从2002年起,为扩大黄河下游主河槽过洪能力,减少小浪底水库淤积,国家已连续8年利用小浪底水利枢纽和上游三门峡等水库联合调度,实施调水调沙试验,有效冲刷了水库泥沙和下游河槽,改善了下游河道和河口生态状况。但是,黄河小浪底水库调水调沙对黄河下游渔业资源及生态环境也造成很 Since 2002, in order to expand flood capacity of the main channel of the lower Yellow River and reduce siltation of the Xiaolangdi Reservoir, the state has been using the Xiaolangdi Multi-purpose Dam and the Sanmenxia Upstream Reservoir for a total of 8 consecutive years to carry out water and sediment adjustment tests, effectively flushing the reservoir sediment And downstream fluvial channels, improving the ecological status of downstream rivers and estuaries. However, the water and sediment regulation of the Xiaolangdi Reservoir in the Yellow River also caused great impacts on the fishery resources and ecological environment in the lower Yellow River