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Commitments regarding future management and research associated with the aspen study <br />are addressed in Section 7.0 and Section 9.0 of permit Appendix 22-3. In section 7.0, the <br />plan notes that "iffirst-season drip irrigation proves to be successful in allowing aspen to <br />survive transplanting, additional research might be necessary...". Potential topics for <br />continued research are stated to include: <br />• How long will supplemental irrigation be necessary? <br />• Will transplants be capable of re-establishing clones through root <br />suckering? <br />• What will be the long term growth and survival rates? <br />• What approaches will be necessary to "wean" transplants from <br />supplemental irrigation. <br />Within Section 7.0, SCC commits to submit information and/or requests for additional <br />study no later than December 2006, and further commits that supplemental irrigation will <br />continue through the 2006 field season at a level of irrigation to be determined by the <br />2005 study results. Within Section 9.0, SCC indicates that, if the studies and field trials <br />prove successful, "SCC will apply these techniques to the aspen establishment plots as <br />depicted in Exhibit 22-1 and 22-1A, Post Mine Vegetation Map". Section 9.0 contains <br />the further commitment that "SCC will make an evaluation of these trials and tests by the <br />fall of 2008". <br />Comments on Pilot Study Report and Presentation <br />Ob j ectives/Meth ods/Results/Conclusions <br />In the study plan, the two soil treatments in the primary study site are described as <br />rotocleared and non-rotocleared ("modified" and "normal" on the study plan <br />schematic). My understanding was that both soil treatments were to have been <br />"direct haul" from the salvage area to the study site. However, this apparently <br />may not have been the case. In the study plot layout included in the report, the <br />soil treatments are labeled "fresh topsoil" and "stored topsoil". Apparently, the <br />rotocleared soil may have been direct haul, but the non-rotocleared soil may have <br />been stored in a short term stockpile for some period of time. If this is the case, <br />interpretations based on the soil treatments will be complicated; since observed <br />differences maybe the result of the different salvage techniques (rotocleared vs. <br />non-rotocleared), or they may be the result of differences inpost-salvage handling <br />(short term stockpiling vs. direct haul), or some combination of treatment effects. <br />In any case, there were rather dramatic differences between the two soil <br />treatments for many of the attributes measured, and as such, it is important <br />that the treatments be fully defined. The methods and timing of soil salvage, <br />length of storage and approximate dimensions of storage piles, and timing <br />and methods of transport, placement, and final grading for each of the two <br />soil treatments should be described in detail in the Methods section of the <br />report. <br />