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[1]韩诺 朱忆秋 肖利娟 韦桂峰**.一座河道型水库浮游植物与附着硅藻群落对环境变化的响应比较*[J].应用与环境生物学报,2018,24(06):1-11.[doi:10.19675/j.cnki.1006-687x.2017.12043]
 HAN Nuo,ZHU Yiqiu,XIAO Lijuan& WEI Guifeng**.Responses of phytoplankton and periphytic diatoms to environmental factors in a tropical riverine reservoir *[J].Chinese Journal of Applied & Environmental Biology,2018,24(06):1-11.[doi:10.19675/j.cnki.1006-687x.2017.12043]
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一座河道型水库浮游植物与附着硅藻群落对环境变化的响应比较*()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
24卷
期数:
2018年06期
页码:
1-11
栏目:
研究论文
出版日期:
2018-12-25

文章信息/Info

Title:
Responses of phytoplankton and periphytic diatoms to environmental factors in a tropical riverine reservoir *
文章编号:
201712043
作者:
韩诺 朱忆秋 肖利娟 韦桂峰**
暨南大学生态学系 广州 510632
Author(s):
HAN Nuo ZHU Yiqiu XIAO Lijuan& WEI Guifeng**
Department of Ecology, JinanUniversity,Guangzhou510632, China
关键词:
浮游植物附着硅藻环境因子河道型水库
Keywords:
phytoplankton periphytic diatoms environmental factors Riverine reservoir
DOI:
10.19675/j.cnki.1006-687x.2017.12043
摘要:
河道型水库水体滞留时间较短,其系统特征更接近河流,浮游植物是湖泊或湖泊型水库的常规调查要素,而附着硅藻则是河流监测常用的方法,在河道型水库监测中,是采用浮游植物还是附着硅藻依赖于浮游植物与附着硅藻群落对环境要素的响应特征。在热带地区一座典型河道型水库中采集浮游植物的同时,设置人工基质采集附着硅藻;鉴定出的浮游植物和附着硅藻分别为131种和138种;浮游植物和浮游硅藻群落变化主要体现在优势种的演替上,空间差异小;附着硅藻群落的变化则体现在种类组成和优势种演替两个方面,群落的空间差异较大。多元回归分析和冗余分析表明影响浮游植物和附着硅藻群落的环境因子不同,温度是浮游植物、浮游硅藻和附着硅藻的关键解释变量(P<0.01),溶解氧和硝氮也是附着硅藻的解释变量(P<0.05);环境因子对附着硅藻群落变化具有更高解释度(R2=0.27)。因此,对于河道型水库而言,附着硅藻群落对环境变化的响应更灵敏,与浮游植物反映的环境信息有一定的差异,结合附着硅藻和浮游植物群落的变化能更好地反映水环境的变化。(图2 表4 参31)
Abstract:
Riverine reservoir has a short water retention time, which is ecologically more similar to rivers. Generally, phytoplankton-based approaches are used for lakes and periphytic diatoms-based approach for rivers. To understand the differences in responses of phytoplankton and periphytic diatoms to environmental variables for riverine reservoirs, we collected periphytic diatom samples on artificial substrata as well as phytoplankton samples in a tropical reservoir with a resident time less than 10 days. Our results showed 131 phytoplankton species and 138 periphytic diatoms were detected, the variation of phytoplankton community was mainly reflected by the dominant species with a strong response to the environmental variables at a time scale, while the variation of periphytic diatom community was shown in both the species composition and the dominant species, with a strong response at time and spatial scales. The multivariate regression analysis and redundancy analysis showed that the environmental factors have higher explanations for the variance of the periphytic diatom community (R 2=0.27). Temperature was the key explanatory variable for phytoplankton and planktonic and periphytic diatoms ( P<0.01). However, dissolved oxygen and nitrate were also detected as significant explanatory factors associated with periphytic diatom community ( P<0.01). It was concluded that the periphytic diatoms were more sensitive to the environmental change, and indicated more environmental variables than phytoplankton. Periphytic diatom s appear to provide more ecological information than phytoplankton for riverine reservoirs.

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备注/Memo

备注/Memo:
收稿日期: 2017-12-19 接受日期: 2018-03-18
*广东省应用型科技研发专项(2015B020235007)和广东省水利科技创新项目(2014-01)资助?
**通讯作者(E-mail:tweigf@jnu.edu.cn)
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更新日期/Last Update: 2018-06-05