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使用美国通用流失方程 ( USLE)计算出四川清平水库流域 1 2个自然集水区域的高地潜在侵蚀量 ,并用0 .2的输沙系数计算出每年流入水库中的泥沙为 1 9.32万 t,同时也计算了氮磷进入水库的数量 ,文中讨论了 USLE模型在山区水库流域的适用性和模型参数的率定方法。
Using the USLE, the potential erosion of the highlands in 12 natural catchments of the Qingping Reservoir Basin in Sichuan Province was calculated. The annual sediment transport into the reservoir was calculated to be 0.132 million tons using the sediment transport coefficient of 0.2. Meanwhile, the amount of nitrogen and phosphorus into reservoirs was also calculated. The applicability of the USLE model in mountainous reservoirs and the calibration of model parameters were discussed.