DISCUSS ON ENRICHMENT MECHANISM OF GROUNDWATERIN THE REPRESENTATIVE WATER-SHORTAGE AREASOF THE NORTHWESTERN CHINA

摘要

The 5 provinces in the northwest of China including Shanxi, Gansu ,Ningxia ,Qinghai ,Xinjiang and the western InnerrnMongolia Autonomous province are the most representative arid and semiarid areas, which has an area of 330×104 km2. It is watershortage,rnthat not only restricts the condition of people's life，but also affects the economical development in these regions. In thisrnpaper, according to the results of hydrogeology investigation and experiences summed up by our predecessors, we discuss on thernenrichment mechanism and exploitation pattern of groundwater in the representative water-shortage areas of the northwest. We try tornoffer the technical guide on hydrogeology investigation and groundwater exploration in similar regions.