白洋淀浮游动物群落结构与水环境因子的关系

付显婷; 杨薇; 赵彦伟; 徐菲

文章摘要

付显婷,杨薇,赵彦伟,徐菲.白洋淀浮游动物群落结构与水环境因子的关系[J].农业环境科学学报,2020,39(6):1271-1282.

白洋淀浮游动物群落结构与水环境因子的关系

Community structure of zooplankton and its relationship with water environmental factors in Baiyangdian Lake

投稿时间：2020-04-01

DOI：10.11654/jaes.2020-0366

中文关键词: 浮游动物群落结构生态位指数水环境因子冗余分析白洋淀

英文关键词: zooplankton community structure niche index water environmental factor redundancy analysis Baiyangdian Lake

基金项目:国家水体污染控制与治理科技重大专项（2018ZX07110001）；国家重点研发计划项目（2017YFC0404505）

作者	单位	E-mail
付显婷	水环境模拟国家重点实验室, 北京师范大学环境学院, 北京 100875
杨薇	水环境模拟国家重点实验室, 北京师范大学环境学院, 北京 100875	yangwei@bnu.edu.cn
赵彦伟	水环境模拟国家重点实验室, 北京师范大学环境学院, 北京 100875
徐菲	北京市环境保护科学研究院, 北京 100037

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中文摘要:

为揭示白洋淀浮游动物群落结构动态特征及其与水环境因子的关系，于2009-2010年和2018-2019年对白洋淀浮游动物及水环境因子进行6次调查，采用生态位指数、冗余分析（RDA）等方法对白洋淀浮游动物群落结构变化、优势种生态位分化及其与水环境因子的关系进行研究。结果显示：白洋淀浮游动物物种数从2009年的56种减少至2019年的43种，密度从3.64×10³ind·L^-1下降至1.70×10³ ind·L^-1，且物种组成相似度极低；共同优势种为针簇多肢轮虫（Polyarthra trigla）、角突臂尾轮虫（Brachionus angularis）及螺形龟甲轮虫（Keratella cochlearis），其生态位宽度分别增加了7.79%、9.76%和22.11%；优势种平均生态位重叠指数增加了35.26%，优势种间高度重叠（O_ik>0.6）的种对数量占比增加了30.08%。RDA分析表明，pH、总氮（TN）和溶解氧（DO）始终是影响白洋淀浮游动物群落结构的主要水环境因子。

英文摘要:

This study aims to understand the dynamic characteristics of zooplankton community and its relationship with water environmental factors in Baiyangdian Lake. Six surveys of zooplankton and water environmental factors were conducted from August 2009 to March 2010 and November 2018 to June 2019 in the lake. Based on the niche index and redundancy analysis(RDA), we analyzed the dynamic structure and niche differentiation among the dominant species of zooplankton and their relationship with water environmental factors. The results recognized a total of 56 species of zooplankton in 2009 and 43 species in 2019. Meanwhile, the individuals were reduced to 1.70×10³ ind·L^-1 in 2019 from 3.64×10³ ind·L^-1 in 2009, and their composition varied greatly. Polyarthra trigla, Brachionus angularis, and Keratella cochlearis were the dominant species in the two periods and their niche breadth increased by 7.79%, 9.76%, and 22.11%, respectively. The average niche overlap of the dominant species increased by 35.26% and the species pairs with O_ik>0.6 increased by 30.08%. Results of RDA demonstrated that pH, total nitrogen, and dissolved oxygen were the significant factors directly affecting zooplankton community structures in Baiyangdian Lake.

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