济南泉域岩溶水水化学特征及其成因

发布时间：2018-06-13 22:52

本文选题：济南泉域 + 岩溶水　；参考：《地球科学》2017年05期

【摘要】：济南泉域水质逐年变差,查明其污染来源和影响因素,对岩溶水资源开发利用及生态环境保护具有十分重要的意义,而对包含补给径流区的全区岩溶水系统分析尚未见报道.综合运用水化学(Piper三线图、离子比例系数、相关分析)和多元统计(因子分析、聚类分析)方法分析地下水水化学特征,探讨了不同区域水质影响因素及影响强度.因子分析反映了灰岩水岩作用、工业和生活污染、白云岩水岩作用、农牧业和生活污染对水化学组分的影响,贡献率依次为33.1%、28.4%、12.0%和11.8%.分析结果表明:研究区岩溶水水质受水岩作用和人类活动的双重影响;南部补给区、西郊及其以西排泄区水质优良,主要受碳酸盐岩溶解的影响;直接补给径流区部分岩溶水受农牧业和农村生活污染的影响,NO_3~-含量较高;东郊排泄区、城区及近郊开采区受工业及城镇生活污染的影响,水质较差,少数地段SO_4~(2-)、NO_3~-、TDS和总硬度超标.
[Abstract]:The water quality in Jinan spring area is becoming worse year by year. It is very important for the exploitation and utilization of karst water resources and the protection of ecological environment to find out the source of water pollution and the influencing factors. However, the analysis of karst water system in the whole area including recharge runoff area has not been reported. The hydrochemical characteristics of groundwater were analyzed by means of Piper's three-line diagram, ion ratio coefficient, correlation analysis and multivariate statistics (factor analysis, cluster analysis), and the influencing factors and intensity of water quality in different regions were discussed. Factor analysis reflected the effects of limestone water-rock action, industrial pollution and daily life pollution, dolomite water-rock action, agriculture, animal husbandry and daily life pollution on the chemical components of water, and the contribution rates were 33.1b 28.4g 12.0% and 11.8% respectively. The results show that the water quality of karst water in the study area is affected by both the action of water and the human activities, and the water quality of the southern recharge area, the western suburb and the drainage area to the west is good, mainly affected by the dissolution of carbonate rock. Some karst water in direct recharge runoff area is affected by agricultural, animal husbandry and rural life pollution, the content of No3 + is high, the water quality is poor in the eastern suburb drainage area, the urban area and the mining area near the suburb by the industrial and urban life pollution, the water quality of the karst water is poor, and in a few areas so _ 4 ~ (+) ~ (2) no _ (3) -TDs and total hardness exceed the standard.
【作者单位】：中国地质大学盆地水文过程与湿地生态恢复学术创新基地;中国地质大学环境学院;长江科学院水土保持研究所;
【基金】：国家自然科学基金项目(No.41672246)
【分类号】：P641.3

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