| 2015—2018年河南省辖海河流域水质改善效果评价 |
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| 引用本文： | 李婧,唐敏,梁亦欣.2015—2018年河南省辖海河流域水质改善效果评价[J].环境工程,2020,38(5):60-64,190. |
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| 作者姓名： | 李婧 唐敏 梁亦欣 |
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| 作者单位： | 郑州大学环境技术咨询工程有限公司, 郑州 450002 |
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| 基金项目： | 河南省环境保护厅项目“河南省卫河河长制现状调研及对策建议” |
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| 摘 要： | 分别采用单因子评价法、综合污染指数评价法和模糊综合评价法对2015—2018年河南省辖海河流域的水质改善效果进行评价分析。结果表明:3种方法的评价结果基本一致,2015—2018年河南省辖海河流域整体水质呈现改善趋势。但各方法侧重点有所不同。单因子评价结果显示,海河流域21项污染因子Ⅰ—Ⅲ类数量占比由2015年的69.63%增加至2018年的89.52%,劣Ⅴ类占比由2015年的15.13%减少至2018年的0.85%;海河流域综合污染指数由2015年的0.89降低至2018年的0.56,水质级别由中度污染改善为轻度污染,其中卫河、共产主义渠、大沙河、安阳河、汤河、马颊河的水质状况均有一定改善;模糊评价结果显示,NH3-N和TP在9项评价因子中权重占比较大,是河南省辖海河流域的主要污染因子;2018年8条河流均达到Ⅰ—Ⅲ类水质。前2种评价方法适用于管理分析,模糊评价法可补充说明河流存在的问题,更适用于研究工作。
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| 关 键 词： | 水质改善 单因子评价法 综合污染指数评价法 模糊综合评价法 河南省辖海河流域 |
| 收稿时间： | 2019-04-16 |
EVALUATION OF WATER QUALITY IMPROVEMENT EFFECT IN HAIHE RIVER BASIN IN HENAN PROVINCE FROM 2015 TO 2018 |
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| LI Jing,TANG Min,LIANG Yi-xin.EVALUATION OF WATER QUALITY IMPROVEMENT EFFECT IN HAIHE RIVER BASIN IN HENAN PROVINCE FROM 2015 TO 2018[J].Environmental Engineering,2020,38(5):60-64,190. |
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| Authors: | LI Jing TANG Min LIANG Yi-xin |
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| Affiliation: | Zhengzhou University Environment Technology and Consulting Limited Company, Zhengzhou 450002, China |
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| Abstract: | This paper evaluated and analyzed the water quality improvement effect in Haihe River Basin in Henan province during 2015—2018 using single factor evaluation method, comprehensive pollution index evaluation method, and fuzzy comprehensive evaluation method. The results showed that the three evaluation methods were basically consistent, and the overall water quality in Haihe River Basin in Henan province showed a trend of improvement in 2015—2018. But the emphasis of each method was different. The results of single factor evaluation showed that the number of category Ⅰ—Ⅲ pollution factors of 21 pollution factors in Haihe River Basin increased from 69.63% in 2015 to 89.52% in 2018, and the number of category inferior Ⅴ pollution factors decreased from 15.13% in 2015 to 0.85% in 2018. The comprehensive pollution index of Haihe Basin in Henan province decreased from 0.89 in 2015 to 0.56 in 2018, and water quality grades were improved from moderate pollution to light pollution. The water quality grades of the eight rivers in 2015 were lower than moderate pollution, including Wei River, Communist Canal, Dasha River, Anyang River, Tang River, Majia River. The results of fuzzy comprehensive evaluation showed that the weights of ammonia nitrogen and total phosphorus were the largest among the nine evaluation factors, the main pollution factors in Haihe River Basin in Henan province. And the water quality of eight rivers was improved to category Ⅰ—Ⅲ by 2018. Single factor evaluation method, comprehensive pollution index evaluation method were more suitable for management analysis, while fuzzy comprehensive evaluation was prefered in research work. |
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