再生水补水景观湖浮游藻类群落结构特征及与环境因子的关系

发布时间：2019-04-24 00:08

【摘要】：在2014年6月至2015年5月,对以再生水为补水水源的天津临港生态湿地公园景观湖区的浮游藻类和水质指标进行逐月监测,应用典范对应分析(CCA)研究了浮游藻类与环境因子之间的关系,评价了湖区的水环境状况。结果表明:共鉴定出浮游藻类7门67属115种(包括变种),硅藻门种类最多,其次为绿藻门和蓝藻门,浮游藻类丰度范围为3.5×106~49×106cells·L~(-1),平均丰度为25.7×106cells·L~(-1),优势藻种主要为链状假鱼腥藻、梅尼小环藻、四尾栅藻、颤藻、项圈藻和卵形隐藻;多样性分析显示,藻类物种多样性一般,结合优势指示种评价水体为中污染富营养型水体;典范对应分析表明,水温、盐度、TN/TP等是影响临港再生水补水景观湖藻类群落结构的主要因素。
[Abstract]:From June 2014 to May 2015, monthly monitoring of phytoplankton and water quality indicators in the landscape lake area of Tianjin Lingang Eco-Wetland Park, which uses recycled water as the source of replenishment, The relationship between phytoplankton and environmental factors was studied by canonical correspondence analysis (CCA), and the water environment of the lake area was evaluated. The results showed that there were 115 species (including varieties) belonging to 67 genera of 7 phylum of phytoplankton, and diatom species were the most, followed by chlorophyta and cyanobacteria. The abundance of phytoplankton ranged from 3.5 脳 10 ~ 6 to 49 脳 106cells 路L ~ (- 1). The average abundance is 25.7 脳 106cells 路L ~ (- 1), and the dominant algae species are mainly Anabaena spp., Chymenocyclocystis Menestris, Cyclostachys tetraphylla, Tripterygium, Cynocystis ovaliformis and Cryptocystis ovata. The diversity analysis showed that the species diversity of algae was general, and combined with dominant indicator species, the water body was moderately polluted eutrophication water body. The canonical correspondence analysis showed that water temperature, salinity and TN/TP were the main factors affecting the algae community structure of the reclaimed water reclamation landscape lake.
【作者单位】：西安建筑科技大学环境学院;天津市环境保护科学研究院;
【基金】：国家水体污染控制与治理科技重大专项(2012ZX07308-001-08,2013ZX07310-001) 国家自然科学基金资助项目(21007050) 陕西省重大科技成果转化引导专项(2016KTCG01-17) 陕西省青年科技新星项目(2014KJXX-66)
【分类号】：X524;X173

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