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A, = Aspen type percentage of the pretnining surface to be affected by training <br />• Ab = Mountain Brush type percentage of the premising surface to be affected by <br />training <br />Amm = Steep mountain brush type percentage of the premising surface to be <br />affected by mitring <br />A: = Sagebrush/Snowbetxy type percentage of the pretnining surface to be <br />affected by training <br />Xa = Average reference azea all hit total herbaceous cover -Aspen type <br />xy = Average reference area all bit total herbaceous cover -Mountain Brush type <br />x,,,,t = Average reference area all hit total herbaceous cover -Steep Mountain Brush <br />-type <br />x: = Average reference azea all hit total herbaceous cover -Sagebrush/Snowbetry <br />type <br />Revegetation success for cover in reclaimed portions of the mesic drainage type and the azea <br />previously occupied by the improved pasture - subimgated type will be evaluated by comparing their <br />weighted mean herbaceous rover to the total vegetation cover of the reclaimed mesic drainage type. <br />• The azea previously occupied by the improved pasture subirrigated type will be reclaimed to a mesic <br />drainage type. The cover comparison value for the mesic drainage and improved pasture-subirrigated <br />types will be determined from undisturbed aeeas of the two types within the permit azea. This value <br />will be a weighted mean of the herbaceous cover fox the two undisturbed vegetation types. The <br />weighted mean calculation procedure is as described above in the cover standadd for reclaimed <br />uplands. The average vegetation covet in the reclaimed mesic drainage areas will be considered <br />acceptable if it is not less than 90 percent of the covet standard with 90 percent statistical confidence. <br />The weighting formula to be used for the mesic drainage cover evaluation is: <br />x~p > .90 (MDa)(xlyfp) + (IPSa)(xlpS)) <br />Ta <br />with 90 percent statistical confidence <br />where: <br />xREV =average vegetation cover, reclaimed area <br />MDa =mesic drainage acreage, premise area <br />IPSa =improved pasture-subixrigated, premise azea <br />• x~ =average reference area all hit herbaceous covet-mesic drainage <br />PR-02 36 Revised 01/06 <br />