1977～ 1996年黄河下游水文断面反映的河床演变 原文发表于本刊 2 0 0 0年第 3期 ,作者 :牛占等。梁志勇 (中国水利水电科学研究院 ) :　　该文作者根据大量水文站实测资料 ,以及自己长期积累的实践经验 ,提出了自己对黄河下游河床演变的一些独到的看法 ,是很有特色的。对笔者 The riverbed evolution reflected by the hydrological section of the lower Yellow River from 1977 to 1996 was originally published in the journal No. 2 of 2003. Author: Niu Zhan et al. Liang Zhiyong (China Institute of Water Resources and Hydropower Research): Based on the measured data of a large number of hydrological stations and their long-term accumulated practical experience, the author presents his own unique view on the evolution of the riverbed in the lower Yellow River. To the author