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HERBACEOUS PRODUCTION <br />Calculation of 90 percent of the production performance standard appropriate for 2011 sampling is <br />demonstrated below. <br />Aspen Reference Area Allowable Herbaceous Production' = 1391.8 Ibs /acre <br />Mountain Brush Reference Area Allowable Herbaceous Production' = 754.8 Ibs /acre <br />Sagebrush Reference Area Allowable Herbaceous Production' = 963.6 Ibs /acre <br />Steep Mountain Brush Reference Area Allowable Herbaceous Production' = 492.9 Ibs /acre <br />Western Wheatgrass/ Alkali Sagebrush Reference Area Allowable Herbaceous Production' = 934.2 <br />Ibs /acre <br />1 Herbaceous production adjusted by subtracting annualdiiennial plant production in excess of 10% of the remainder. Production by <br />noxious weed species is not collected. <br />90 percent of the Production Standard <br />= 0.90 [0.11(1391.8) + 0.35(754.8) + 0.31(963.6) + 0.13(492.9) + 0.10(934.2)] <br />= 787.8 lbs/acre <br />As can be seen in Figure C -2, the 2011 BRB -1 mean allowable herbaceous production of 1,882.5 pounds <br />per acre far exceeded 90 percent of the production performance standard of 787.8 Ibs /acre. The average <br />annual and biennial sampled 2011 BRB -1 production was not greater than 10 percent of total herbaceous <br />production and therefore no "excess" annual /biennial production deduction was used in 2011. Noxious <br />weed production was not collected. <br />Since the 2011 BRB -1 allowable herbaceous production exceeds 90 percent of the production performance <br />standard (Figure C -2, Table C -1), and in considerations that sample adequacy based on 30 samples was <br />not demonstrated in either the reclaimed or the reference areas (with the exception of the Aspen Reference <br />Area) (Table C -4), hypothesis testing for revegetation success proceeded using a two- sample t -test of the <br />Reverse Null Hypothesis with Satterthwaite's Adjustment (CDMG 2010, proposed rules revisions 4.15.1 <br />(2)(c)). Because use of the weighting procedure allowed under permit provisions looses confidence <br />intervals around the synthisized mean, for this test the above - referenced two- sample t -test of the reverse <br />null hypothesis was accomplished comparing the 2011 allowable herbaceous production from BRB -1 to the <br />production datasets from each of the five extended reference areas. <br />22 <br />