| 黄河下游河型的特性及成因探讨 |
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| 关键词:channel pattern river character aggradation river regime |
| 基金项目:国家自然科学基金项目(编号:4010003)，中国科学院地理科学与资源研究所知识创新领域前沿项目 |
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| Channel Pattern Specialities and the Formation of the Lower Reaches of the Yellow River |
| There are three channel patterns along the Lower Yellow River, namely braided, meandering and straight. The cross sections of the three different channel reaches show that the braided channel varies frequently whereas the straight channel seems quite stable. The meandering reach is slowly extended upstream. The sedimentation or erosion is not continuous with the variation of annual transported sediments, but the aggradation is the general trend along the whole Lower Yellow River. The river regimes of the meandering and straight reaches are very similar to each other but are different completely from the regime of the braided reach. The braided channel evolvement results mainly from natural factors such as discharge and sediment supply; nevertheless, man behavior restrains the channel lateral migration in wider range. The meandering channel is the autoregulative result of a stream. The artificial banks accelerate its extension and restrict its continual lateral migration. The formation of the straight channel is mainly caused by man-made banks. |
| WANG Sui-ji.2003.Channel Pattern Specialities and the Formation of the Lower Reaches of the Yellow River[J].Acta Geoscientica Sinica,24(1):73-78. |
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