| 白洋淀近30年水质时空变化特征 |
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| 引用本文： | 王欢欢,白洁,刘世存,田凯,赵彦伟,李春晖.白洋淀近30年水质时空变化特征[J].农业环境科学学报,2020,39(5):1051-1059. |
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| 作者姓名： | 王欢欢 白洁 刘世存 田凯 赵彦伟 李春晖 |
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| 作者单位： | 水环境模拟国家重点实验室,北京师范大学环境学院,北京 100875;水沙科学教育部重点实验室,北京师范大学环境学院,北京 100875 |
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| 基金项目： | 水体污染控制与治理科技重大专项（2018ZX07110001）；北京市科技计划课题（Z181100009618030） |
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| 摘 要： | 运用综合污染指数法、累积距平法、Mann-Kendall检验法、分层聚类法,研究了白洋淀水质时空变化特征。结果表明:白洋淀近30年(1988-2016年)综合污染指数呈现波动变化,2015年水质最差,水质平均污染指数(WQI)达2.229;在年内变化上,综合污染指数7月最高,2月最低,夏季>秋季>春季>冬季,且TN污染指数最高;在空间分布上,南刘庄所在的西北部淀区水质最差,其次是东部和南部的光淀张庄、枣林庄、圈头、端村、采蒲台,北部的王家寨、烧车淀水质较好。
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| 关 键 词： | 白洋淀 水质 时空变化 综合污染指数法 时间序列分析 分层聚类 |
| 收稿时间： | 2020/2/25 0:00:00 |
Spatial and temporal variations in the water quality of Baiyangdian Lake in the recent 30 years |
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| WANG Huan-huan,BAI Jie,LIU Shi-cun,TIAN Kai,ZHAO Yan-wei and LI Chun-hui.Spatial and temporal variations in the water quality of Baiyangdian Lake in the recent 30 years[J].Journal of Agro-Environment Science( J. Agro-Environ. Sci.),2020,39(5):1051-1059. |
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| Authors: | WANG Huan-huan BAI Jie LIU Shi-cun TIAN Kai ZHAO Yan-wei and LI Chun-hui |
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| Institution: | State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China,State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China,State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China,State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China,State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China and Key Laboratory for Water and Sediment Sciences of Ministry of Education, School of Environment, Beijing Normal University, Beijing 100875, China |
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| Abstract: | Baiyangdian Lake is known as north China''s kidney. Therefore, its spatial and temporal variations in water quality are of great significance for ensuring local ecological restoration. In this study, a comprehensive pollution index, cumulative anomaly method, MannKendall test, and hierarchical cluster analysis were used to investigate the spatial and temporal variations in the water quality of Baiyangdian Lake. The results showed that the comprehensive pollution index fluctuated in recent years (1988-2016). In 2015, the water quality was the worst with a water quality index value of up to 2.229. In terms of its temporal variation trends within each year, the highest comprehensive pollution index value was found in July, while the lowest was found in February. Seasonally, summer was the worst pollution duration, followed by autumn, spring, and winter. Furthermore, the TN concentration was the highest among all the monitoring indicators. With respect to the spatial distribution, the water quality of Nanliuzhuang (northwest region)was the worst, followed by that of Zhangzhuangzi, Zaolinzhuang, Quantou, Duancun, and Caiputai (east and south regions). In contrast, the water quality of Wangjiazhai and Shaochedian (north region)was better. |
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| Keywords: | Baiyangdian Lake water quality spatial and temporal variation comprehensive pollution index time series analysis hierarchical cluster analysis |
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