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methods of stabilization have been discussed earlier in this report. The results of these <br /> efforts are presented in Tables 3, 4 and 5. <br /> The data tables indicate that the relative volume of sediment generated from the mine <br /> bench outslopes has been reduced as a result of the project activities. A relatively greater <br /> degree of success was attained from the 2004 revegetation project than what was realized <br /> from the 1999 effort. In part, this was due to the lack of vegetative success in 1999 as a <br /> result of the regional drought experienced in the area. Some degree of a lesser <br /> germination potential can also be attributed to the loss of mulch cover in the fall of 1999. <br /> The greater success of the 2004 effort can be attributed to a more typical weather pattern, <br /> which allowed for greater moisture availability and a resultant increase in germination <br /> potential. The use of a tackifier to hold the mulch onto the slopes was a significant <br /> change in the scope of the project when compared to the 1999 work. Securing the mulch <br /> to the outslope surface aided greatly in shading the seed, retaining moisture on the slopes <br /> and adding organic material to the slopes. <br /> Another significant factor in reducing sediment generation following the 2004 project <br /> were the steps taken to disperse the contributory flows to the slopes from upland areas. <br /> Manipulation of contributing flows, creating a more dispersed flow pattern through the <br /> use of straw wattles and intensive tree planting, helped to reduce gully activity, reduce <br /> water velocities and increase slope stability. This influence can be observed at the Mine <br /> 5 Fan site. The sediment yield model shows that sediment generation decreased, albeit <br /> slightly, following the 2004 work, even though a significant ground cover was not <br /> established at the site. Therefore, the decrease in sediment is attributable to water in-put <br /> manipulation at the crest of the outslope. <br /> The mid-slope tree band plot established at Mine 1 East in 2000 was successful. <br /> Approximately sixty to seventy percent of the trees survived. The root systems of the <br /> trees should act to hold relatively near surface particles in place, while the stems will tend <br /> to help disrupt surface flows, resulting in decreased flow velocity and reduced gully <br /> development while encouraging stabilization of existing gullies. As they mature, the <br /> trees may also help to establish an understory vegetative community by providing shade <br /> to the slopes, and a somewhat shallower slope angle at the tree band locations. For these <br /> reasons the tree banding was replicated at most of the outslopes, and at multiple <br /> elevations at each outslope. <br /> The shrub and willow plantings that were incorporated into the 2000 tree planting test <br /> plot on the Mine 1 East outslope were much less successful than the tree planting work. <br /> Virtually none of the shrubs and willows survived for an appreciable length of time at the <br /> locations planted. It is likely that the willows failed simply as a result of a lack of <br /> available moisture. The shrubs lack of survival may also be partially attributable to a <br /> lack of moisture, but it is thought that at Mine 1 East"soil" shear of the plant stem may <br /> have played a significant role in plant mortality. Near surface particle movement was <br /> observed to occur in this location. The shearing movement of outslope particles across <br /> the relatively fragile shrub stems may have resulted in the lack of appreciable survival <br /> 14 <br />