Water quality evaluation of Daheiting reservoir based on principal component analysis and WQImin

摘要：

大黑汀水库是引滦枢纽的源头,水质优劣关乎周边地区饮水安全.其水质评价当前尚处于以单指标和多指标分析简单综合的阶段.将主成分分析法与最小水质综合指数(WQImin)法相结合,基于2019年大黑汀水库不同水期水质监测数据,对大黑汀水库水质进行定量评价.结果表明,2019年大黑汀水库水质状况整体评价为中等,丰水期水质状况略优于平水期与枯水期,坝头水质状况略优于库尾,且水质状况从坝头至库尾呈递减趋势.基于主成分分析法所筛选出的对水库水质状况影响较大的水质因子说明该时段大黑汀水库的主要污染类型属于有机型及富营养化污染.以平水期为例,在充分考虑环境因子权重的前提下,基于主成分分析的WQImin在水环境综合水质评价方面有一定的可行性与参考价值.

Daheiting reservoir is the source of the Luan River Diversion Project.The quality of water is related to the safety of drinking water in the surrounding area.The evaluation of water quality is still in the stage of single index and multi-index analysis.Principal component analysis(PCA)and WQImin(minimum water quality index)were combined to quantitatively evaluate the water quality of Daheiting reservoir based on the water quality monitoring data of different water periods in 2019.The results showed that the water quality of Daheiting reservoir was medium in 2019,and the water quality of high water period was slightly better than that of low water period,and the water quality of dam head was slightly better than that of reservoir tail.The main pollution types of Daheiting reservoir in this period are organic pollution and eutrophication pollution according to the water quality factors selected by principal component analysis.Taking the horizontal period as an example,the minimum water quality index(WQImin)based on principal component analysis has certain feasibility and reference value in the water environment comprehensive water quality evaluation under the premise of fully considering the weight of environmental factors.

作者：

朱长军 赵方星 李步东 王世岩 郝文龙

Zhu Changjun;Zhao Fangxing;Li Budong;Wang Shiyan;Hao Wenlong(College of Energy and Environmental Engineering,Hebei University of Engineering,Handan 056038,China;State Key Laboratory of Hydrology,Water Resources and Hydraulic Engineering,Hohai University,Nanjing 210009,China;China Institute of Water Resources and Hydropower Research,Beijing 100038,China)

机构地区：

河北工程大学能源与环境工程学院 河海大学水文水资源与水利工程科学国家重点实验室 中国水利水电科学研究院水生态环境研究所

出处：

《betway官方app 学报：自然科学版》 CAS 北大核心 2021年第3期52-58,124,共8页

基金：

国家重点研发计划项目(2016YFC0401701) “一带一路”水与可持续发展基金项目(2019490911) 邯郸市科技专项计划项目(19422303008-73).

关键词：

大黑汀水库 主成分分析 WQImin 水质评价

Daheiting reservoir principal component analysis WQImin water quality assessment

分类号：

X824 [环境科学与工程—环境工程] X524 [环境科学与工程—环境工程]

基于主成分分析及WQI_(min)的大黑汀水库水质评价.pdf