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三峡工程是举世瞩目全国关心的最大水利工程建设。它的任务是防洪、航运、发电,主要是防洪,因发电尚可用其他方案代替,而航运,特别是库末航运条件总比建库前有所退化。经分析,三峡工程的防洪效益弊多利少,三峡工程是否兴建,是值得重新考虑的大问题。长江一次的洪水量很大,以1954年为例,需要处理的洪水量为1023亿立米,目前加高堤防,需要处理的洪水量约500亿立米;三峡工程在正常发电水位以上有一个防洪库容,这个防洪库容有220亿立米。它与须处理的洪水量相比尚不到二分之一,故三峡水库的防洪能力是微弱的。而三峡防洪的严重性
The Three Gorges Project is the largest water conservancy project in the world that has drawn worldwide attention. Its mission is flood control, shipping and power generation, mainly flood control, because electricity generation can still be replaced by other alternatives, and shipping, especially the shipping conditions at the end of reservoirs, have always been degraded before the establishment of the reservoir. The analysis shows that the flood control benefit of the Three Gorges Project is less and less beneficial. Whether the Three Gorges Project is to be built or not is a big issue worth reconsidering. For example, in 1954, the flood volume required to be treated was 102.3 billion cubic meters. At present, there are about 500 billion cubic meters of floods that need to be handled. The Three Gorges Project has a flood control capacity above the normal generation level This flood control reservoir has 22 billion cubic meters. It is less than one-half compared with the amount of floods to be treated, so the flood control capacity of the Three Gorges Reservoir is weak. The severity of flood control in the Three Gorges