降雨径流系列的一致性分析

降雨径流关系是否发生变化，即不同时期降雨径流关系有无显著差异是一个生产中迫切需要解决的问题。本文以山西省榆社县云簇水库降雨径流系列为例，进行了降雨径流特性的分析，内容包括降雨径流双累积曲线的特性分析、年径流系数的变化过程分析、秩和检验、回归方程的差异分析等。得出云簇水库在１９７９年以前与以后，虽年径流深、年径流系数有差异，但降雨径流关系并无明显差异的结论。

Analysis on the Consistence of Rainfall Runoff Series

Whether the rainfall runoff mechanism has significant difference in different stages is an urgent problem to be solved in practice. In this paper,the consistence of rainfall runoff series is analysed concerning the hydrologic data of the Yunzhu Reservoir as an example.In the analysis,the double mass curve of rainfall-runoff relation,the change process of annual runoff coefficient,the rank sum test method and regression equation method are taken into account or analysed. The former two are used for making sure of the matter whether there exists a doubtful point which seems to be probably the cause having effect on the consistence of the rainfall runoff series,the latter two are used for analyzing whether the rainfall runoff series remains to be consistent,if the above stated doubtful point exists really.The analysis results in this paper were comparatively satisfactory.