自2011年开始,长江防总对三峡水库连续三年实施了生态调度试验,为长江主要渔业资源四大家鱼创造产卵条件,结果表明生态调度达到预想效果,四大家鱼“鱼卵汛”多次出现。由于三峡大坝的拦蓄作用,长江自然涨水过程消失,以四大家鱼为主的长江鱼类产卵受到影响。所谓生态调度,就是在四大家鱼产卵期间,持续增加三峡水库放水量,人为造成江水 Since 2011, Yangtze River Fangzong has carried out ecological dispatch tests for the Three Gorges Reservoir for three consecutive years, creating the conditions for laying eggs for the four major fish species in the Yangtze River. The results show that the ecological regulation reaches the expected effect, and the four major fish " Appeared many times. Owing to the blocking effect of the Three Gorges Dam, the natural uplift of the Yangtze River disappeared and the Yangtze River fish species dominated by the four major domestic fish were affected. The so-called ecological scheduling, that is, during the spawning of the four major fish, continued to increase the Three Gorges Reservoir discharge, artificially caused the river