Ecological engineering in a eutrophic lake: A case study of large aquatic macrophyte enclosures in Baima Lake, China
Ecological engineering in a eutrophic lake: A case study of large aquatic macrophyte enclosures in Baima Lake, China
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富营养化湖泊的生态工程：以中国白马湖大型水生植物围护为例
DOI：
10.1016/j.limno.2021.125907
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发表时间：
2021-09
期刊：
影响因子：
1.7
通讯作者：
Xingjun Tian
中科院分区：
文献类型：
--
作者：
Qiang Li;Pengwei Wan;Chengyin Han;Xiaolin Dai;Xuekun Hua;Yongnian Wang;Kai Zhang;Sulin Cai;Xingjun Tian
利用水生植物对富营养化湖泊进行生态修复是一项重要而实用的技术。在这里，我们调查了2019年春季至秋季在富营养化的白马湖建造的大型水生大型植物围栏(AME，20万平方米)对浮游植物和浮游动物的响应。在生长季节，AME通过增加水的透明度，降低总氮、总磷和叶绿素a的含量，显著改善了水质。AME显著降低了浮游植物的丰度和生物量，略微增加了浮游动物的丰度和生物量。浮游植物和浮游动物群落与AME内外的水温、电导率、总磷、化学需氧量、叶绿素a等环境因子密切相关。浮游动物与浮游植物的生物量比在AME内略高于AME外。浮游动物生物量与浮游植物生物量呈显著正相关，叶绿素a与总磷也呈显著正相关。我们发现磷是限制白马湖初级生产力的关键因素，而自下而上的效应是控制AME浮游植物的主要驱动力。利用水生植物降低营养盐负荷是治理白马湖富营养化的有效途径。
Ecological restoration of eutrophic lakes using aquatic macrophytes is an important and practical technology. Here, we investigated the response of phytoplankton and zooplankton to a large-scale 2015-built aquatic macrophyte enclosure (AME, 200,000 m2) screened of by a PVC net in Baima Lake, a eutrophic lake, from spring to autumn of 2019. AME significantly improved water quality by increasing water transparency, and reducing total nitrogen, total phosphorus, and chlorophyll-a content during the growing season. AME significantly decreased phytoplankton abundance and biomass and marginally increased zooplankton abundance and biomass. Phytoplankton and zooplankton communities were closely related to environmental factors, such as water temperature, conductivity, total phosphorus, chemical oxygen demand, and chlorophyll-a inside and outside the AME. The zooplankton:phytoplankton biomass ratio inside was slightly higher than outside the AME. Zooplankton and phytoplankton biomass were significantly positively correlated inside and outside the AME, as were chlorophyll-a and total phosphorus. We found phosphorus to be a key factor limiting primary productivity in Baima Lake, and that bottom-up effects were the main driver to control phytoplankton in the AME. Using aquatic macrophytes to reduce nutrient loads is an effective way to manage eutrophication in Baima Lake.
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影响因子：
3.8
作者：
Lei Zeng;F. He;Zhigang Dai;Xu Dong;Biyun Liu;Qiaohong Zhou;Zhenbin Wu
通讯作者：
Lei Zeng;F. He;Zhigang Dai;Xu Dong;Biyun Liu;Qiaohong Zhou;Zhenbin Wu
影响因子：
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作者：
Paerl HW;Fulton RS 3rd;Moisander PH;Dyble J
通讯作者：
Dyble J
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影响因子：
8.8
作者：
Deng Xuwei;Qi Min;Ren Ren;Liu Jiarui;Sun Xiaoxue;Xie Ping;Chen Jun
通讯作者：
Chen Jun
影响因子：
8.8
作者：
Zhi Wang;Zhiyong Zhang;Yingying Zhang;Junqian Zhang;S. Yan;Junyao Guo
通讯作者：
Zhi Wang;Zhiyong Zhang;Yingying Zhang;Junqian Zhang;S. Yan;Junyao Guo
影响因子：
11.4
作者：
Schindler, David W.;Carpenter, Stephen R.;Orihel, Diane M.
通讯作者：
Orihel, Diane M.