• 责任者：Su Yonghong (Laboratory of Watershed Hydrology and Ecology & Alashan Desert Eco-hydrology Experimental Research Station of Cold and Arid Regions Environmental and Engineering Research Institute ; CAS ; Lanzhou 730000 ; China) ; Zhu Gaofeng
• 刊名：Arid Land Geography
• 出版年：2009
• 卷期：31(4)
• 关键词：地下水运动 ; groundwater movement ; 内蒙古 ; Inner Mongolia
• 页码：p.544-551
• 图表：7 illus., 1 table, 20 refs.
• 分类号：1701
• issnNo：1000-6060
• isbnNo：65-1103/X

Based on the geochemistry and tritium (3H) dating technology, a case study of the hydrochemistry and isotope for the surface water and groundwater in the Ejina Basin has been taken up in order to understand the shallow groundwater residence time and geochemical evolution in the arid area of northwest China. The shallow groundwater quality is mainly controlled by the surface water. From the ion-ratio plot, the rock weathering and evaporation are dominant factors that determine the major ionic composition in the study area. The results have import implications for water resource management in the Ejina Basin and other water-stressed basins in northwest China. It is suggested that long-term water usage guide should be set up for the Heihe River Basin as a whole to permit a considerable discharge to the lower Ejina Basin.