黄河中游“03.7”洪水特性分析

Analysis of “03.7” flood characteristics in the middle reach of Yellow river

黄河中游是黄河洪水的主要来源区之一[1]。本文通过对2003年发生在河曲～府谷区间"03.7"洪水的成因、组成和演进的介绍,初步分析了其暴涨陡落,峰高量小,含沙量不大的特性,并指出应加强该地区降雨产流、产沙以及龙门～潼关河段洪水演进规律的分析研究。

The middle reach of the Yellow river is one of main resources of storm floods. This paper ordinarily analyzes its characteristics that the flood fluctuates rapidly, its peak is much big, water volume is small especilly and the sediment concentration is not higher than usual by description of the formation and propagation of the ‘03.7’ flood from the Hequ—Fugu region in the middle reach of Yellow river, then advises that laws on rainfall-runoff and storm-sediment in the Hequ-Fugu region and flood propagation in reach from Longmen to Tongguan in the middle Yellow river should be analyzed and researched further.