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• Section 780.181b) Continued. <br />reclaimed area account for at least 54 percent of the plant composition but not more <br />than 75 percent of the plant composition. At least one 111 of the three (31 dominant <br />species shall be a forb and none of the three dominant plant species shall comprise <br />less than three (31 Percent of the total plant composition. <br />The woody plant density standard for both the Kerr Mine and Loadout areas was <br />specified by permit stipulation in 1982. The initial standard proposed by Kerr and <br />accepted by the MLRD, set a woody plant density standard at 2,000 woody plants per <br />acre. Although Kerr originally proposed to restore 2,000 stems per acre, it has <br />become apparent that this level of woody plant density cannot be achieved within a <br />reasonable time frame and may not be desirable in view of postmining land use <br />objectives. <br />Pursuant to the requirements of Rule 4.15.817) Kerr proposes that a shrub density of <br />1,500 stems per acre, with high density shrub stands interspersed with low density <br />stands with open meadows, be established as the standard for evaluation of the Mine <br />Area revegetation success. <br />The existing approved reference areas are representative of the associated plant <br />community and soils types as discussed in Section 779.19 and 779.21. The exact <br />locations of the existing reference areas are depicted on the Kerr Mine Area Vegetation <br />map, (Map 181, and the Kerr Tipple Area Vegetation Map, IMap 9a1. A summary of <br />vegetation data for areas to be disturbed and reference areas is presented on Table 48, <br />Statistical Summary of Vegetation types. This summary demonstrates the statistical <br />similarities between baseline conditions for disturbance areas and the corresponding <br />reference areas. <br />If a specific reclaimed area can be correlated to a single predisturbance plant <br />community, then Kerr proposes to directly evaluate revegetation success for that area <br />using data from the corresponding <br />TR-19 780-84b Revised 12/99 <br />