拉市海岩溶地下水补径排及地下水动态变化特征

LASHIHAI LAKE KARST UNDERGROUND WATER SUPPLEMENT,RUNOFF,DRAINAGE AND DYNAMIC VARIATION CHARACTERISTICS

拉市海位于丽江盆地西侧,为一断层构造湖,同时受灰岩溶蚀构造作用而成;区内岩溶发育形成了拉市海流域内地下暗河由文海向拉市海再向金沙江排泄的地下水系统特征;本文通过拉市海流域岩溶发育特征及地下水补径排特征的研究,对其地下水系统及地下水动态变化特征进行分析,为拉市海地下水资源规划提供指导意见。

Lashihai lake is a fault structure lake in the W side of Lijiang Basin,formed synchronously by limestone corrosion structure process.In this area,the karst development forms the underground river,and underground water drainage system from Wenhai to Lashihai,then to Jinshajiang river.In this paper,according to the study on the karst development and underground water supplement runof drainage characteristics,we have the analysis of underground water system and dynamic various characteristics,put forward the guide viewpoint for the underground water resource planning of Lashihai lake.