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1. Ripping and grading <br /> 2. Soil conditioning <br /> 3. Topsoiling <br /> 4. Substrate stabilization <br /> Reclamation plant materials testing and selection was <br /> initiated in conjunction with site preparation procedure devel- <br /> opment. The number of plant species possessing adequate revege- <br /> tation potential for disturbed lands at the Silverton site is <br /> extremely limited by intrinsic conditions of the local habitats, <br /> and commercial availability. Some 60 accessions of introduced <br /> and indigenous grasses, forbs, and shrubs were tested and evaluated <br /> in the revegetation test plots. Plant materials were selected <br /> for evaluation in reclamation test plots based on revegetation <br /> potential . The plant species were then selected for use in the <br /> reclamation program based on vigor and vitality ratings which re- <br /> vealed the degree to which each species was adapted to the sum of <br /> biologic and physical forces operating on respective sites. <br /> Species which have displayed the best results in the test plots <br /> over the last five years, possessing the highest revegetation <br /> potential are listed below: <br /> Excellent <br /> (grasses) (forbs or shrubs) <br /> Elymus triticoides Shoshone Artemisia ludiviciana EPC-328 <br /> Elymus giganteus Volga Potentilla fructicosa EPC-351 <br /> Poa compressa Reubens Salix sp. <br /> Festuca ovina Duran Chrysothamus parryi <br /> Bromus inermis <br /> Agropyron smithii Arriba <br /> Page 16 <br />