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<br /> <br />• Vegetation liners in drainage features (channels, spillways or other water courses); <br />• Impoundment embankments (inslopes and outslopesl; <br />• Quickly established temporary vegetation cover during intermittent constntction activities <br />(dust and soil erosion control): <br />• Organic mulches and cover crops: <br />• Road cut and fill slopes steeper than 2h:1v: and <br />• Vegetative filter strips for surface water runoff treatment. <br />Critical Area Stabilization seed mixtures will include species best adapted to the site-specific <br />planting requirements and goals, with the origin of plan[ materials being of lesser importance <br />than the selected species' demonstrated success in stabilizing soil and establishing cover. <br />Species that are aggressive and strongly rhizomatous will be favored for inclusion. Atypical <br />Critical Area Stabilizauon seed mixture is provided in Table 3. With [he concurrence of the <br />BLM. species may be added or deleted from this seed mixture to tit site-specific needs and <br />objectives. Species availability and economics will also influence the composition of the seed <br />mixture. Therefore, native or introduced plant species may be used, selection being based on <br />the ability to satisfy a panicular application's vegetation requirements. <br />Interim Revegetation seed mixtures will be used on disturbed areas that require plant cover for <br />extended periods of time but will require redisturbance during subsequent mining operations or <br />[he final reclamation process. Interim vegetation can be particularly important in: <br />• Providing effective temporary or longer tetra erosion and sedimentation convol: <br />• Providing valuable wildlife mitigation that minimizes or offsets habitat impacts associated <br />with ongoing mining operation disturbance: <br />• Providing cover and preventing erosion of stockpiled topsoil materials: and <br />• Stabilizing water control and treatment structure embankments, road cuts and fills and other <br />areas where surface stability and interim wildlife habitat capabilities are important tractors <br />where potential erosion hazards are moderate or low. <br />An example of a typical interim Revegetation seed mixture is provided in Table 6. While <br />erosion and sedimentation convol remain a primary goal for interim vegetation plantings, <br />species selected for these mixtures will place increased emphasis on wildlife mitigation <br />measures or other specialized goals identified on a site-by-site basis. With the concurrence of <br />the BLM, species may be added or deleted from this mixture to fit site-specific stabilization and <br />wildlife needs and objectives. Species availability and economics will influence seed mixtttre <br />composition from year to vear. Species seasonality may also be considered in seed mixture <br />formulations for specific sites. <br />Permanent vegetation establishment, plant community development and seral succession <br />success depend upon the reconstruction of soil mediums that are suitable for plant growth and <br />.lmencan Sad>_ L.L.P. 5-5 <br />Gutl Conservmton. Fmston and Sediment <br />Control. teclamatton and Rcvc¢_eunon Plan <br />October '_8. 1998 <br />Revtscd Apnl 9. 1999 <br />