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Woody Plant Density: Greasewood Bond Release Block 2011 & 2012. <br />The reclamation success standard for woody stem establishment on the greasewood reclamation <br />areas is 800 stems per acre. <br />Sampling for woody stem establishment has consistently given mine operators challenges. Due <br />to the high standard deviation, sample adequacy was not achieved after the operator had <br />collected 97 samples. SCC used the reverse null approach to demonstrate reclamation success. <br />The Division finds this approach acceptable. 2011 sample results for woody stem density on the <br />greasewood reclamation areas was 1,943 woody stems per acre. The Division finds that the <br />greasewood bond release block exceeded the standard for woody plant density establishment for <br />2011 and is considered successful for the 2011 sampling event. <br />Sample adequacy was not achieved during the 2012 woody stem density sampling after the <br />operator had collected 96 samples. SCC used the reverse null approach to demonstrate <br />reclamation success. The Division finds this approach acceptable. 2012 sample results for <br />woody stem density on the greasewood reclamation areas was 1,650 woody stems per acre. The <br />Division finds that the greasewood bond release block exceeded the standard for woody plant <br />density establishment for 2012 and is considered successful for the 2012 sampling event. <br />Species Diversity: Greasewood Areas 2011 & 2012. <br />PAP page 14 -24 states the requirements of the species diversity standard for the Roadside Mine <br />For species diversity success: Total cool - season grass species will have relative cover >0.5% <br />with a minimum of two species observed in the reclamation <br />Total warm - season grass species will have relative cover >0.5% with a <br />minimum of two species observed in the reclamation. <br />Total perennial forb and suffrutescent (sub - shrub) species relative cover <br />>0.5% with a minimum of two species observed in the reclamation. <br />No reclaimed area shall have any single species that exceeds 70% relative <br />cover, with the exception of annual grass. The annual grass component <br />shall not exceed 70% relative cover unless the annual grass component in <br />the corresponding reference area also exceeds 70 %. If annual grass <br />exceeds 70% in the reference area, annual grass component in the <br />reclaimed area shall not exceed the relative cover of the annual grass <br />relative cover in the reference area by more than 5 %. <br />For 2011 Greasewood Bond Release Block sampling results: <br />Perennial cool season grass relative cover was 1.2 %. <br />3 <br />