2004年7月16日,黄河水利委员会在郑州宣布:历时25天的黄河第二次调水调沙试验圆满结束。此次试验下泄水量43.75亿立方米,黄河下游主河槽得到全线冲刷,共计0.6071亿吨泥沙冲刷入海,且未发生一起漫滩灾难。至此,2002年、2003年和2004年黄河连续三次大规模调水调沙试验,将2亿多吨泥沙送 July 16, 2004, the Yellow River Conservancy Commission announced in Zhengzhou: 25-day Yellow River water and sediment tests completed successfully. The experiment discharges 4.757 billion cubic meters. The main channel of the lower reaches of the Yellow River has been washed off by a total of 0.6071 billion tons of sediment and washed into the sea without any floodplain catastrophe. At this point, in 2002, 2003 and 2004, the Yellow River conducted three large-scale water and sediment adjustment experiments, sending more than 200 million tons of silt