| 北京城市副中心新建景观水体的水生态环境变化规律 |
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| 引用本文： | 张蕾,郭硕,晁春国,杨子超,楼春华,王培京.北京城市副中心新建景观水体的水生态环境变化规律[J].环境科学研究,2022,35(4):989-998. |
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| 作者姓名： | 张蕾 郭硕 晁春国 杨子超 楼春华 王培京 |
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| 作者单位： | 1.北京市水科学技术研究院，北京 100048 |
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| 基金项目： | 国家水体污染控制与治理科技重大专项（No.2017ZX07102）~~； |
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| 摘 要： | 为研究新建景观水体水生态环境变化过程，以北京城市副中心镜河为研究对象，对2018—2020年河流水生态系统开展跟踪监测分析. 结果表明:①在水源变化和水动力条件影响下，与通水初期相比，水质指标中总磷浓度、高锰酸盐指数增加了2倍，叶绿素a浓度增加了约4倍，浮游植物密度增加3倍，与此同时透明度下降63.79%，水体转变为藻型浊水态；②底栖动物多样性指数(Shannon-Wiener指数)由0.26增至0.64，鱼类种类由0增至14种，大型水生植物覆盖度由6%增至40%. 研究显示，通过自然恢复与人工干预的共同作用，镜河水生态健康水平由不健康演变为亚健康，但富营养化是制约水体继续向好发展的主要因素. 研究成果可为新建河流的景观设计和生态修复提供科学依据.
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| 关 键 词： | 北京城市副中心 新建景观水体 水生态监测 水生态健康 |
| 收稿时间： | 2021-10-12 |
Variation of Ecological Environment of New Water Landscape in Beijing Municipal Administrative Center |
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| ZHANG Lei,GUO Shuo,CHAO Chunguo,YANG Zichao,LOU Chunhua,WANG Peijing.Variation of Ecological Environment of New Water Landscape in Beijing Municipal Administrative Center[J].Research of Environmental Sciences,2022,35(4):989-998. |
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| Authors: | ZHANG Lei GUO Shuo CHAO Chunguo YANG Zichao LOU Chunhua WANG Peijing |
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| Affiliation: | 1.Beijing Water Science and Technology Institute, Beijing 100048, China2.Beijing Key Laboratory of Water Environmental and Ecological Technology for River Basins, Beijing Water Science and Technology Institute, Beijing 100048, China3.Beijing Hydrological Center, Beijing 100089, China4.Beijing Miyun Reservoir Manage Office, Beijing 101500, China5.Beijing North Canal Manage Office, Beijing 101100, China |
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| Abstract: | In order to study the ecosystem succession of new water landscape, the Jing River in Beijing Municipal Administrative Center was taken as the research object, and the river water ecosystem was monitored and analyzed from 2018 to 2020. The results showed that: (1) The TP and CODMn of water quality indexes increased by 2 times under the influence of water source and hydrodynamic conditions. Chlorophyll concentration and density of phytoplankton increased by 4 and 3 times respectively. However, the transparency decreased by 63.79% in the current state of algal turbidity. (2) The diversity index (Shannon-Wiener Index) of zoobenthos and species of fish increased from 0.26 to 0.64 and 0 to 14, and the coverage of macro aquatic plants increased from 6% to 40%. The study reveals that owing to natural recovery and artificial intervention, the health level of the Jing River changed from unhealthy to sub-healthy, but the eutrophication is the main limiting factor of the water system. The research results provide scientific basis for landscape design and ecological restoration of new rivers. |
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