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r <br />• <br />The average total production on this site was determined to equal 179.21 g/1/4m or 6,387.0 <br />pounds of air -dry forage per acre. Perennial grasses contributed an average of 102.33 g/1/4m or <br />57.10 percent of the total herbaceous forage production. Perennial forbs, contributed an average <br />of 76.88 g/1/4m or 42.90 percent of the total herbaceous production. <br />Appendix Table 2.04.10 -2, Sample Adequacy Calculations, documents that forage production on <br />this site at the 90 percent confidence interval was determined to equal 4.1 transects. The <br />locations of the 30 production transects are shown on Map 2.04.10 -1, Permit Area Vegetation <br />Map. <br />Shrub Density. As documented in Appendix Table 2.04.10 -17, Intensively Managed Irrigated <br />Pasture - Shrub Density, there were no shrubs or woody plants encountered in the sampling of <br />the fifteen cover transects. The average shrub density on this site is zero and as shown in <br />Appendix Table 2.04.10 -2, Vegetation Sample Adequacy Calculations, sample adequacy at the <br />90 percent confidence interval was achieved at zero transects. <br />WETLAND <br />This vegetation type is primarily located in the bottoms of the drainages which flow across this <br />site, such as Chiles Draw, located on the northwestern portion of the site, Meehan Draw which <br />flows across the north - central portion of the property and on other areas that receive irrigation <br />tailwaters from up slope irrigated areas or which are associated with groundwater discharge <br />areas. This vegetation type is the sixth largest plant community type found within the proposed <br />NHN Mine permit area (Map 2.04.10 -1 - Permit Area Vegetation Map). This area covers an area <br />approximately 25.14 acres in size and accounts for nearly 7.80 percent of the proposed permit <br />area. <br />Plant Cover. The results obtained from the sampling of the 15 plant cover transects on the <br />Wetland predisturbance area are presented in Appendix Table 2.04.10 -18, Wetland - Plant <br />Cover. Total plant cover on this site averaged 69.80 percent and litter averaged 27.73 percent. <br />Four plant life forms were encountered in the cover sampling of this site. Native perennial <br />grasses and grasslikes were the dominant plant life form encountered on this site, contributing <br />54.87 percent of the total plant cover and 78.61 percent of the total relative cover found on this <br />site. Shrubs were the second most dominant plant life form, contributing 6.07 percent of the <br />total plant cover and 8.69 percent of the total relative cover found on this site. Perennial native <br />forbs contributed 5.87 percent of the total plant cover and 8.40percent of the total relative cover <br />found on this area. Annuals contributed 3.00 percent of the total plant cover and 4.30 percent of <br />the total relative cover found on this area. <br />Baltic Rush, a native grass like plant was the most dominant plant species encountered, <br />contributing 31.24 percent of the total relative plant cover found on this site. The other dominant <br />Section 2.04.10 Page 17 April 2011 <br />