The sediment loss gross amount increased by power function with the increase of slope gradients.

泥沙流失总量与坡度呈幂函数递增关系。

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Vegetation cover is effective on the reduction of soil erosion and sediment loss. About 80% SS could be cut down when the coverage changed from 50% to 90%.

植被覆盖可有效地减少泥沙流失，当植被盖度从5 0 %上升到90 %时，泥沙流失浓度可减少80 % 。

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With delay of runoff yield time, the nitrogen concentrations in runoff and sediment drop off, whereas, the accumulation amounts of nitrogen loss rise gradually.

泥沙氮素含量随着产流时间的延长呈下降趋势，而流失累积量测呈逐渐增大趋势。

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