陕北定靖平原冲湖积层潜水水文地质特征及开发利用

该文论述了定靖平原的区域地质背景条件和以更新统冲湖积层为主的第四系松散岩类孔隙潜水形成的地质环境、水文地质环境和水文地球化学环境 ;分析了冲湖积层潜水的水文地质特征和富水性规律 ;揭示了高矿化地下水和高氟地下水的形成机理 ;探讨地下水资源开发的具体措施和以淡水为主 ,咸水为辅的综合利用途径 ;建议依据本区水、热资源特征及分布规律 ,遵循治理与开发并重的原则 ,调整农业生态系统结构 ,以水为本建立咸淡水结合 ,农、林、牧协调的农业生态系统

HYDROGEOLOGICAL FEATURE AS WELL AS DEVELOPMENT AND UTILIZATION OF PHREATIC WATER IN ALLUVIAL-LACUSTRINE DEPOSITS OF DING BIAN-JINGBIAN PLAIN, NORTHERN SHANXI PROVINCE

In the paper, the regional geological background of Dingbian-Jingbian plain, geological environment, hydrogeological environment and hydrogeochemical environment for the formation of pore phreatic water in Quaternary loose rocks mainly composed of the alluvial-lacustrine deposits of Pleistocenes series has been expounded The hydrogeological feature and water abundance regularity of phreatic water in alluvial-lacustrine deposits have been analyzed, and the formation mechanism of high-mineralized groundwater and groundwater with high content of fluorine has been revealed In addition, the concrete measures for the development of groundwater resources and the ways for comprehensive utilization of fresh water first and saline water subsidiary have been put forward In conclusion, it is suggested that the structure of agroecological system should be adjusted in accordance with the characteristics and distribution regularities of groundwater and heat resources, and following the principle of laying equal stress on harnessing and development so as to establish an agroecological system in which the agriculture, forestry and husbandry can develop harmoniously