三峡库区典型支流浮游细菌的生态分布及其影响因素

生态学杂志

三峡库区典型支流浮游细菌的生态分布及其影响因素

吴娅¹,王雨春^2**,胡明明²,刘德富^3,4,黄钰铃²,李敦海⁵,陈文重¹,许涛¹

(¹三峡大学水利与环境学院，湖北宜昌 443002； ²中国水利水电科学研究院，北京 100038； ³湖北工业大学资源与环境学院，武汉 430072； ⁴三峡库区生态环境教育部工程研究中心，湖北宜昌 443002； ⁵中国科学院水生生物研究所，武汉 430072)

出版日期:2015-04-10 发布日期:2015-04-10

Ecological distribution and its influencing factors of bacterioplankton in the typical tributaries of Three Gorges Reservoir.

WU Ya¹, WANG Yu-chun^2**, HU Ming-ming², LIU De-fu^3,4, HUANG Yu-ling², LI Dun-hai⁵, CHEN Wen-zhong¹, XU Tao^1

(¹College of Hydraulic & Environmental Engineering, China Three Gorges University, Yichang 443002, Hubei, China; ^2China Institute of Water Resources and Hydropower Research, Beijing 100038, China; ³School of Resource and Environmental Science, Hubei University of Technology, Wuhan 430072, China; ^4Engineering Research Center of Ecoenvironment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Yichang 443002, Hubei, China; ⁵ Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China)

Online:2015-04-10 Published:2015-04-10

摘要/Abstract

摘要： 2013年夏季对三峡库区3条典型支流朱衣河、梅溪河、草堂河进行了采样调查，分析了浮游细菌丰度的分布特征及其与环境因子的关系。结果表明：浮游细菌丰度在调查的水体中存在明显空间差异，变化范围为0.53×10⁵～10.55×10⁵个·mL^-1，平均值为2.71×10⁵个·mL^-1；平均细菌丰度从大到小依次为梅溪河、朱衣河、长江干流和草堂河；3条支流浮游细菌丰度垂向分布特征均表现为表层>中层>底层。相关性分析表明，溶解氧、pH、叶绿素a与浮游细菌丰度具有显著的相关性，为该水域浮游细菌丰度空间分布的主要限制因子。根据浮游细菌丰度，各调查水域均处于富营养状态。

关键词: 高温, 光合酶, 黄瓜, 光合作用, 亚高温

Abstract:

The distribution of bacterioplankton in three typical tributaries (Zhuyi River, Meixi River and Caotang River) of Three Gorges Reservoir was investigated in summer of 2013. The correlation between the abundance of bacterioplankton and ecological factors was analyzed. The results showed that the abundances of bacterioplankton were significantly different in these rivers, ranging from 0.53×10⁵ to 10.55×10⁵ cells·mL^-1 with an average value of 2.71×10⁵ cells·mL^-1. The average abundance values were in order of Meixi River > Zhuyi River > Yangtze River > Caotang River. Vertical distribution of bacterioplankton biomass in three tributaries showed a similar change trend, being the highest in the surface water and the lowest on the bottom. The correlation analysis showed that DO, pH and chlorophyll-a had significant correlations with bacterioplankton abundance, indicating that these parameters are the main factors limiting the bacterioplankton abundance in this region. The waters surveyed were eutrophic according to bacterioplankton abundance.

Key words: sub-high temperature, cucumber, photosynthetic enzyme, high temperature, photosynthesis

吴娅1,王雨春2**,胡明明2,刘德富3,4,黄钰铃2,李敦海5,陈文重1,许涛1. 三峡库区典型支流浮游细菌的生态分布及其影响因素[J]. 生态学杂志.

WU Ya1, WANG Yu-chun2**, HU Ming-ming2, LIU De-fu3,4, HUANG Yu-ling2, LI Dun-hai5, CHEN Wen-zhong1, XU Tao1. Ecological distribution and its influencing factors of bacterioplankton in the typical tributaries of Three Gorges Reservoir.[J]. cje.

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