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2011-07-15_PERMIT FILE - C1981019A
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2011-07-15_PERMIT FILE - C1981019A
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Entry Properties
Last modified
12/13/2016 11:04:45 AM
Creation date
9/9/2011 12:34:45 PM
Metadata
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Template:
DRMS Permit Index
Permit No
C1981019A
IBM Index Class Name
Permit File
Doc Date
7/15/2011
Section_Exhibit Name
4.15 Revegetation Requirements
Media Type
D
Archive
Yes
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Colowyo's new reclamation plan, includes management and revegetation specifications <br />(e.g., shrub species in the seed inix) for use on the "grassland" targeted areas: that will <br />facilitate additional shrub establishment when climatic or other conditions are favorable. <br />In this manner, small and /or scattered patches of additional shrubland may be established <br />that will provide improved habitat diversity, especially for sage grouse. However, since <br />this type of reclamation is entirely dependent on the vagaries of nature, dependence upon <br />such techniques cannot be relied upon. <br />Where shrublands evolve on these "sagebrush community attempts ", they will be <br />segregated into "core" areas and "ecotonal" areas (as is typically evident in nature), each <br />with a separate woody plant density success criterion. Furthermore, it has been noted <br />repeatedly in the industry that the 10 -year bond responsibility period is insufficient for <br />the adequate development of shrub populations. In this regard, flexibility must be built <br />into the success evaluation process (and/or criteria) so that if a positive recruitment rate to <br />the shrub population can be documented on Colowyo revegetation, there would be no <br />need to achieve elevated densities within a modest time -frame such as the 10 -year <br />responsibility period. <br />Given these points, the following woody plant density success criteria will be applied to <br />Post -2008 revegetation efforts: On grassland communities (approximately 60% to 80% <br />of reclaimed acreage ( >10% slope) targeting the post- mining land use of grazing - land), <br />zero woody plant density will be required. However, if shrub communities evolve in <br />these areas this acreage will count toward the wildlife habitat acreage and be subject to <br />the appropriate standards. On manifested shrublands (approximately 20% or more of <br />reclaimed acreage targeting the post- mining land use goal of wildlife habitat — sage <br />grouse brooding habitat), the following criteria will be applied depending on shrubland <br />classification. On "core areas" (areas of shrub concentration and comprising no less than <br />one -half the minimum total shrubland acreage), the eventual desirable goal shall be 1000 <br />plants per acre, but the standard shall be 375 live plants per acre. At least one -half of <br />these totals shall be sagebrush species. In "ecotonal areas" the eventual desirable goal <br />shall be 500 plants per acre, but the standard shall be 200 plants per acre. The 375 and <br />200 plants per acre standards translate to approximately one plant for each 10.4ft. x <br />10.4ft. or 14.8ft. x 14.8ft. area, respectively. Furthermore, Colowyo makes the <br />commitment to establish sagebrush steppe (comprised of both core and ecotonal areas) on <br />approximately 450 acres of the post -2008 reclamation for the original and South Taylor <br />permit areas, or as otherwise agreed upon between Colowyo and CDRMS. This acreage <br />is based on the following rationale: 1) delineation of all post -2008 post- mining acreage <br />exhibiting slopes 10% or flatter; 2) elimination of all small, isolated, or impractical areas <br />for targeting this community; 3) implementing "banding" (alternating strips of grassland <br />versus shrubland) procedures on large units with long slopes that might otherwise lead to <br />excessive "snowmelt" erosion; and 4) assuming 50% shrub establishment success on the <br />acreage that actually receives shrub conducive metrics. <br />Issues with the potential longterm longevity pf fourwing saitbush will require that a <br />maximum proportion of the countable shrubs used to demonstrate conformance with the <br />4.15 -31 Revision Date: 6/21/11 <br />Revision No.: TR -84 <br />
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