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'r 41 <br />Slope lenxJth and slope stec~ess axe critical factors in etvsion potential, <br />since they determine in large part the velocity of runoff. Z~re energy (and thus <br />the erosive ~*~*~*;a1) of flowing water incnea...e, as the square of the velocity. <br />Long, oontitn~ous slcnpes allow na~off to build up momenttan. Zhe hick-velocity <br />i runoff tends to oonoersttate in nanvw ~~*+*+ar s and produce rills and gullies. <br />'Ihe shape of a slope also has a major bearing on erosion potential. ire <br />base of a slope is more suscP{nt;hle to erasion than the top, bemuse nmoff has <br />more momentum and is more oorroerrttated as it approac3~es the base. Oonstructirg a <br />convex slope magnifies this problem, whereas a concave slope reduces it (included <br />in final. contours). leaving a relatively flat area at the base of a slope <br />(included in final oontaas) mt only reduces erosion but also allows sediment <br />from the upper portions of the slope to settle art. <br />If there is an abrupt charge frsm flat upland to concave downslope, water <br />flowing over the top of the slope may iIIldescvt the slope. Ra1rdtrg the upper' <br />slope m;,,;mazes this problem and creates amore stable slope, which has the <br />appea_*~*+ra of a natural hillside (included in final contours). <br />Monitorira and Reaortina <br />'13]e effectiveness of the alternative sediment control strategy to be <br />impl~**t~ at the Hotu.~g Mine will be monitored throughout the bonding period. <br />Monitoring will be oonduated anrwally and include vegetation corer estimates, <br />r identification of bare areas ala~rg with rill anri gully formation. Arnn~al reports <br />will be prepared for MLRD as to the effectiveness of the control ~~~*~ being <br />used. <br />As d;~-„sit earlier, slope and length-slope weze highly correlated to soil <br />lass (r~.96). In other words, slope and slope-lergt2l axe the two factors that <br />axe most infl»~*+~~at in predicting soil loss. Vegetation caves, on the other <br /> <br />