黄河河势演变

Variation of river regime of the Yellow River

河势演变主要是指河道水流平面形式的变化。黄河是世界上河势演变最复杂的河流。为给河道整治提供依据,笔者对黄河游荡性河段、弯曲性河段以及由游荡向弯曲转变的过渡性河段半个世纪的河势演变进行总结、研究,提出黄河河势演变的特性及河势演变的基本类型。

Variation of river regime refers to the planar changing of the main course.The Yellow River is the most complicated one in river regime changing in the world. The author analyzed and reviewed the variations of river regime in wandering, transitional and meandering reaches in the Lower Yellow River for a time period of 50 years. The obtained conclusion may be used for providing a technical base for river training. The characteristics and basic types of variation of the river regime of the Lower Yellow River were pointed out.