江西省峡江水利枢纽工程水功能区划分及库区水质评价  

Water quality evaluation and trend analysis of water function zones in Xiajiang Hydro-junction Project reservoir area

作　　者：候林丽 徐鹏 邹武 王达 牛自强 HOU Linli;XU Peng;ZOU Wu;WANG Da;NIU Ziqiang(Ji'an Hydrology Bureau of Jiangxi Province,Ji'an 343100,China)

机构地区：[1]江西省吉安市水文局,江西吉安343000

出　　处：《水利水电快报》2020年第8期68-73,共6页Express Water Resources & Hydropower Information

基　　金：水利部鄱阳湖水资源水环境研究中心开放基金资助项目(ZXKT201707);江西省水文局2018年度青年科技创新基金资助项目(SWJJ-KT201805)。

摘　　要：基于2009~2019年峡江水利枢纽工程库区内各水功能区监测数据,采用单因子评价法、综合污染指数法、季节性肯达尔法及斜率估计法,分析了工程运行前后库区内水功能区水质及其变化趋势。结合库区内排污口分布特点及社会经济和水环境评价指标,采用皮尔逊相关分析法探讨了特征污染物影响因素。研究表明:库区内各水功能区水质总体较好,但在自然因素和人为因素的共同作用下,5d生化需氧量、氨氮、总磷3个指标呈显著上升趋势;工程调度对库区水体水质有一定影响,但工程运行仅6 a,水功能区水质及其趋势变化还有待进一步观察研究。Based on the observed data for the water function zones within the reservoir area of Xijiang Hydro-junction Project between 2009 and 2019,we analyzed the water quality and the variation trend of the area prior to and after the operation of the project using single factor evaluation method,fuzzy comprehensive evaluation method,seasonal Kendall test method and slope estimation method.Taking into consideration of the distribution characteristics of sewage outlets in the reservoir area and the evaluation indexes of society-economy and water environment,we also discussed some particular pollutants by utilizing Pearson correlation analysis.The results showed that the water quality of all water function areas is generally good,however,under the double effects of natural factors and human factors,the indexes of five-day BOD,ammonia nitrogen and total phosphorus tend to significantly increase;the impacts of project operation on water quality are limited,since Xiajiang Hydro-junction Project only operates for six years,the water quality and the variations of water function area need further observation and studies.

关 键 词：水功能区划分 水质评价 单因子评价法 综合污染指数法 季节性肯达尔趋势分析 皮尔逊相关性分析 峡江水利枢纽工程 江西省 

分 类 号：X824[环境科学与工程—环境工程]