黄河小北干流泥沙运动若干特殊现象

Some Special Characteristics of Sediment Transport in Longmen - Tongguan Reach of the Meddle Yellow River

作者以亲身经历，长期观察，发现黄河小北干流泥沙运动有：归槽泥沙走，漫滩泥沙停；刷岸泥沙走，漫流泥沙停；揭底泥沙走，溢岸泥沙停；出汊泥沙走，断流泥沙停，退水沟道冲，进滩泥沙淤少，岔流淤沙多等特点。

According to the experience and field observations, Some special characteristics of sediment transport in the reach from Longmen to Tongguan were found, The sediment movement would occur in the following conditions: (a) when the flow is reconcentrated in the channel. (b) when the bank is eroded. (c) when the 'bottom tearing erosion' happens. (d) when the branches are eroded and (e) when the flood is declined, etc. While the flow is over the floodplains or banks, the sediment would settle down.