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Therefore,the species diversity standard for Trapper Mine reclaimed rangeland areas is as follows: <br /> 1) At least five principle species including a minimum of four cool season perennial grasses and a <br /> minimum of one perennial forb shall be established. <br /> 2) Each principle species shall contribute no less than 3.0% relative cover. <br /> 3) No single species shall contribute in excess of 50% relative cover. <br /> 4) No four species in combination shall exceed 80% relative cover. <br /> This approach will ensure a similar diversity of principle species in the reclaimed plant community as <br /> existed in the pre-mining plant communities. It will also provide safeguards against establishment of <br /> vegetation monocultures involving only a single or a few plant species. <br /> 4-121 a <br /> Revision: -T-C-H <br /> Approved: 211rghl <br />