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绿洲是荒漠区适宜多种生物共同生息繁衍的地域。在全球气候变化和高强度人类活动的影响下,干旱区绿洲赖以生存的地下水环境日益恶化,已成为制约生态环境建设和经济社会发展的重要因素。选取具有典型代表意义的内蒙古阿拉善盟腰坝绿洲为研究区,对地下水进行取样分析,全面系统地研究地下水水化学成分的空间变化特征,研究结果表明:绿洲地下水水化学类型和TDS自东向西,自北向南具有典型的水平分带性分异规律,季节性变化差异大,水动力条件逐渐变差,C l-、Mg2+、Na+离子等高盐分离子逐渐富集,易溶盐逐渐累积,水体总体向咸化方向发展。
Oasis is a desert area suitable for living and breeding of a variety of biological regions. Under the influence of global climate change and high-intensity human activities, the deteriorating groundwater environment in the arid oasis has become an important factor restricting the ecological environment construction and economic and social development. Taking the typical loessial alluvial loess oasis in Inner Mongolia as the research area, the groundwater samples were sampled and analyzed, and the spatial variation characteristics of groundwater chemical composition were comprehensively and systematically studied. The results show that the oasis aquifer chemical types and TDS In the west, from north to south, there are typical horizontal zonation differences. The seasonal variation is big and the hydrodynamic conditions are getting worse. The high salt ions such as C l-, Mg 2+ and Na + ions are gradually enriched and the soluble salts are gradually accumulated , The overall water body to salty direction.