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9. Erosion and Sedir..entation <br />• Erosional stability of the rrcl.;:i:ued tracts would a en- <br />hanced by contour furrom~i.nl„ by le.win{; the -surfaca as <br />rough as possible, and by .cunstnlction of ten aces, check <br />dams, pOR(15, etc., as propused in Section II (Proposed <br />Action). To Minimize around-c:n[~r leaci>.in~ of the spoil <br />materials as previously described, however, tl~ose ~racti.ces <br />should be avoided that pond water and are relative:p long <br />lived. (ho stock or cildlife ponds constructed on spoil <br />materials.) <br />Studies by Branson, et al. (I9G6) slioia that contour furrows <br />are especially useful in establi__=hind a plant cover in <br />areas of otherwise rapid runoff. These structures fill <br />• rapidly with sediment and store little or no water after <br />about five years. Yet their beneficial effect on tae plant <br />cover is readily apparent long after the furrow is gone. <br />Contour furrows and contour terraces that do not pcnd water, <br />therefore, are recommended erosion control measures. <br />Similarly, a roughened surface would be beneficial pro- <br />vided that depressions are small and soon obliterated as <br />local erosion and sedimentation smooths the surface once a <br />stabilizing plant cover is established. <br />Check dams should be small and permeable so as to reduce <br />flow velocities without ponding water. Interception and <br />storage of water in ponds for use by livestock and wildlife <br />• should be minimized or avoided on the reclaimed spoils. <br />147 <br />