本文分析了黄河4次调水调沙进入山东河段的水、沙情况和不同河段的冲淤情况。连续4年的调水调沙实践成果证明,“调水调沙”对于调整下游河道断面形态、扩大下游河道主槽过洪能力、缓解“二级悬河”的不利局面等均具有重要的作用,取得了巨大的社会经济效益。 This paper analyzes the situation of water and sand entering the Shandong reach and the scouring and silting situation in the four reaches of the Yellow River. Successive four years of water and sediment control results show that “water and sediment adjustment ” for the adjustment of the shape of the downstream channel section, expanding the main channel of the downstream river flood capacity, ease the “secondary hanging river ” unfavorable situation Dengjun Has an important role, has made tremendous socio-economic benefits.