长江干流湖北段沿江城市水质状况及变化趋势研究  

Analysis on Water Quality Status and Change Trend of Cities Along Yangtze River in Hubei

作　　者：安堃达 张帅 程继雄 陈君 张晓彤 An Kunda;Zhang Shuai;Cheng Jixiong;Chen Jun;Zhang Xiaotong(Hubei Eco-environmental Monitoring Center Station, Wuhan 430072, China;Central-Southern Safety and Environment Technology Institute Co., Ltd., Wuhan 430051, China)

机构地区：[1]湖北省生态环境监测中心站,湖北武汉430072 [2]中南安全环境技术研究院股份有限公司,湖北武汉430051

出　　处：《环境科学与管理》2020年第7期156-160,共5页Environmental Science and Management

摘　　要：利用长江干流湖北段2016年-2019年各沿江城市出入境断面常规监测数据,分段评价长江沿程水环境质量状况及变化趋势。结果表明长江干流湖北段总体水质为优,各沿江城市出入境断面水质维持在Ⅱ~Ⅲ类之间,且呈好转趋势;长江干流沿程总磷浓度呈现“M”型,高浓度值主要集中以宜昌、荆州为核心的西部城市群和以武汉为核心的东部城市群,与长江沿线城市经济发展分布格局吻合,且近年来总磷浓度总体呈下降趋势,表明沿线地市在长江大保护中采取的措施对改善长江水环境质量具有积极作用。The water environment quality status and the variation trends around the Yangtze River were evaluated in stages based on the routine monitoring data of the inbound and outbound sections of cities along the Yangtze River from 2016 to 2019 in Hubei section of the Yangtze River.The results showed that the overall water quality of the Hubei section of the mainstream of the Yangtze River was excellent,and the water quality in each monitoring section had maintained a level betweenⅡandⅢ,and it had shown a trend of improvement.The total phosphorus concentration along the Yangtze River has“M”shape.The high concentration values were mainly concentrated in the western urban agglomerations with Yichang and Jingzhou as the core and the eastern urban agglomerations with Wuhan as the core.The change trend of water quality was related to the distribution pattern of cities along the Yangtze River.The total phosphorus concentration had shown a downward trend,indicating that the measures taken by the cities along the route to protect the Yangtze River had a positive effect on improving the quality of the Yangtze River water environment.

关 键 词：长江干流 湖北省 水环境质量 总磷 

分 类 号：X832[环境科学与工程—环境工程]