前言黄河下游河道长835公里,除郑州黄河铁路桥以上和山东梁山十里铺至济南田庄南岸为山岭外,其余河段均束于两岸大堤之间。河道上宽下窄,位山以上两堤之间5—20公里,位山以下0.4—5公里。按照河床演变特性划分,高村以上285公里为游荡性河 Foreword The lower reaches of the Yellow River 835 km long, with the exception of Zhengzhou Yellow River Railway Bridge above and Shandong Liangshan Shilipu to Jinan south coast of the village for the mountain, the rest of the river are bundled in the two banks of the embankment. The width of the river is narrow and narrow, 5-20 kilometers above the hill between two embankments and 0.4-5 kilometers below the hill. According to the evolution characteristics of the river bed, 285 km above the village is a wandering river