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retained on the list in a continuing attempt to reestablish some aspen areas on the mine site. It is obvious • <br />that native aspen stands in the mine area represent the limit of its range and occur only because of unique <br />soil and moisture regimes which are beneficial to aspen. Mueggler {1988) and DeByle and Windour (1985) <br />have noted the relationship between the presence of aspen and specifio-site conditions. These condtions <br />are no longer present in recaimed sites and thus the reestablishment of aspen on the mine site is <br />questionable. No success standard for aspen will be proposed. <br />As noted eadier under site preparation, planting areas will have competing vegetation eliminated or reduced <br />to the best extent possible. Experience and observations indicate control of competing vegetation over the <br />short term may only be partially beneficial since the suppressed herbaceous vegetation redevelops faster <br />than the seedlings can become adequately established or developed to become competitive. Peabody will <br />investigate the use of pre-emergent herbicides or other measures to aid in longer tens suppression of <br />competing vegetation. Recently, Peabody has initiated use of mycorrhizal innoculants in containerized <br />seedlings. These innoculants have been developed from soil resources collected from the Senece Mine <br />site. It is anticipated a more rapid reestablishment of plant-mycerrhizal relationships may aid in more rapid • <br />plant establishment and development. Big game depredation continues to be a serious problem in planting <br />areas. Use of repellants such as Deer-Away have been somewhat effective through the first growing <br />season. Measures will continue to be researched to extend the period of effective control. <br />Five mature shrub clump transplant areas will be established in the remaining areas to be reclaimed. If <br />implementation of this technology is incompatible with conGuding mining and reGamation operations, <br />seedling planting areas will be substituted. A discussion of the methods to be used in the live transplants <br />may be found later in this tab under Seeding and Planting Methods. <br />Various factors may adjust the final location of a planting or transplant area. These may include variation in <br />localized topographic relief due to final grading or the sequencing of operations that may split a planting area <br />into several years. In the latter case, it may be more beneficial to adjust the planting location to complete <br />the entire planting. The availability of better topographic relief or aspect, and hence better planting site, will <br />take precedent in locating a final planting site. • <br />1320 Revised 1/15/93 <br />