喀斯特流域结构与枯水径流研究

A primary study on the structural character and low flow effect of the karst drainage basin

从喀斯特流域系统出发 ,阐述了喀斯特流域结构的分类和特性 ,并从枯水退水过程及枯水径流效应角度阐明喀斯特流域结构复杂。在分析流域面积形态结构时 ,利用了流域多年平均降水入渗模数推求其枯水发生前月的降水入渗量 ,并证明用枯水发生前月的降水入渗量与枯水发生月月均径流模数来反映流域枯水期的闭合性是可行的。同时也揭示了流域结构与枯水径流功能的过程响应关系 。

From the view point of the system of karst drainage basin,this paper describes the characteristic and classification of the structure in karst drainge basin.From the decline process and the eigenvalue of low flow, we know that the structure of karst drainge basin is complicated.In time of acreage configuration structure, this paper proves that it is feasible that the closing of karst drainage basin is reflected through the infiltration of precipitation that is calculated by even pervasive and the modulus of low flow. At the same time,we demonstrate the relationship between the function of low flow in answer to the structure of drainage basin,karst drainage basin with the characteristic of big system is testified.