通过统计花园口水文站历史洪水的水沙来源情况及断面定性或定量的冲淤情况,揭示了花园口水文站历史洪水与断面冲淤变化间的固有规律,验证了黄河下游河道“大水出好河”、“大沙多分岔”、“河床逐年淤积抬高”等特性,为该站的水情预报和黄河下游的防洪决策提供参考依据。 By analyzing the source of water and sediment of the historical flood in Huayuankou Hydrologic Station and the qualitative and quantitative scouring and silting of the section, the inherent law between the historical flood in Huayuankou Hydrologic Station and the erosion and deposition of the section was revealed. Out of good river “, ” Dasha bifurcation “, ” river bed siltation uplift "and other characteristics for the station’s hydrological forecast and the Yellow River flood control decision-making provide a reference.