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DATA ANALYSIS <br />I At the Chimney Rock Mine, three vegetation communities will be reclaimed including <br />dryland pasture, irrigated pasture, and rangeland/wildlife habitat. The following discussion <br />provides a description of each community with the revegetation success criteria. The <br />Vegetation Map (Map 2 of the permit) has been revised to reflect these communities and <br />Table 1 presents a summary of the revegetation standards. <br />I All data which has been used in this analysis are contained in the appendices of this <br />document. Data collected during 1990 for the proposed reference areas are presented in <br />Appendix 1. Data collected on the East Pit reclaimed area during 1988 are contained in <br />Appendix 2. Additional data collected on the East Pit reclaimed area during 1987 are <br />contained in Appendix 3. Data collected on the irrigated pasture are contained in <br />~ Appendix 4. <br />SPECIES DIVERSITY <br />Using the CMLRD-recommended method, the reclamation success standard for species <br />diversity in the dryland pasture will be establishment of 2 cool season grasses, 1 warm season <br />grass, and 1 perennial forbs. In addition, each of these species must have a relative cover <br />value between 3 percent and 60 percent. Seed mixes for the dryland pasture are provided <br />in Tables 16 and 16C. The rangeland/wildlife habitat will have the same diversity standard <br />as the dryland pasture. Seed mixes for the rangeland/wildlife habitat are provided in Tables <br />16, 16B, and 16C. <br />For the irrigated pasture, the reclamation standard will be establishment of 2 cool season <br />grasses, 1 warm season grass, and 2 perennial forbs. Again, each species must have a relative <br />cover value between 3 percent and 40 percent. The seed mix for the irrigated pasture is <br />provided in Table 2. The mix was determined using sampling data collected in the irrigated <br />pasture area. <br />VEGETATIVE COVER <br />The vegetative cover standard will be the same for all of the reclaimed vegetation types. <br />However, it will be calculated using the applicable reference area. The vegetative cover <br />standard for a reclaimed area will be 90 percent of the reference area as sampled at the <br />time of revegetation success analysis (see Table 1). <br />PRODUCTION <br />^ The production standard will also be the same for all of the reclaimed vegetation types. <br />Again, the standard will be determined using the reference areas. Production will be 90 <br />' percent of the reference area at the time of revegetation success analysis (see Table 1). <br />4 <br />