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• • <br />Table 2.1 -1. Vegetation sampling summary and comparison against bond release standards. <br />Herbaceous Cover Allowable Cover <br />( %)*1 ( %) "2 <br />Reclaimed Land Sample Sample Permit Sample Permit <br />Block Use Acres Year Average Standard Average Standard <br />A,D &F Pits RSA &B Rangeland 364.8 2010 <br />1999 to 2001 2011 <br />61.2 33.0 76.2 52.0 <br />70.3 33.0 84.4 52.0 <br />Plant Production <br />(g/0.5m2) <br />Sample Permit <br />Average Standard <br />113.2 31.2 <br />190.2 31.2 <br />*1. Does not include noxious perennial weeds. <br />"2. Allowable cover = perennial cover minus noxious perennials, plus up to 10% relative annual cover, plus litter <br />cover up to the maximum allowed per range site. Allowable cover bond release standards are as follows: <br />Range Site A = 52 %: herbaceous cover at least 33 %, litter cover up to 19 %. <br />Range Site B = 52 %: herbaceous cover at least 29 %, litter cover up to 23 %. <br />Range Site C = 47 %: herbaceous cover at least 25 %, litter cover up to 22 %. <br />u,, "3. Stem density bond release standard = 400 stems /ac for A and B range sites. No standard for range site C. <br />"4. The minimum sample size requirement established by DRMS is 15. <br />"5. Refer to sample adequacy summary (Table 2 in attached Crofts' report). <br />*6. Reverse null T -Test on mean to demonstrate revegetation success used rather than sample adequacy equation (refer to Table 2.2 -1). <br />Shrub Density <br />(stems /ac) "3 <br />Sample Permit <br />Average Standard <br />1325 400 <br />1471 400 <br />Shrub Pad Survival <br />( %) <br />Sample Permit <br />Average Standard <br />83.3 50.0 <br />65.7 50.0 <br />