单 位：
河海大学水文水资源学院;河海大学水文水资源与水利工程科学国家重点实验室;宁波市水利水电规划设计研究院
关键词：
贵州喀斯特;枯季径流;退水曲线;退水指数;地形因子;地形指数
摘 要：
为了探讨贵州喀斯特地区枯季径流的退水规律,选取Depuit-Boussinesq退水方程对流域退水进行模拟,将退水指数与从DEM数据提取的各种地形因子之间进行分析。结果表明:地形指数基本与退水指数成正比;退水指数与基流指数成反比;岩性和喀斯特地貌对退水指数的影响较大,这两项指标不仅决定了径流的成分,还决定了退水的时间与速度。
译 名：
Analysis on Low-flow Recession Influencing Factors in South Karst Basin
作 者：
HAO Qing-qing1,CHEN Xi2,MA Jian-liang3(1.Department of Hydrology and Waters Resource,Hohai University,Nanjing 210098,China;2.State Key Lab.of Hydrology Water Resources and Hydraulic Eng.,Hohai University,Nanjing 210098,China;3.Ningbo Hydraulic & Hydroelectric Plan,Desian and Research Institute,Ningbo,Zhejiang 315016,China)
关键词：
Guizhou karst;low-flow;recession curve;recession index;terrain factor;topographic index
摘 要：
In order to study of the low-flow recession law in Guizhou kasrst area,we select the Depuit-Boussinesq equation to simulate ressesion flow.Then we discuss the relationship between recession index and several kinds of terrain factor extracting from DEM.The results showed that:topographic index is directly proportional to recession index;recession index is an inverse proportion to base-flow index;Lithology and karst geomorphology has large influence on recession index and both of the two indicators not only determine runoff composition,but also determine recession's duration and speed.
