2016-12-28_REVISION - C1994082 (8)

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SMB RA 2012 323.0 323.0 230.2 31 88 1.309 A RA 2014 1525.6 1525.6 844.0 30 53 1.311 MB RA 2014 778.0 778.0 391.2 30 44 1.311 SB RA 2014 856.5 833.6 508.3 30 64 1.311 SMB RA 2014 670.9 627.4 342.3 30 52 1.311 1 Reference Area Types (RA): A = aspen, MB = mountain brush, SB = sagebrush, SMB = steep mountain brush, WW/AS = western wheatgrass/alkali sagebrush 2012 Production Success Evaluation Calculation of 90 percent of the production performance standard relative to 2012 sample data is demonstrated below. Aspen Reference Area Allowable Herbaceous Production1= 662.0 lbs/acre Mountain Brush Reference Area Allowable Herbaceous Production) = 417.5 lbs/acre Sagebrush Reference Area Allowable Herbaceous Production) = 444.3 lbs/acre Steep Mountain Brush Reference Area Allowable Herbaceous Production = 323.0 lbs/acre 'Herbaceous production adjusted by subtracting annual/biennial plant production in excess of 10% of the remainder. Production by noxious weed species is not collected. 90 percent of the production standard for 2012 = 0.90 [0.244(662.0) + 0.489(417.5) + 0.240(444.3) + 0.027(323.0) = 432.9 lbs/acre The 2012 BRB-1 reclaimed area mean allowable herbaceous production of 1,130.8 pounds per acre (Table 3) far exceeded 90 percent of the production performance standard of 432.9 pounds per acre. The values used in all calculations reflect assessment for annual and biennial production that is greater than 10 percent of total herbaceous production and appropriately adjusted. Production by noxious weeds was excluded and introduced annual grasses were deducted. The 2012 BRB-1 allowable herbaceous production exceeded 90 percent of the production performance standard but sample adequacy was not demonstrated in either the reclaimed or the reference areas (minimum of 30 samples — see Table C4 in Attachment D). Therefore SL -6 - 14