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三峡坝址多年平均径流量4510亿立方米,平均含沙量1.19千克每立方米。水库建成后,上游水位抬高,流速减慢,必然要发生水库泥沙淤积。但是经过长期研究,三峡水库的运用调度将采用“蓄清排浑”的方式,可以使水库长期有效地发挥效益。“蓄清排浑”的水库运用方式,是在每年汛期水中含
The average runoff of the Three Gorges Dam site for many years is 451 billion cubic meters with an average sediment concentration of 1.19 kilograms per cubic meter. After the completion of the reservoir, the water level in the upper reaches will be raised and the flow rate will be slowed down, which will inevitably cause sedimentation in the reservoir. However, after a long period of studies, the operation and dispatch of the Three Gorges Reservoir will adopt the method of “clearing and discharging muddy” so as to enable the reservoir to exert long-term and effective benefits. The “clear and clean” reservoir is used in the annual flood season