华东师范大学学报(自然科学版) ›› 2015, Vol. 2015 ›› Issue (2): 48-57.doi: 10.3969/j.issn.1000-5641.2015.02.006

• “水体污染控制与治理”国家科技重大专项 • 上一篇    下一篇

环境因子对滴水湖浮游植物生长的影响分析

张艳艳，魏金豹，黄民生，曹承进，何岩   

  1. 华东师范大学 生态与环境科学学院
  • 收稿日期:2014-07-29 出版日期:2015-03-25 发布日期:2015-05-28
  • 通讯作者: 黄民生，男，教授，博士生导师，研究方向为环境工程. E-mail:mshuang@des.ecnu.edu.cn
  • 作者简介:张艳艳，女，博士研究生，研究方向为水环境治理与修复. E-mail: yanyan2052@126.com
  • 基金资助:

    国家科技重大专项（2013ZX07310001）；国家自然科学基金（41001347、41101471）；上海市科委重大攻关项目（1223120190）；上海市教委产学研项目（14cxy09）

Effects of environment factors on the growth of phytoplankton in Dishui Lake

ZHANG Yan-yan,WEI Jin-bao,HUANG Min-sheng,CAO Cheng-jin,HE Yan   

  1. School of Ecological and Environmental Sciences, East China Normal University, Shanghai200062, China
  • Received:2014-07-29 Online:2015-03-25 Published:2015-05-28

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摘要： 为了掌握环境因子对滴水湖浮游植物的影响，2012—2013年期间分4个季度选取14个点位对滴水湖及其外围水体生境演变进行调查，分析环境因子以及浮游植物指标的时空变化特征，并对浮游植物指标和各项环境因子进行相关性分析以确定其生长的主要影响因子.湖区水质明显优于河道水质，且相对稳定；各点浮游植物密度的四季变化趋势与叶绿素a的变化大体上趋势趋同，但夏季浮游植物密度稍高，而各点冬季叶绿素a含量达到最高，滤食性鱼类的放养使得滴水湖夏季浮游植物的生长得到控制，浮游植物群落演替的总体趋势表现为大型浮游植物比例下降，小型浮游植物比例增加.相关性分析显示，滴水湖总磷浓度对浮游植物的生长具有重要影响.研究为滴水湖富营养化的防治以及水环境评价提供了理论依据.

关键词: 滴水湖, 环境因子, 浮游植物生长, 影响, 相关性分析

Abstract: In order to understand the effects of environment factors on phytoplankton growth, phytoplankton in Dishui Lake had been sampled at 14 monitoring spot locations in December of 2012 and April, July, November of 2013, respectively. The physical and chemical indicators had been monitored to analyze the growth of phytoplankton and the spacetime characteristics of influence factors. Correlative analysis was also made to determine major parameters that influence the growth of phytoplankton in Dishui Lake. It showed that main diversion channel of Dishui Lake is much higher than that of other sites. Seasonal variety of phytoplankton density was similar to that of chlorophylla content, but phytoplankton density of summer was a little higher than that of winter. The effect of filter feeding fish on phytoplankton can explain this phenomenon. Correlation analysis indicated that total phosphorous concentration had great influence on the growth of phytoplankton. This study provides biological basement in evaluating water quality and prevents eutrophication of Dishui Lake.

Key words: Dishui Lake, environmental factors, phytoplankton growth, correspondence analysis

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