黄河中游水沙频率关系研究

Study on the relation of frequency between flood and sediment in the Middle Yellow River

扼要指出进行黄河中游水沙频率关系研究的必要性,并通过对黄河中游部分连续泥沙观测序列的独立同分布性的检验,验证了建立黄河中游泥沙频率曲线的可行性以及泥沙序列对P-Ⅲ型分布曲线的适应性。在此基础上建立了黄河中游水沙序列的理论频率曲线,分析了黄河中游的水沙频率之间的关系,给出了一定泥沙频率条件下所对应的洪水发生的频率范围,对年径流量和输沙量的频率组合进行了量化,对水沙丰枯组合进行了确定,最后提出了有待于进一步研究的问题。

This paper points the necessity of studying the relation of frequency between flood and sediment in the Middle Yellow River. The feasibility of founding frequency curve for sediment and the adaptability of the frequency to the P-Ⅲ curve are proved. The frequency curves for flood and sediment in the Middle Yellow River are founded, and the relation of frequency between flood and sediment is analysed. Finally, the authors point that further study on this issue should be contionued.