西藏阿里地区地下水资源的形成分布特征

分析了西藏阿里地区自然地理环境、水资源形成和分布及其利用状况，基于区内地下水资源形成环境条件的差异，本区地下水资源体系可分为南部河谷冲洪积层地下水系统和北部内流湖盆地下水系统。南部河谷冲洪积层储水条件较为优越、且补给水源充分，其地下水和地表水构成了一个统一的水资源系统和完整的水生态体系；而北部内流湖盆地区多为湖相沉积、且受气象因素制约，水资源多以固体形式存在，因而地下水资源总体贫乏。最后根据区内地下水的分布情况，对区内地下水提出了开发利用前景，提出了具体的对策和措施。

The Forming and Distribution Characteristic of the Groundwater Resource in Ali Area of Tibet

The physical geography environment, the forming and distributing of the water resource in Ali area of Tibet are analyzed, basing on the difference of the groundwater resource forming environment, the water circulation system can be divided into alluvium and diluvium groundwater of rivervale in south and flows-in lake basin groundwater in north. The reserves of alluvium and diluvium groundwater has better deposited condition, and the supplement of water resource is abundant; but most of flows-in lake basin area is lacustrine facies sediment, and/or the weather, water resource exist mainly as solid form, and the groundwater resource is indigence. At last, according to the distributing of the groundwater, the authors put forward the foreground of the exploitation and using, and corresponding countermeasures.