水资源保护Issue(4)：70-76,7.DOI:10.3880/j.issn.10046933.2015.04.013
南通地区地下水咸化机理分析及改良措施
Analysis of salinization mechanism of groundwater in Nantong area and its improvement measures
摘要
Abstract
In order to find out the salinization mechanism of shallow and deep groundwater in Nantong area, all sorts of hygro-chemical coefficients and variation diagrams were used to analyze the salinization mechanism of shallow and deep groundwater in the study area.The results show that, in the central and western parts of study area, the hydro-chemical evolution of deep groundwater is controlled by traditional water rock interaction, the increase of TDS in eastern coastal area, especially around the area of Yinyang Town, is the result of salt leaching from paleo marine strata.As for the shallow groundwater, the increase of TDS in the most areas far from the sea is mainly connected with the effects of dissolved salt and evaporation.Influenced at some degree by the modern seawater intrusion, the TDS in coastal area, especially in the Yinyang Town and Haiyan Town in the southeast corner, was significantly increased.According to these change characteristics of groundwater hydro-chemical in the study area, some measures of improving the groundwater system were put forward: develop and utilize high TDS groundwater reasonably to increase the amount of regional water resources and enhance the storage capacity, mitigating potential threats to deep fresh water resources;increase the exploitation amount of salt water gradually to improve saline and alkaline land step by step, having positive significance for soil and water resources utilization and ecological environment improvement in the long term.关键词
地下水/咸化机理/水化学系数/地下水改良/南通地区Key words
groundwater/salinization mechanism/hydrochemical coefficient/groundwater improvement/Nantong area分类
资源环境引用本文复制引用
周慧芳,谭红兵,高将,张文杰..南通地区地下水咸化机理分析及改良措施[J].水资源保护,2015,(4):70-76,7.基金项目
国家自然科学基金 （）
