| 区域地下水质量评价及影响因素识别方法研究——以华北平原为例 |
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| 关键词:North China plain groundwater quality evaluation influence degree contribution rate |
| 基金项目:国家973项目(编号: 2010CB428801-1);中国地质调查局国土资源大调查项目(编号: 1212010634600) |
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| 摘要: |
| Research on the Method for Evaluation and Influence Factors Identification of Regional Groundwater Quality: A Case Study of the North China Plain |
| The groundwater quality is controlled by water-rock interaction and human activities. It is necessary to know the influencing factors when the groundwater quality is analyzed. On the basis of a rigorous analysis of the classification standard of groundwater quality and its indicators, the method combining the single factor comprehensive evaluation and the identification factor was used to measure the quality of groundwater. This method can not only reflect the classes of groundwater quality with clear physical meaning but also divide the anthropogenic pollution possibility of regional groundwater. As a case study, in the North China plain, 49 organic and inorganic targets were detected from the groundwater samples collected form 6063 representative groundwater wells. The results show that the groundwater quality in the North China plain is controlled by the geological environment and hydrogeological conditions. The general chemical index exerts the greatest influence on the quality of groundwater. According to Ⅳ-Ⅴ class shallow groundwater, and the total contribution rates of manganese, total hardness, total soluble solids, iodide, which are kinds of protogenetic component, are more than 50%. In the pollution indexes, the contribution rates of nitrite is 20%, and the influence of heavy metals and organic matter on the regional groundwater quality is very little. |
| FEI Yu-hong,ZHANG Zhao-ji,GUO Chun-yan,WANG Chun-xiao,LEI Ting,LIU Jin.2014.Research on the Method for Evaluation and Influence Factors Identification of Regional Groundwater Quality: A Case Study of the North China Plain[J].Acta Geoscientica Sinica,35(2):131-138. |
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