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• Rule 2.' Permits <br />Revegetation mixtures in these areas were detemuned based on species compositions ofpremine vegetation <br />communities. Care was taken to blend revegetation types with existing types at the excess spoil piles, <br />topsoil stock pile sites, sedimentation ponds, and road corridors. In these instances, acreage and <br />topography will be restored to minimize impacts to wildlife. <br />TABLE 2.05.6-1 <br />LORENCITO CANYON MINE <br />EXISTING AND PROPOSED DISTURBED WILDLIFE HABITAT <br /> Existing <br />Leased Acres <br />Disturbance Acres Percent <br />Disturbance <br />Oak pinyon 8,3 16 756 9. I <br />Grassland 935 110 11.8 <br />Mountain Shrub 766 0 0 <br />Riparian Woodland 75 1 I <br />Hay Meadow 296 2 0.7 <br />Coniferous Forest 7,390 I <1 <br />Pinyon/Juniper 84 0 0 <br />Total Area 17,862 870 4.9 <br />• Revegetation of the surface mine to a grassland community will change the post mine land use from <br />rangeland/wildlife to rangeland exclusively. This change in post mine land use has been approved by the <br />Landowner (Exhibit 17). <br />The post mine topography within the surface mine area is described in Section 2.05.5. In general, the <br />topography will resemble premine conditions. The number and size ofboulder and brush piles will vary <br />according to the amount of these materials available during reclamation. In addition, boulder piles and <br />brush piles will be placed within the surface mine aze to provide habitat for various small mammals and <br />passerine bird species. <br />Habitat fragmentation will occur as a result of the proposed surface disturbance. Habitat fragmentation <br />refers to dividing blocks ofrelatively undisturbed habitats into smaller units interspersed with disturbances. <br />Currently, the permitarea is relatively undisturbed. Placement ofthe surface mine, haul roads, and mine <br />facilities, will fragment habitats within the permit area. Haul roads present the greatest potential for <br />fragmenting habitat. Table 2.05.6-2 shows the haul truck traffic expected on various haul road segments. <br />Studies indicate that species, such as elk, will underutilize habitats within one half mile of roads (Edge and <br />Marcum, 1985). <br /> <br />(~{-Ql <br />2.05-80 (revised 07/25/01) <br />