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2种方法在典型岩溶区地下水质量评价中的对比——以地苏地下河为例

乔肖翠 李雪 刘琰

乔肖翠, 李雪, 刘琰. 2种方法在典型岩溶区地下水质量评价中的对比——以地苏地下河为例[J]. 环境工程技术学报, 2021, 11(2): 291-297. doi: 10.12153/j.issn.1674-991X.20200120
引用本文: 乔肖翠, 李雪, 刘琰. 2种方法在典型岩溶区地下水质量评价中的对比——以地苏地下河为例[J]. 环境工程技术学报, 2021, 11(2): 291-297. doi: 10.12153/j.issn.1674-991X.20200120
QIAO Xiaocui, LI Xue, LIU Yan. Comparison of two methods in groundwater quality assessment in typical karst areas: taking Disu underground river as an example[J]. Journal of Environmental Engineering Technology, 2021, 11(2): 291-297. doi: 10.12153/j.issn.1674-991X.20200120
Citation: QIAO Xiaocui, LI Xue, LIU Yan. Comparison of two methods in groundwater quality assessment in typical karst areas: taking Disu underground river as an example[J]. Journal of Environmental Engineering Technology, 2021, 11(2): 291-297. doi: 10.12153/j.issn.1674-991X.20200120

2种方法在典型岩溶区地下水质量评价中的对比——以地苏地下河为例

doi: 10.12153/j.issn.1674-991X.20200120
详细信息
    作者简介:

    乔肖翠(1989—),女,助理研究员,主要从事地下水及土壤污染研究, qiaoxc@craes.org.cn

    通讯作者:

    刘琰 E-mail: liuyan@craes.org.cn

  • 中图分类号: X524

Comparison of two methods in groundwater quality assessment in typical karst areas: taking Disu underground river as an example

More Information
    Corresponding author: LIU Yan E-mail: liuyan@craes.org.cn
  • 摘要: 选择合适的地下水质量评价方法是保证评价结果科学合理的关键。以典型西南岩溶区地苏地下河系为研究对象,运用水质指数法和模糊综合指数法对该地下河系具有代表性的采样点水质进行评价。结果表明:地苏地下河系水质总体较好,2种方法评价得到的水质劣于GB/T 14848—2017《地下水质量标准》Ⅲ类水质的点位分别占全部水样的21.43%和32.14%,主要超标指标为 NO 3 - ,其最高检出浓度是Ⅲ类水质限值的2.3倍,超标点位主要集中于人类活动较强烈的地苏乡。在28个点位中,2种方法评价结果一致的点位有15个,存在差异点位的评价结果仅相差一个水质级别。水质指数法能够满足水质类别划分及水质定量评价的要求,但是对于超标指标不同的水样可比性较差;模糊综合指数法可精确地反映指标实际浓度与水质分级界限的接近程度,量化了所有评价指标对地下水水质的影响权重,使结果更精确,但是计算比较复杂,可操作性较差,且不能识别主要超标指标,在量化所有参评指标时有可能掩盖对人体健康和生态环境威胁较大的指标的影响。因此在实际应用中,应根据监测数据和评价目的选择合适的评价方法,使评价结果既能反映水体的实际情况,又能满足管理需要。

     

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出版历程
  • 收稿日期:  2020-05-15
  • 刊出日期:  2021-03-20

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