首页|基于三种水质指数方法的万泉河口健康评价

基于三种水质指数方法的万泉河口健康评价

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  • NETL
  • NSTL
  • 万方数据
为了解海南万泉河口的水质变化特征现状,以2021年5月至2022年5月的溶氧量、氨氮、总氮、总磷以及五日生化需氧量为水质指标,分别采用单因子评价法、综合污染指数法和改进的灰色关联分析法对水质状况进行了分析与评价,并对三种评价方法的结果进行比较.结果表明:万泉河口各个位点都受到了不同程度的污染,多数位点的溶氧量和总氮含量超过中国Ⅲ类水环境质量标准,其中以位于沙美内海最南端的位点和位于河口北侧狭窄河道的位点污染最为严重,总氮和生化需氧量含量超过中国Ⅲ类水环境质量标准,并且污染程度呈现明显的季节性变化,旱季的污染程度较雨季更高.同单因子评价法与综合污染指数法相比,改进的灰色关联分析法能够较为全面且客观地评价污染物的影响,并能判断主要的污染物类别,可有效地进行水质评价.
Wanquan Estuary water quality health assessment based on three water quality evaluation methods
In the report,in order to understand the current situation of water quality changes in the Wanquan Es-tuary in Hainan,the dissolved oxygen,ammonia nitrogen,total nitrogen,total phosphorus,and five-day bio-chemical oxygen,from May 2021 to May 2022,were used as the water quality indicators,the single factor evalu-ation method,the comprehensive pollution index method,and the improved gray relational analysis method were used to analyze and evaluate the water quality,respectively,and the results of the three evaluation methods were compared.The results showed that the various sites of Wanquan Estuary have been polluted to varying degrees,the content of the dissolved oxygen and total nitrogen of most sites exceeds that of China's Class Ⅲ water quality criteria,and the pollution of the sites located in the southernmost of Shamei Inland Sea and the narrow channel on the north side of the estuary are worst,and the content of total nitrogen and five-day biochemical oxygen de-mand exceeds that of China's Class Ⅲ water quality criteria.Moreover,the pollution level showed obvious sea-sonal changes,and the pollution level in the dry season was higher than that in the rainy season.Compared with the other two methods,the improved gray relational analysis method can more comprehensively and objectively evaluate the effects of pollutants and judge the main pollutant categories,which can effectively evaluate and manage water quality.

water quality assessmentWanquan Estuarysingle factor evaluation methodcomprehensive pollu-tion index methodImproved gray relational analysis method

罗亦斯、王智豪、洪李川、姚祖兵、谢松光、宋一清

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南海海洋资源利用国家重点实验室,海南海口 570228

海南大学生态与环境学院,海南海口 570228

海南大学海洋学院,海南海口 570228

水质评价 万泉河口 单因子评价法 综合污染指数法 改进的灰色关联分析法

海南省科技专项海南省教育厅项目海南大学科研启动基金

ZDYF2023SHFZ101Hnkyzc2022-4KY-QDZR21130

2024

10.15886/j.cnki.hdxbzkb.2024.0016

海南大学学报(自然科学版)
海南大学

海南大学学报(自然科学版)

影响因子：0.524
ISSN：1004-1729
年,卷(期)：2024.42(2)
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