摘要
选取2021年7月水位大幅波动和2018年7月水位中幅波动时的水质数据为主要研究对象,通过库区的水质与水生态监测调查,初步研究了密云水库水位变化对水质及浮游藻类的影响规律。研究表明:密云水库水位大幅上升期(2021年)和中幅上升期(2018年),水位对水质及浮游藻类的影响趋势大致相同。水位上升导致密云水库库区污染物质增多,主要是因为外源输入,其中上游面源污染是最主要的部分,建议应加强密云水库上游面源污染的防治,减少上游污染物的输入。本研究分析了密云水库库区污染物来源,为库区污染控制、保障库区水质安全提供技术支撑。
In this paper, the water quality data in July 2021 and July 2018 when the water level fluctuated in large amplitude were selected as the main research object. Through the monitoring investigation of water quality and water ecology in the reservoir area, the influence law of water level change in Miyun Reservoir on water quality and plankplankton was preliminatively studied. The results show that the influences of water level on water quality and plankplankton in Miyun Reservoir are roughly the same during the period of large increase in reservoir water level(2021) and medium increase(2018). The results shows that the rise of water level leads to the increase of pollutants in the Reservoir area of Miyun Reservoir,which is mainly due to exogenous input, and upstream non-point source pollution is the most important part. Therefore, it is suggested to strengthen the prevention and control of non-point source pollution in the upstream of Miyun Reservoir and reduce the input of upstream pollutants. This study analyzed the sources of pollutants in the reservoir area to provide technical support for pollution control and water quality safety in the reservoir area.
作者
李亚楠
李心月
贾西雨
赵仲华
马骁
LI Yanan;LI Xinyue;JIA Xiyu;ZHAO Zhonghua;MA Xiao(Beijing Miyun Reservoir Management Office,Beijing101512,China)
出处
《北京水务》
2022年第4期31-36,共6页
Beijing Water
关键词
密云水库
水位上升
水质变化
浮游藻类
Miyun Reservoir
rising water level
water quality change
planktonic algae
