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and unavoidable with regard to the existing vegetation. <br /> Crushing, conveying, dumpiAg_ and hauling will produce <br /> dust that may settle on plants and cause a reduction of <br /> photosynthesis. This impact is minimal especially if dust <br /> suppression practices are followed. Fugitive dust will be <br /> produced as long as the project continues but should not <br /> be a problem for the surrounding vegetation. <br /> Mitigation of surface disturbances will involve a two-step <br /> process . The first requires grading, smoothing and shaping <br /> the mined areas into the necessary forms. Topsoil must be <br /> spread over .these surfaces prior to their preparation as <br /> proper seed beds . The second aspect is to initiate a <br /> • revegetation program. Revegetation will be done primarily <br /> with native species in order to establish a plant community <br /> which can thrive on available precipitation. <br /> Surface disturbances , as a type of impact , can be reduced <br /> by careful reclamation and revegetation programs. Vegetation <br /> recovery times can be reduced by improving the substrate by <br /> adding topsoil and also by replanting native species character- <br /> istic of surrounding sites . Mitigation by reclamation and <br /> revegetation is a very useful tool for minimizing impacts <br /> • caused-by surface disturbances . <br /> F-18 <br />