花园口决堤,造成黄河历史上第一次人为的改道。黄河在夺淮入海途中,挟带巨量泥沙肆意漫决,形成了大范围的黄泛区,严重破坏了泛区原有的生态环境。生态环境的恶化给泛区的经济、社会生活造成了长期的负面影响。 Huayuankou embankment, resulting in the first man-made diversion of history in the Yellow River. The Yellow River won the Huaihe into the sea, carrying a huge amount of sediment indiscriminately, forming a large area of ​​the Yellow River, seriously damaged the original ecological environment in the Pan-region. The deterioration of the ecological environment has caused long-term negative effects on the economic and social life in the pan-European region.