邛海湖2016~2020年水质评价及变化特征分析  

Water Quality Evaluation and Change Characteristics Analysis of Qionghai Lake in 2016-2020

作　　者：邓超 艾蕾 罗伟 肖克彦 傅宇 宋绍怡 DENG Chao;Al Lei;LUO Wei;XIAO Ke-yan;FU Yu;SONG Shao-yi(Sichuan Academy of Environmental Sciences,Chengdu,610041,China;Xichang Ecological Eiwironment Monitoring Station,Xichang,Sichuan 615000,China;Xichang Qionghai Lushan Administration Bureau,Xichang,Sichuan 615000,China)

机构地区：[1]四川省生态环境科学研究院,成都610041 [2]西昌生态环境监测站,四川西昌615000 [3]邛海泸山风景名胜区管理局,四川西昌615000

出　　处：《四川环境》2023年第2期101-108,共8页Sichuan Environment

摘　　要：为了解近年来邛海湖泊及其入湖河流水质现状及变化趋势,分析入湖河流域邛海湖水质变化关系,采用单因子指数法、秩相关系数法、灰色关联法等对2016~2020年邛海湖4个监测点(青龙寺、二水厂、湖心和邛海宾馆)和3条入湖河流(鹅掌河、关坝河和小青河)的水质情况进行了综合分析。结果表明:邛海湖泊水质较10年前已得到明显改善,主要污染指标总氮和总磷均呈现下降趋势;入湖河流主要污染指标为总氮、粪大肠菌群,以官坝河最为严重,水质类别为劣V类和V类;在目前邛海湖监测布点条件下,邛海湖平均水质与鹅掌河水质灰色关联度最高,应作为邛海水质治理的重点区域。In order to understand the current situation and water quality variation trend in Qionghai Lake and its inlet rivers in recent years,and analyze the correlation between the water quality of inlet rivers and the Qionghai Lake,based on the water quality monitoring data of Qionghai Lake and inlet Rivers from 2016 to 2020,the Single factor index method,Coefficient of Rank Correlation,Grey Correlation method,etc.were used to analyze the water quality changes comprehensively.The results showed that the water quality of Qionghai Lake has been significantly improved compared with 10 years ago,and the main pollution indicators,total nitrogen and total phosphorus,both showed a downward trend.Affected by TN and org indicators,the water environment quality of Guanba River was inferior Class V and Class V,and was the most polluted river entering the lake.Under current distribution if monitoring sites in Qionghai Lake,the average water quality in Qionghai Lake has the highest grey correlation with the water quality of Goosezhang River,and it should be regarded as the key area for water quality control in Qionghai Lake.

关 键 词：邛海 水质评价 秩相关系数法 灰色关联法 

分 类 号：X824[环境科学与工程—环境工程]