青狮潭水库2015—2022年水质变化特征及富营养化分析  

Analysis of water quality characteristics and eutrophication changes in Qingshitan Reservoir from 2015 to 2022

作　　者：蒋灵芝 赵童 张玲燕 秦阁阳 JIANG Ling-zhi;ZHAO Tong;ZHANG Ling-yan;QIN Ge-yang(Guilin Hydrology Center,Guilin 541100,China)

机构地区：[1]桂林水文中心,广西桂林541100

出　　处：《广西水利水电》2024年第5期153-157,共5页Guangxi Water Resources & Hydropower Engineering

摘　　要：采用单因子评价法和综合营养状态指数法对青狮潭水库2015—2022年的水质与水体富营养化程度进行了评价,并利用SPSS 27对营养状态影响因子进行了Pearson相关性分析。结果表明,8年来,青狮潭水库各指标表现出不同的变化特征:水库水质总体优良,均为Ⅰ~Ⅲ类,2022年水质最优,2017年水质最差,主要污染因子为总磷;营养状态为中营养~贫营养,高锰酸钾指数、叶绿素a、透明度是影响TLI的主要因子。总体来看,青狮潭水库水质呈好转趋势。The water quality and eutrophication degree of Qingshitan Reservoir from 2015 to 2022 were evaluated by single factor evaluation method and comprehensive nutritional status index method.Pearson correlation analysis was conducted on the influence factors of nutritional status by use of SPSS 27.The results of analysis demonstrate that in the past 8 years,various indexes of Qingshitan Reservoir showed different change characteristics.The water qual⁃ity of the reservoirs is generally good classified as class I-III.The water quality was the best in 2022 and the worst in 2017 with the main pollution factor being total phosphorus.The nutritional status was medium nutritional-poor nutritional.Main factors affecting TLI were potassium permanganate index,chlorophyll-a and transparency.On the whole,the water quality of Qingshitan Reservoir showed an improving trend.

关 键 词：水质特征 富营养化 综合营养状态指数法 青狮潭水库 

分 类 号：X824[环境科学与工程—环境工程]