中国科学院水生生物研究所机构知识库
Advanced  
IHB OpenIR  > 中科院水生所知识产出(2009年前)  > 期刊论文
题名: DEVELOPMENT CHARACTERISTICS AND DISTRIBUTION OF MICROORGANISMS WITHIN 3-YEAR-OLD ARTIFICIAL ALGAL CRUSTS IN HOPQ DESERT
作者: Rao Ben-Qiang (rbqxy@163.com) ; Wang Wei-Bo ; Lan Shu-Bin ; Li Dun-Hai ; Hu Chun-Xiang ; Liu Yong-Ding (liuyd@ihb.ac.cn)
通讯作者: Rao Ben-Qiang ; Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol and Biotechnol, Wuhan 430072, Peoples R China
刊名: Acta Hydrobiologica Sinica
发表日期: 2009
卷: 33, 期:5, 页:937-944
收录类别: 其他
英文摘要: In this study, development characteristics and distribution of microorganisms within four different types of artificial algal crusts were investigated. The results showed that: (1) artificial algal crusts came into being, when desert cyanobacteria were inoculated onto surface of dunes, with their average thickness of 2.23-5.36mm, highly black and sage green, and coverage of artificial algal crusts over 70% when artificial algal crusts underwent growth and development of three years. As to the four artificial algal crusts, Salix cheilophila Schneid. -Aneurolepidium chinensis -algal crust(SAA) was found to gain the best developments and reached the most biomass, and arrived at the succession of moss crust at the same time. Plenty of desert plants occurred at the locations of artificial algal crusts, such as A. squarrosum, E. dahuricus, S. collina and A. chinensis, etc., and the coverage of vegetation accounted for 60%-90%. Algal compositions of artificial algal crusts at four different stations were entirely very single, and the quantities of algal species varied inapparently. M. vaginatus was found to be still utterly dominant, whereas, S. javanicum kept secondary. Moreover, different species of algae were discovered to inhabit distinct ecological niche. It was shown in our study that artificial algal crusts could bear high compressive strength, and compressive strength commonly achieved 35-70 N/m(2). Cyanobacteria forming artificial algal crust was found to own abundant filamentous growth forms that could band and felt soil particles by compact and high mechanical force, and simultaneously, they exude polysaccharide with their filaments to hasten soil aggregation and cement soil particles together. All those meant compressive strength of artificial crusts was able to be maintained due to the presence of filamentous cyanobacteria. The observation to ultra-microstructures of algal crusts indicated that abundant filamentous growth forms occurred between the sand soils within algal crusts during growth and development of 3 years in the fields. A great deal of filamentous growth forms were observed to band up and felt sand particles, which may be contributed to cementation process of artificial algal crusts. (2) Change trend of the total number of microorganisms was: SAA > GA > AA > SA > CK. Changes of biomass of artificial algae crusts accorded with that of the total number of microorganisms. Of all main microorganism groups, the quantities of bacteria, actinomyces and fungi within different types of artificial algae crusts were consistent with that of the total number of microorganisms. Concerning the four artificial algae crusts, the ratio of bacteria quantities to the total number of microorganisms was distinctly more than that of actinomyces and fungi. The percentage of bacteria quantities to the total number of microorganisms increased sharply in turn, while the percentage of actinomyces quantities to the total number of microorganisms decreased evidently. Need to mention that it took on very small ratio of fungi quantities to the total number of microorganisms, and differences of the ratios varied very little.
ISSN号: 1000-3207
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/18623
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

Files in This Item: Download All
File Name/ File Size Content Type Version Access License
DEVELOPMENT CHARACTERISTICS AND DISTRIBUTION OF MICROORGANISMS WITHIN 3-YEAR-OLD ARTIFICIAL ALGAL CRUSTS IN HOPQ DESERT.pdf(611KB)----开放获取--View Download

Recommended Citation:
Rao Ben-Qiang (rbqxy@163.com) ; Wang Wei-Bo; Lan Shu-Bin; Li Dun-Hai; Hu Chun-Xiang; Liu Yong-Ding (liuyd@ihb.ac.cn).DEVELOPMENT CHARACTERISTICS AND DISTRIBUTION OF MICROORGANISMS WITHIN 3-YEAR-OLD ARTIFICIAL ALGAL CRUSTS IN HOPQ DESERT,Acta Hydrobiologica Sinica,2009,33(5):937-944
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Rao Ben-Qiang (rbqxy@163.com)]'s Articles
[Wang Wei-Bo]'s Articles
[Lan Shu-Bin]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Rao Ben-Qiang (rbqxy@163.com)]‘s Articles
[Wang Wei-Bo]‘s Articles
[Lan Shu-Bin]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: DEVELOPMENT CHARACTERISTICS AND DISTRIBUTION OF MICROORGANISMS WITHIN 3-YEAR-OLD ARTIFICIAL ALGAL CRUSTS IN HOPQ DESERT.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  中国科学院水生生物研究所 - Feedback
Powered by CSpace