中国西北干旱区的地下水资源及其特征  

Groundwater resources and their characteristics in arid lands of Northwestern China

作　　者：胡汝骥[1] 樊自立[1] 王亚俊[1] 姜逢清[1] 

机构地区：[1]中国科学院新疆生态与地理研究所,新疆乌鲁木齐830011

出　　处：《自然资源学报》2002年第3期321-326,共6页Journal of Natural Resources

基　　金：国家重点基础研究发展规划项目(G1999043502;G1999043509)基金资助。

摘　　要：分析了中国西北干旱区自然地理环境、水资源形成和分布及其利用状况,重点讨论了该区地下水资源分布的地区差异与赋存特征。该区平原地下水资源是山区水资源(包括降水和雪冰融水)在平原区内的转化;山区水资源是内陆河流和平原地下水的惟一补给来源;盆地平原地下水和地表水构成一个统一的水资源系统、独立的水文单元和完整的水生态体系。充分了解干旱区降水—地表水—地下水资源链的特征,正确认识干旱区“三水”转化自然规律,合理利用“三水”,对该区域社会经济持续发展具有重要意义。In this paper the physical geographical setting,the formation and distribution of water resources and their utilizing situations in arid land in Northwestern China are analyzed.The dis-tribution and storing characteristics of groundwater in this region are discussed emphatically.In general,the groundwater resources in the plain area are transformed from water resources(in-cluding precipitation and melted water of snow and glacier)in the mountainous area and the latter is the only source of the former.It is believed that the groundwater in the plain area to-gether with the surface water construct a coherent water resource system,an unique hydrologi-cal unit and a complete water ecological system.Therefore,the features and the regularity of the transformation of the three types of water resources(the precipitation,the surface water,and the ground water)should be fully understood,which will play an important role in the sustainable development of this region.

关 键 词：中国 西北干旱区 地下水资源 特征 三水转化 地区分布 水生态体系 水循环系统 

分 类 号：P641.8[天文地球—地质矿产勘探]