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Section 780.18 (b) Continued. <br /> <br />Rule 4.15 <br />Revised 12/3/80 <br />How To Control Wind Erosion. USDA, Agricultural Information <br />Bulletin No. 354, 22 p., who report that vegetative cover ~is the <br />most permanent and effective way to control wind erosion." These <br />authors report that the higher the residue stands above the ground <br />the more it slows the windspeed and lowers the rate of erosion. <br />This study also suggests that leveling and seedbed preparation <br />should be conducted "during the growing season when wind velocities <br />are usually low..." Temporary methods of erosion control are <br />mentioned to include a roughened,~loddy surface, placement of <br />artificial and earthen barriers and haul-in mulches. ~ As indicated <br />earlier Kerr Coal has proposed to leave all respread topsoil in a <br />rough condition. These techniques should adequately control the <br />limited amount of wind erosion on the respread topsoil. <br />Examination of existing soil textures at the Kerr Mine Area, Table <br />• 42, reveals that the dominant soil texture is that of a silty clay <br />loam. <br />Temporary stabilization of diversion ditches and sediment ponds <br />will be accomplished by seeding all disturbed areas with rapidly <br /> <br />780-73 ddd <br />