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2006 Edna Mine Vegetation Sampling Report <br />Table 2-1). The replacement reference area was also equivalent in herbaceous production to <br />the western half of the original reference area and the whole reference area (Table 2-2). <br />Herbaceous production did differ between the pre-mowed portion in 2005 and the replacement <br />section, but the same was true in the western (un-mowed) portion and the whole area, <br />suggesting that other factors, such as climate, are likely affecting this result. <br />Using mean herbaceous cover and herbaceous production values from the new snowberry sage <br />reference area (comprised of the un-mowed western portion of the original area and the new <br />replacement area) along with the oak mountain shrub reference area; weighted mean values <br />were calculated from the following equation: <br />XW=(.83*Xss)+(.17*Xom ) <br />Xw = weighted mean <br />Xss = herbaceous cover or production mean of snow ?ry eference area <br />xom = herbaceous cover or production mean of oountainsl%'° reference area <br />The weighed mean of the herbaceous cover stan \wa\Iculated ttVbe 24.1% (83% of 24.1 <br />+ 17% of 23.7). The herbaceous production stan wy\alculated to be 41.6 g/mz (83% of <br />36.9 + 17% of 64.8). The West Ridge Topsoiled and Moffat Topsoiled BRU vegetation <br />parameters were compared to the refereLeas' ed means to evaluate vegetation <br />performance on the reclaimed lands. <br />It should be noted that a weighed as a calculated using only the western (un-mowed <br />portion) of the snowberry sage rent area ng with the oak mountain shrub area. There <br />was not a sufficient sample a 7n/ '---St portion alone to meet sample adequacy <br />standards; however, both herbs cove' ` r production were higher in the western portion <br />than in the whole. In this a vv ht mean of the herbaceous cover was calculated to be <br />27.6% (83% of 28.3 +? / of herbaceous production was calculated to be 43.9 g/mZ <br />83% of 39.6 + 17%4.8). Usi these higher standards the West Ridge Topsoiled BRU and <br />Moffat Topsoiled BRU \ ?s still r t or exceeded the cover and production standards. These <br />numbers are not include tl W upporting documents, but can be provided if necessary by <br />request. <br />2.1. Supporting Documentation <br />Tables 2-1 and 2-2 summarize results of t-tests performed to determine equivalence of <br />herbaceous cover in the snowberry sage replacement reference area. Tables 2-3 through 2-6 <br />summarize vegetation data and statistical tests for the oak mountain shrub reference area. <br />Tables 2-7 through 2-10 summarize vegetation data and statistical tests for the snowberry sage <br />reference area. Tables 2-11 and 2-12 provide a list of the community plant species sampled at <br />the respective reference areas. Figures 2-1 and 2-2 are site photographs, and Figures 2-3 and <br />2-4 display transect location maps for the reference areas. <br />Habitat Management, Inc. 4 October 19, 2006