滇池宝象河流域全面产流与降雨关系初步研究

Study on Rainfall-runoff Correlation in Baoxiang River Basin of Dianchi Lake

在进行滇池宝象河流域入湖污染负荷总量核算时,涉及流域的水量平衡计算,地表径流和地下径流是两个重要的环节,两者联系密切,并且在水循环过程中相互转化。不是所有的降水都能补给地下水,进而产生地表径流,只有当降雨量大于某一临界值时,才有可能产生地表径流。全流域地表径流产生与降雨关系的试验研究,有助于分析当地气象因素以及降雨时段之初的包气带含水率和地下水埋藏深度,为污染负荷总量核算提供参考和借鉴。

The surface runoff and sub - surface runoff are two important processes with close relation when calculating the basin water balance. Not all precipitation can supply to sub - surface runoff to produce surface runoff, only when precipitation reaches a critical value. The study on rainfall - runoff correlation will be good to analyze water content in air inclusion zone and depth of sub - surface runoff, which provides references for total pollution loading calculation of Dianchi lake.