2011-2020年南漪湖水质变化特征研究  

Change Trends of Water Quality of Nanyi Lake in 2011-2020

作　　者：吴转璋 王欢 唐萍 张付海 WU Zhuan-zhang;WANG Huan;TANG Ping;ZHANG Fu-hai(Anhui Provine Eco-Environmental Monitoring Center,Hefei 230071,China)

机构地区：[1]安徽省生态环境监测中心,安徽合肥230071

出　　处：《安徽化工》2022年第4期72-75,87,共5页Anhui Chemical Industry

基　　金：第二次全国污染源普查工业源普查报表制度及普查数据质量控制实施技术支持项目(No.22110399005)。

摘　　要：采用单因子评价法、综合污染指数法和Spearman秩相关系数法对2011-2020年南漪湖水质变化特征进行定量分析。结果表明,南漪湖全湖10年间水质除2018年和2019年为Ⅳ类外,其余年份均为Ⅲ类,超标因子为总磷;除2014年呈中营养状态外,其余年份均呈轻度富营养状态;南漪湖综合污染指数和综合营养状态指数均呈减小趋势,但均无显著意义,说明在评价时段内各断面水质状况和富营养状况有变好趋势,变化趋势较平稳。建议进一步加大污染综合整治力度,以使南漪湖水环境质量稳定达标并持续改善。Single factor evaluation method, comprehensive pollution index method and Spearman correlation coefficient method were used to quantitatively analyze the water quality change characteristics of Nanyi Lake from 2011 to 2020. The results showed that the water quality of Nanyi Lake in the past 10 years was class Ⅲ except for class Ⅳ in 2018 and 2019,and the exceeding factor was total phosphorus. It was in medium nutrition state in 2014, and it was in slightly eutrophic statein other years. The comprehensive pollution index and comprehensive nutritional status index of Nanyi Lake showed a decreasing trend, but there was no significant significance, indicating that the water quality and eutrophication status of each section had a better trend and the change trend was relatively stable during the evaluation period. It is suggested to further strengthen the comprehensive treatment of pollution, so as to make the water environmental quality of Nanyi Lake reach the standard stably and continuously improve.

关 键 词：单因子评价法 综合污染指数法 综合营养状态指数 Spearman秩相关系数法 

分 类 号：X824[环境科学与工程—环境工程]