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~• 19 Soil Loss (A) on U,rl; ~,r~,c,~a Soils Soil loss was calculated for each site by the USIE factors measured at that site. Data for vrd-~++,~ sites were separated fns reclamation stations (the numbering system included stations in Mann Draw aryl the existing settling ponds, thus the numbering changes) (Table 5). Calculated soil lass averaged 4.57 tons/acre/year with a range of 0.44 to 14.21 tons/acre/year. are allowable soil lass (Tj for the Fluetsch aryl Tiagos soils is 5 tons/acre/year (USDA, 1973). Etridenoe of overland flow, either washed litter or rill initiation was c®ort on the undisturbed sites. Rills had anus`---~' to form larger rills and even gullies. Gully development was observed at stations 18, 19, 38 and 41, with cross sectional areas of up to 0.1 square meters. Gully development was associated with either long and steep slopes or areas of oorrave topography, areas that often result in larger tributary sourzps for runoff or overlarrl flaw. " No particle sorting or puddling by raindrop splash was observed on any site, probably due to the law clay and silt content of the surface soils. Soil Loss (A) on Reclamation Sites Similar procedures were followed on the reclamation area. aye soil erodibility factor (IQ averageri 0.11, indicating reclamation practiops do mt adversely affect soil erodibility by increased soil density ar decreased soil porosity. As the reclamation vegetation maturv^, annual biomass contributions or additions to the soil will increase soil organic matter and decrease soil erodibility. Cover was determined as described, earlier, the reclamation cover factor (C) averaged 0.49 (60 percent Dover) (Table 6) as ocaipared to 0.66 (38 peropnt over) for all urdistin:i~ed plots. aye C factor for the reclamation plots is conservative. aye narograph used to estimate C, atc~mwa an average canopy height of 0.5 m, the grass re~Pi' is less than 0.5 m high and the intercepted Nl•~ ~ ~~