acre and accounted <br />for 5.3 % of the perennial herbaceous forage production. <br />The locations of the 30 forage production transects are shown on Map 13, Vento Portal <br />Reclamation - 2014 Revegetation 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 with respect to the parameter of perennial <br />herbaceous forage production at the 90 % confidence interval was 52.2 transects. <br />When sampled in 2013, forage production averaged 19.28 g/l/4m2 or 687.1 pounds of air-dry <br />forage per acre. When sampled in 2010, forage production averaged 42.74 g/1/4m2 or 1,523.3 <br />pounds of air-dry forage per acre. When sampled in 2006, forage production averaged 32.70 <br />g/ 1/4m' or 1,165.4.4 pounds of air-dry forage per acre. <br />Species Diversity. The four most dominant plant species contributed 63.80 % of the total <br />relative plant cover and there were four warm season grass species which contributed three <br />percent or greater percent relative cover. Warm season grass species contributed 5 % of the <br />total plant cover or 47.80 % of the total relative cover. <br />When sampled in 2013, the four most dominant species contributed 33.65 % of the total plant <br />cover or 75.91 percent of the total relative cover on this site and the warm season species <br />contributed 21.19 % of the total cover or 47.80 % of the total relative cover. When sampled in <br />2010, warm season grass species contributed 8.10 % of the total plant cover or 13.43 % of the <br />total relative cover. The four most dominant plant species contributed 38.20 % of the total <br />plant cover or 63.35 % of the total relative plant cover. When sampled in 2006, warm season <br />grass species contributed 5.33 % of the total plant cover or 13.47 % of the total relative cover. <br />The four most dominant plant species contributed 24.4 % of the total plant cover or 57.37 % of <br />the total relative plant cover. <br />Shrub Density. The results obtained from the sampling of the 30 shrub density transects are <br />found in Table 14, New Portal Reference Area - 2014 Shrub Density. Woody plant density <br />averaged 23.20 woody plants per 100 m2 or 938.9 woody plants per acre. <br />15 <br />