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通过黄土高原地质、地貌及水文钻孔资料的初步分析 ,认为 :该地域地下水的分布、赋存层位、水质、富水程度等主要受地貌、地质构造、岩性、气候及水文等条件控制 ;其中松散岩类等裂 (孔 )隙水以大气降水补给为主 ,多数以泉水形式排泄于沟谷中。结合降水量、排泄方式及矿化度的不同 ,对各种成因地下水进行了综合水质评价 ,得出该区域潜水地下水大部分为重碳酸型低矿化度淡水 ,矿化度大于 1 g/L的微咸水、咸水主要分布在宁夏银北、西海固地区和甘肃陇西及内蒙古河套地区 ,为高原水资源开发利用提供了水文地质资料
According to the preliminary analysis of the geology, geomorphology and hydrology drilling data in the Loess Plateau, it is considered that the distribution of groundwater, the stratigraphic level, the water quality and the water-rich degree in the area are mainly controlled by the geomorphology, geological structure, lithology, climate and hydrology Among them, interstice (pore) interstitial water of loose rock type was dominated by atmospheric precipitation, most of which were excreted in the valley by spring water. According to the difference of precipitation, excretion and salinity, the comprehensive evaluation of groundwater quality is made. The results show that most of the groundwater in this region is bicarbonate-type low salinity freshwater whose salinity is more than 1 g / L Of brackish water. The saltwater mainly distributed in Yinbei and Xihaigu areas in Ningxia and Longxi in Gansu and Hetao areas in Inner Mongolia, providing hydrogeological data for the development and utilization of water resources in the plateau