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.,.ci at which a spau'tes may hs used in a given year. Table 22-$, Shrub and Tres Planting Lists, lists <br />the primary spacial and addition;subsbtute species Eo be used in pianting areas, The spepeS seleCTed <br />represent those native species which have a better opportunity for establishment considering the mare <br />xsric ails conditions nt zha reclaimed areas. <br />Aspen has been retained 4n the list in an attempt t4 reestahiisn soma aspen areas in appropriate seas, <br />it available. The native aspen stantls m the mina area represent the limit of this xpecies range antl <br />occur only because of unique soil, substrate, and moisture regimes which era tsenafiaal t4 aspen. <br />Musgglar 11988} and gaE}yte and Winokur {79$5V have nptsd the reiatianship between the presence of <br />aspen and spsaific arts conditions. Many Or all of these site conditions are na longer present in <br />reclaimed sites Over Spoil and thus the reestablishment of aspen an the mine site is difficult of best. <br />Aspen will be planted in salert upland sites and will be included in the mesic drainage tree and shrub <br />sites. The upland aspen sites will receive normal topsoil replacement depths. Revised Exhibit 22•i, <br />r^oSTmining Vegetation, shawl the aspen upland sites and the mesic drainage sites. The two upland <br />aspen sites are located in surficial disturbance areas which should allow critical aspen substrate <br />charatteristics to be maintained. In addition, aspen disturbance in the vicinity of these two sites wJt <br />be minimized to that necessary t4 complete topsoil stockpiling, access, and final grading. Since aspen <br />reestablish primary by suckering, adjacent undisturbed aspen cianal stands can increase the tiketihoad <br />of aspen rsinvasi0n in these areas of minimized surface disturbance. <br />As Hated earlier under site preparation, planting areas wdi have competing vegetation eliminated ar <br />reduced to the best extent passible, The, planting areas lexcepting the upland 'aspen sitesi will receive <br />approximately 0.5 feet 4f tapsnii and wip be deep ripped t4 a depth Of 1.5 teal. The permanent seed <br />mix will not he seeded in these areas. Experience and Observations 4f piantatl sites at the Seneca it <br />1<Aine intlicate O4ntroi of aompetinq vegetation aver the short term la.g., using mechanical tiilagel may <br />aniy be partially 6anaficiai sinsa the suppressed herbaceous vegetation rsdevelnps faster than the <br />saed{ings can become adequately established to e0mpete with herbaceous vegetation. The use of pre <br />emergent herbicides or other herbikidas to ai4 m Inngar term suppression of Competing vegetation will <br />tae a necessary component of this program, Merbicides are discussed under weed control. <br />st Revised 2199 <br />