IHB OpenIR  > 水环境工程研究中心  > 期刊论文
SUCCESSION AND CONTRIBUTIONS TO ECOSYSTEM FUNCTION OF MANMADE BIOTIC CRUSTS
Wu, Peipei1,2; Rao, Benqiang1,3; Wang, Zhicong1,2; Hu, Chunxiang1; Shen, Yinwu1; Liu, Yongding1; Li, Dunhai1; Liu, YD (reprint author), Chinese Acad Sci, Inst Hydrobiol, South Donghu Rd, Wuhan 430042, Hubei, Peoples R China.
2013
Source PublicationFRESENIUS ENVIRONMENTAL BULLETIN
ISSN1018-4619
Volume22Issue:1APages:252-260
AbstractBiological soil crusts (BSCs) play a crucial role in counteracting desertification. Manmade biotic crusts (MBCs) could be established rapidly by inoculation of cyanobacterial strains Microcoleus vaginatus and Scytonema javanicum in Hobq Desert, Inner Mongolia of China. This study investigated the morphological and ecophysiological characteristics as well as microstructures of MBCs in a field setting. Based on their color and succession process, MBCs were sequentially divided into five stages as, light gray, gray-black, black, black-green and green crusts. Their compressive strength, thickness, species number of cyanobacteria and eukaryotic algae, photosynthetic efficiency as well as carbon-assimilation rates increased with the development of MBCs. In addition, among the five successional stages, green crusts had the highest contents of chlorophyll a; however, black crusts had the highest content of scytonemin. By ultrastructural observation, filamentous cyanobacteria were found closely bound to sand particles. The findings of this study have important theoretical implications for understanding the survival and developmental conditions of MBCs in the field. Furthermore, the results have also clearly demonstrated the feasibility of counteracting desertification by inoculation of MBCs in desert areas.; Biological soil crusts (BSCs) play a crucial role in counteracting desertification. Manmade biotic crusts (MBCs) could be established rapidly by inoculation of cyanobacterial strains Microcoleus vaginatus and Scytonema javanicum in Hobq Desert, Inner Mongolia of China. This study investigated the morphological and ecophysiological characteristics as well as microstructures of MBCs in a field setting. Based on their color and succession process, MBCs were sequentially divided into five stages as, light gray, gray-black, black, black-green and green crusts. Their compressive strength, thickness, species number of cyanobacteria and eukaryotic algae, photosynthetic efficiency as well as carbon-assimilation rates increased with the development of MBCs. In addition, among the five successional stages, green crusts had the highest contents of chlorophyll a; however, black crusts had the highest content of scytonemin. By ultrastructural observation, filamentous cyanobacteria were found closely bound to sand particles. The findings of this study have important theoretical implications for understanding the survival and developmental conditions of MBCs in the field. Furthermore, the results have also clearly demonstrated the feasibility of counteracting desertification by inoculation of MBCs in desert areas.
SubtypeArticle
KeywordAlgae Biological Soil Crusts Cyanobacteria Desertification Manmade Biotic Crusts Succession
Department[Wu, Peipei ; Rao, Benqiang ; Wang, Zhicong ; Hu, Chunxiang ; Shen, Yinwu ; Liu, Yongding ; Li, Dunhai] Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China ; [Wu, Peipei ; Wang, Zhicong] Univ Chinese Acad Sci, Beijing 100049, Peoples R China ; [Rao, Benqiang] Xinyang Normal Univ, Coll Life Sci, Xinyang 464000, Peoples R China
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Funding OrganizationNational Key Technology RD Program [2009BAC54B01] ; National Key Technology RD Program [2009BAC54B01] ; National Key Technology RD Program [2009BAC54B01] ; National Key Technology RD Program [2009BAC54B01]
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000330269800015
WOS KeywordBIOLOGICAL SOIL CRUSTS ; CYANOBACTERIUM MICROCOLEUS-VAGINATUS ; ALGAL CRUSTS ; DESERT SOIL ; COMMUNITY COMPOSITION ; NITROGEN-FIXATION ; INNER-MONGOLIA ; STABILITY ; CARBON ; STABILIZATION
Funding OrganizationNational Key Technology RD Program [2009BAC54B01] ; National Key Technology RD Program [2009BAC54B01] ; National Key Technology RD Program [2009BAC54B01] ; National Key Technology RD Program [2009BAC54B01]
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/19977
Collection水环境工程研究中心_期刊论文
Corresponding AuthorLiu, YD (reprint author), Chinese Acad Sci, Inst Hydrobiol, South Donghu Rd, Wuhan 430042, Hubei, Peoples R China.
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Xinyang Normal Univ, Coll Life Sci, Xinyang 464000, Peoples R China
Recommended Citation
GB/T 7714
Wu, Peipei,Rao, Benqiang,Wang, Zhicong,et al. SUCCESSION AND CONTRIBUTIONS TO ECOSYSTEM FUNCTION OF MANMADE BIOTIC CRUSTS[J]. FRESENIUS ENVIRONMENTAL BULLETIN,2013,22(1A):252-260.
APA Wu, Peipei.,Rao, Benqiang.,Wang, Zhicong.,Hu, Chunxiang.,Shen, Yinwu.,...&Liu, YD .(2013).SUCCESSION AND CONTRIBUTIONS TO ECOSYSTEM FUNCTION OF MANMADE BIOTIC CRUSTS.FRESENIUS ENVIRONMENTAL BULLETIN,22(1A),252-260.
MLA Wu, Peipei,et al."SUCCESSION AND CONTRIBUTIONS TO ECOSYSTEM FUNCTION OF MANMADE BIOTIC CRUSTS".FRESENIUS ENVIRONMENTAL BULLETIN 22.1A(2013):252-260.
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