生态与农村环境学报 ›› 2024, Vol. 40 ›› Issue (1): 87-95.doi: 10.19741/j.issn.1673-4831.2022.1015

• 自然保护与生态 • 上一篇    下一篇

铜山源水库春夏季浮游植物群落特征及其与环境因子的关系

周晗1, 蔡梅2, 王元元2, 苏敬华3, 黄若晗1, 吴骏驰1, 王丽卿1,4, 张玮1,4   

  1. 1. 上海海洋大学环境DNA技术与水生态健康评估工程中心, 上海 201306;
    2. 太湖流域管理局水利发展研究中心, 上海 200434;
    3. 上海市环境科学研究院, 上海 200233;
    4. 上海海洋大学农业农村部鱼类营养与环境生态研究中心, 上海 201306
  • 收稿日期:2022-09-27 出版日期:2024-01-25 发布日期:2024-01-23
  • 通讯作者: 张玮,E-mail:weizhang@shou.edu.cn E-mail:weizhang@shou.edu.cn
  • 作者简介:周晗(1998-),男,浙江宁波人,主要研究方向为浮游植物生态学。E-mail:aqua_zh@163.com
  • 基金资助:
    国家自然科学基金(41901119);上海市"科技创新行动计划"社会发展科技领域项目(19DZ1204504)

Phytoplankton Community Characteristics of Tongshanyuan Reservoir in Spring and Summer and Its Relationship with Environmental Factors

ZHOU Han1, CAI Mei2, WANG Yuan-yuan2, SU Jing-hua3, HUANG Ruo-han1, WU Jun-chi1, WANG Li-qing1,4, ZHANG Wei1,4   

  1. 1. Engineering Research Center of Environmental DNA and Ecological Water Health Assessment, Shanghai Ocean University, Shanghai 201306, China;
    2. Water Conservancy Development Research Center, Taihu Basin Authority of Ministry of Water Resources, Shanghai 200434, China;
    3. Shanghai Academy of Environmental Sciences, Shanghai 200233, China;
    4. Centre for Research on Environmental Ecology and Fish Nutrient of Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai 201306, China
  • Received:2022-09-27 Online:2024-01-25 Published:2024-01-23

摘要: 铜山源水库是位于浙江省衢州市的1座调蓄性水库,在农业灌溉和水利发电方面具有重要作用。为了解铜山源水库浮游植物群落特征及其与水环境因子之间的关系,于2021年3、5和7月对铜山源水库水体进行采样调查。结果表明,共检出浮游植物92种,隶属于7门57属。铜山源水库浮游植物主要优势种为硅藻门的小环藻、绿藻门的空球藻和网状空星藻以及蓝藻门的微囊藻和水华束丝藻。主坐标分析结果表明,3次调查的浮游植物群落结构具有显著差异,由硅藻/绿藻型变为蓝藻型,再变为绿藻/蓝藻型。Shannon-Wiener多样性指数(H')表明,水库处于中污染状态。浮游植物的细胞密度和生物量在5月有所下降,但在7月又回升。典范对应分析结果显示,水温、总氮和总磷是影响铜山源水体浮游植物群落结构的主要环境因子。浮游动物的下行效应在5月更强,但浮游动物的密度和生物量对浮游植物群落结构改变无显著影响。研究结果为进一步了解铜山源水库生态特征并开展生态环境保护工作提供重要基础数据。

关键词: 铜山源水库, 浮游植物, 环境因子, 群落结构

Abstract: Tongshanyuan Reservoir is a storage reservoir in Quzhou City, Zhejiang Province, which plays an important role in agricultural irrigation and hydroelectric power generation. In order to understand the characteristics of the phytoplankton community structure and its relationship with water environmental factors, water samples were collected from Tongshanyuan Reservoir in March, May and July 2021. The results show that 92 species of phytoplankton belonging to 7 phyla and 57 genera were identified. The dominant species were Cyclotella sp., Eudorina sp., Coelastrum reticulatum, Microcystis spp. and Aphanizomenon flos-aquae. Principal coordinate analysis (PCoA) show that the phytoplankton community structure was significantly different over the three mouths. The seasonal succession of the phytoplankton community structure in Tongshanyuan Reservoir changed mainly from Bacillariophyta/Chlorophyta to Cyanophyta and to Chlorophyta/Cyanophyta. Shannon-Wiener diversity index (H') indicate that the reservoir was moderately polluted. The abundance and biomass of phytoplankton decreased in May, but rose again in July. Canonical correspondence analysis (CCA) show that water temperature, total nitrogen and total phosphorus were the main environmental factors affecting the phytoplankton community structure in the Tongshanyuan source. The top-down effect of zooplankton was stronger in May. But the density and biomass of zooplankton had no significant effect on the changes in phytoplankton community structure. This study provides reference and basic data for understanding and maintaining the ecology of Tongshanyuan Reservoir.

Key words: Tongshanyuan Reservoir, phytoplankton, environmental factor, community structure

中图分类号: