摘要
十八联圩是巢湖的重要河口湿地。采用多水塘活水链工艺进行规划建设,以其中4个表流湿地单元为对象,2023年3月和7月调查其水质物化指标及浮游植物群落结构。结果表明:多水塘活水链湿地能够有效去除营养污染物,但冬季、夏季水质差异较大。冬季和夏季分别鉴定出浮游植物8门127种和8门213种,夏季主要以蓝藻门浮游植物为优势物种,而冬季硅藻门优势种数量更多,伪鱼腥藻(Pseudoanabaena)在两个季节均为优势物种,其在食物网中可能处于关键位置。冬夏季浮游植物的主要环境影响因子存在差异,冬季氮元素和DO对浮游植物种群的影响最大,夏季COD、NO_(3)-N和TP对浮游植物种群的影响最大。浮游植物的长期监测能够为巢湖及周边流域生态健康恢复提供数据支撑和理论基础。
Shibalianwei is the estuary wetland of Chaohu lake,which was constructed based on multi-pond running water chain.In March and July 2023,physical and chemical indicators of water quality and phytoplankton community structure in four units of Shibalianwei were investigated.The results showed that the multi-pond running water chain was effective in removing nutrient pollutants,but the efficiency varied greatly between two seasons.A total of 127 species of phytoplankton from 8 phyla and 213 species from 8 phyla were identified in winter and summer respectively.In summer,Cyanobacteria were almost all dominant,while Bacillariophyta were more dominant in winter.However,Pseudoanabaena sp.became the dominant species in both two seasons,which might be in a key position in the food web.Nitrogen and dissolved oxygen are the most essential driving factors on phytoplankton community structure in winter,while COD,nitrate and total phosphorus in summer.Long-term monitoring of phytoplankton provide data support and a theoretical basis for the restoration of ecological health of Chaohu lake and its surrounding areas.
作者
耿显双
何云峰
孙天一
李典鹏
傅海峰
冷欣
安树青
GENG Xian-shuang;HE Yun-feng;SUN Tian-yi;LI Dian-peng;FU Hai-feng;LENG xin;AN Shu-qing(PowerChina Eco-Environmental Group Co.,Ltd,Shenzhen 518102,Guangdong,China;School of Life Science,Nanjing University,Nanjing 210000,Jiangsu,China;Nanjing University Research Institute(Changshu)Co.,Ltd,Suzhou 215500,Jiangsu,China)
出处
《湿地科学与管理》
2024年第4期44-49,共6页
Wetland Science & Management
基金
多水塘活水链湿地水质净化单元组合优化与最适运行水位调控研究。
关键词
十八联圩
多水塘活水链
浮游植物
人工湿地
Shibalianwei
Multi-pond running water chains
Phytoplankton
Constructed wetland
