今年7、8月间,四川连续两次遭到洪水泥砂的巨大危害。洪峰到达重庆时,长江流量8万多立方米/秒,含沙量达0.7％以上。即洪峰期间,每秒钟有500多立方米的泥沙流出三峡,淤到长江中下游。这给四川人民生命财产造成的惨痛损失,给长江中下游人民带来的严重灾难,实在惊人! 洪水过后,到处留下无数泥砂砾石,一般厚尺许,有的厚达2尺以上。沿江两岸那 During July and August this year, Sichuan was hit twice by floods and silt. Peak arrived in Chongqing, the Yangtze River flow of more than 80,000 cubic meters / second, sediment content of more than 0.7%. During the flood peak, more than 500 cubic meters of silt flow out of the Three Gorges every second and silt to the middle and lower reaches of the Yangtze River. This caused tremendous losses to the lives and property of the people in Sichuan and caused serious disasters to the people in the middle and lower reaches of the Yangtze River. After the flood, countless silt gravels were left everywhere, with thick scales generally exceeding 2 feet. That across the two sides of the river