生物学杂志

生物学杂志

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淮北临涣采煤沉陷水域浮游植物群落结构特征及其影响因子

  

  1. 1. 安徽大学 资源与环境工程学院， 合肥 230601； 2. 安徽省环保厅， 合肥 230071
  • 出版日期:2019-06-18 发布日期:2019-06-18
  • 通讯作者: 周忠泽，博士生导师，研究方向为恢复生态学与保护生态学，E-mail:zhzz@ahu.edu.cn
  • 作者简介:汪晨琛，硕士研究生，研究方向为生物多样性与保护生态学，E-mail: 912731441@qq.com
  • 基金资助:
    安徽省自然科学研究重大项目（KJ2015ZD04）；安徽省国土资源科技项目（2013-K-07）

Phytoplankton community structure of coal mining subsided area with environmental drivers in Linhuan Lake, Huaibei

  1. 1. School of Resources and Environmental Engineering, Anhui University, Hefei 230601； 2. Environmental Protection Department of Anhui Province, Hefei 230071, China
  • Online:2019-06-18 Published:2019-06-18

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摘要： 2015年8月—2016年6月期间，对淮北临涣采煤沉陷区小型湖泊临涣湖浮游植物群落结构进行了调查，研究了其群落结构与环境因子的关系，共发现浮游植物7门65属135种。群落组成以蓝藻、绿藻为主，其中蓝藻和绿藻的种类数占群落总组成的64.93%。主要优势种为啮蚀隐藻（Cryptomonas erosa ）、绿色颤藻（Oscillatoria chlorina）和小席藻（Phormidium tenue）。细胞丰度和生物量的平均值分别为107.32×105cells/L和8.11 mg/L。浮游植物的空间分布呈现西高东低的趋势。Shannon-Wiener（H′）、Margalef（d）和Pielou均匀度指数（J）的年均值分别2.81、2.96和0.617。Person相关性分析及RDA分析结果表明，水温、营养盐、透明度、叶绿素a是影响浮游植物群落结构的主要因子。结合已有的研究结果，探讨了不同沉陷时间序列湖泊浮游植物群落演替特征。

关键词: 临涣采煤沉陷区, 浮游植物, 群落结构, 环境因子

Abstract: The phytoplankton community structure of Linhuan Lake in Huaibei City was conducted from August 2015 to June 2016, phytoplankton community structure and its relationships with environmental factors were analyzed. A total of 135 phytoplankton species belonging to 7 phyla, 65 genera were recorded. The phytoplankton community structure dominated by Cyanophyta, Chlorolhyta respectively, in which Cyanophyta and Chlorolhyta accounted for 64.93% of the total community composition. According to the abundance and occurrence, Cryptomonas erosa, Oscillatoria chlorine and Phormidium tenue were considered as the dominant species. The mean abundance and biomass of phytoplankton were 107.32×105 cells/L and 8.11 mg/L respectively, with the spatial pattern of decreasing from east to west. The Shannon-Wiener index(H′), Margalef index(D)， and Pielou index(J) of the phytoplankton community were 2.81, 2.96, and 0.617, respectively. The results of Pearson correlation analyses and the RDA indicated that water temperature, transparency, nutritive salt and chla were the four main environmental drivers affecting the phytoplankton community structure in Linhuan Lake. Combined with the existing research results, the succession characteristics of phytoplankton communities in lakes with different subsidence time series were discussed.

Key words: Linhuan coal mining subsidence area, phytoplankton, community structure, environmental factors

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