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<br />All of the species which are proposed for the seed mixes and.the shrub and tree planting lists <br />are adapted to the conditions in the Nucla area. Many of them occuned on the site prior to <br />mining or have been used in past reclamation. <br />Many species will naturally return when topsoil is disVibuted on graded areas. While there are <br />nearly eighty forbs and thirty grass and grass-like species which occur on the proposed permit <br />area (see Tab 10, Addendum 10-1 Nucla Mine Vegetation Baseline Study, Apperidix C; Plant <br />Species List), only eight are listed as noxious in the Colorado Noxious Weed Seed Requirements <br />Recognized in the AdminisUation of the Federal Seed Act, U.S. Department of Agriculture, <br />January, 1978). These eight species include: <br />1. Q,gropyron repen s Common quackgrass <br />2. a pubesc ens Hairy whitetop <br />3. Centaurea reppn s Russian knapweed <br />4. Cirsium arvense Canada thistle <br />5. Ghoricpora teDSl la Common bluemustard <br />6. Convovulus arv -nci Field bindweed <br />7. Plantaao lanceo lata Buckhorn plantain <br />8. BumeX liusply~ Curly dock <br />3 Seeding and Planting Methods. During the first available (weather dependent) planting season <br />after topsoil replacement (usually April 1 to May 15 and September 1 to November 15), the <br />appropriate perennial seed mixes and shrub and tree species will be seeded and/or planted. Any <br />transplanting, interseeding or reseeding would be accomplished usually concurrent with the <br />regular planting season. <br />Seeding will be accomplished by drill or broadcast seeding, with drill seeding the preferred <br />method, Broadcast seeding will be used for situations where drill seeding is not practical or <br />feasible. Drill seeding will be accomplished with a rangeland type drill equipped with depth <br />bands, while broadcast seeding will be accomplished with an EZEE flow type seeder and <br />cultipacker or a hand broadcaster (Cyclone type) for areas of restricted equipment access. <br />Planting of tree and shrub seedlings will be accomplished with mechanical Vee planters (i.e., a <br />furrow planter pulled by a tractor) or by hand using dibbles, planting hoes or similar tools. <br />Urfa a tabili>ation M .as ~r s. The planting of a cover crop will establish a relatively quick <br />vegetative cover and will be the principal means of surface stabilization during establishment of <br />the perennial vegetative cover. Where mulch will be used to provide surface protection, the <br />application rate wilt be approximately 2000 pounds/acre. The straw will be anchored by <br />22-8 <br />