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针对流域侵蚀泥沙计算问题,开展了基于流域泥沙库的流域侵蚀产沙模拟及泥沙冲淤变化研究。计算中考虑了河道塘库淤积作用的影响,分析了影响流域侵蚀和泥沙输移的主要因子,结合通用土壤流失方程并考虑流域泥沙输移,构建了流域侵蚀产沙模型。模型通过魏城河流域模拟验证取得了良好的效果。
Aiming at the calculation of sediment erosion in watershed, a simulation study of sediment erosion and sediment change based on sediment reservoir was carried out. In the calculation, the influence of siltation in ponds and ponds was considered. The main factors influencing river basin erosion and sediment transport were analyzed. Combined with the common soil loss equation and the sediment transport in the watershed, the model of erosion and sediment yield was constructed. The model has achieved good results through the simulation of Wei Cheng River Basin.