Laserfiche WebLink
<br />11. A separate cover standard is proposed for concentrated tree and shrub <br />establishment sites. This would require statistically adequate cover sampling of <br />these sites as a separate strata. Given the focus on establishment of woody plants <br />in these areas and the fact that competitive herbaceous species are not seeded, we <br />question whether this is warranted. Based on Table 22-10, the shrub establishment <br />areas comprise less than 4% of the total reclamation acreage. We believe it might <br />be more practical to include these small sites in the "sampling universe" for cover <br />and production sampling associated with the larger reclaimed areas in which they <br />are included, rather than requiring another separate layer of sampling requirements <br />and standards. The influence of potentially low cover values within the shrub <br />establishment areas would likely be minimal, (because the small areal extent would <br />result in a relatively small number of sample points within the shrub establishment <br />areas). <br />Please give consideration to this approach, and provide a response and amended <br />language, if you concur. <br />12. Please explainljustify the use of "first hit" herbaceous reference area cover for <br />success determinations associated with mesic drainage, as opposed to "all hit" <br />herbaceous reference area cover as described for the reclaimed uplands. <br />13. On page 43, there is reference to establishment of a production standard for haul <br />road corridor permanent reclamation areas based on historical production records. <br />Have statistically adequate samples been obtained from the various vegetation types <br />over a period of several years, as required by Rule 4.15.71211d-Iv-? Please confirm <br />and provide details if this is the case, or provide a specific plan for collecting the <br />required data. <br />Species Diversity <br />14. On page 44, there is discussion of the "competition-suppressed" forb and woody <br />plant presence, to be considered in development is species diversity success testing <br />approaches. Please give consideration to further modifications to the current <br />reclamation plan that might be practicable to enhance diversity, while still providing <br />acceptable erosion control. Such modifications might include seedmix amendments, <br />modified seeding approaches, modified soil handling practices, modified grading <br />approaches, modified management approaches, etc. <br />15. At the bottom of page 45, the example equation appears to be incomplete. The <br />complete equation would appear to be [25.21-[(1.15)x5.3]=19.1. <br />16. We have two comments on the lifeform similarity index approach proposed as <br />"Alternative Text B" on page 46. First, we believe the procedure would be clarified <br />if "c" were defined as "the sum of the smaller of the paired species density values <br />(for each life form) for reclaimed and reference areas". <br />A second, and more significant concern, is that species density is proposed as the <br />importance value to be tested, which is consistent with the proposal for Seneca II, <br />but differs from the Seneca II-W proposal, in which cover was the selected <br />importance value. Also, tour life forms were selected for the similarity testing in the <br />Yoast and II-W proposals, but eight life forms were selected for Seneca II. Please <br />consider these comments and amend the text as appropriate. Unless justification <br />can be provided, we believe that the test components should be consistent among <br />the three Seneca Coal Company permits. <br />