IHB OpenIR  > 藻类生物学及应用研究中心  > 期刊论文
Assessing Level of Development and Successional Stages in Biological Soil Crusts with Biological Indicators
Lan, Shubin1; Wu, Li1; Zhang, Delu2; Hu, Chunxiang1; Hu, CX (reprint author), Chinese Acad Sci, Inst Hydrobiol, Key Lab Algal Biol, Wuhan 430072, Peoples R China.
2013-08-01
Source PublicationMICROBIAL ECOLOGY
ISSN0095-3628
Volume66Issue:2Pages:394-403
AbstractBiological soil crusts (BSCs) perform vital ecosystem services, but the difference in biological components or developmental level still affects the rate and type of these services. In order to differentiate crust successional stages in quantity and analyze the relationship between crust developmental level and successional stages, this work determined several biological indicators in a series of different developmental BSCs in the Shapotou region of China. The results showed that crust developmental level (level of development index) can be well indicated by crust biological indicators. Photosynthetic biomass was the most appropriate to differentiate crust successional stages, although both photosynthetic biomass and respiration intensity increased with the development and succession of BSCs. Based on of the different biological compositions, BSCs were quantificationally categorized into different successional stages including cyanobacterial crusts (lichen and moss coverages < 20 %), lichen crusts (lichen coverage > 20 % but moss coverage < 20 %), semi-moss crusts (moss coverage > 20 % but < 75 %), and moss crusts (moss coverage > 75 %). In addition, it was found that cyanobacterial and microalgal biomass first increased as cyanobacterial crusts formed, then decreased when lots of mosses emerged on the crust surface; however nitrogen-fixing cyanobacteria and heterotrophic microbes increased in the later developmental BSCs. The structural adjustment of biological components in the different developmental BSCs may reflect the requirement of crust survival and material transition.; Biological soil crusts (BSCs) perform vital ecosystem services, but the difference in biological components or developmental level still affects the rate and type of these services. In order to differentiate crust successional stages in quantity and analyze the relationship between crust developmental level and successional stages, this work determined several biological indicators in a series of different developmental BSCs in the Shapotou region of China. The results showed that crust developmental level (level of development index) can be well indicated by crust biological indicators. Photosynthetic biomass was the most appropriate to differentiate crust successional stages, although both photosynthetic biomass and respiration intensity increased with the development and succession of BSCs. Based on of the different biological compositions, BSCs were quantificationally categorized into different successional stages including cyanobacterial crusts (lichen and moss coverages < 20 %), lichen crusts (lichen coverage > 20 % but moss coverage < 20 %), semi-moss crusts (moss coverage > 20 % but < 75 %), and moss crusts (moss coverage > 75 %). In addition, it was found that cyanobacterial and microalgal biomass first increased as cyanobacterial crusts formed, then decreased when lots of mosses emerged on the crust surface; however nitrogen-fixing cyanobacteria and heterotrophic microbes increased in the later developmental BSCs. The structural adjustment of biological components in the different developmental BSCs may reflect the requirement of crust survival and material transition.
SubtypeArticle
KeywordAlgal Crusts Cyanobacterial Crusts Nitrogen-fixation Colorado Plateau Co2 Exchange Desert Soil Diversity Surface Water Microstructure
Department[Lan, Shubin ; Wu, Li ; Hu, Chunxiang] Chinese Acad Sci, Inst Hydrobiol, Key Lab Algal Biol, Wuhan 430072, Peoples R China ; [Zhang, Delu] Wuhan Univ Technol, Dept Biol Sci & Biotechnol, Wuhan 430070, Peoples R China
DOI10.1007/s00248-013-0191-6
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Funding OrganizationNational Natural Science Foundation of China [31170464] ; National Natural Science Foundation of China [31170464] ; National Natural Science Foundation of China [31170464] ; National Natural Science Foundation of China [31170464]
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology ; Marine & Freshwater Biology ; Microbiology
WOS SubjectEcology ; Marine & Freshwater Biology ; Microbiology
WOS IDWOS:000321668900014
WOS KeywordALGAL CRUSTS ; CYANOBACTERIAL CRUSTS ; NITROGEN-FIXATION ; COLORADO PLATEAU ; CO2 EXCHANGE ; DESERT SOIL ; DIVERSITY ; SURFACE ; WATER ; MICROSTRUCTURE
Funding OrganizationNational Natural Science Foundation of China [31170464] ; National Natural Science Foundation of China [31170464] ; National Natural Science Foundation of China [31170464] ; National Natural Science Foundation of China [31170464]
Citation statistics
Cited Times:41[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/19631
Collection藻类生物学及应用研究中心_期刊论文
Corresponding AuthorHu, CX (reprint author), Chinese Acad Sci, Inst Hydrobiol, Key Lab Algal Biol, Wuhan 430072, Peoples R China.
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, Key Lab Algal Biol, Wuhan 430072, Peoples R China
2.Wuhan Univ Technol, Dept Biol Sci & Biotechnol, Wuhan 430070, Peoples R China
Recommended Citation
GB/T 7714
Lan, Shubin,Wu, Li,Zhang, Delu,et al. Assessing Level of Development and Successional Stages in Biological Soil Crusts with Biological Indicators[J]. MICROBIAL ECOLOGY,2013,66(2):394-403.
APA Lan, Shubin,Wu, Li,Zhang, Delu,Hu, Chunxiang,&Hu, CX .(2013).Assessing Level of Development and Successional Stages in Biological Soil Crusts with Biological Indicators.MICROBIAL ECOLOGY,66(2),394-403.
MLA Lan, Shubin,et al."Assessing Level of Development and Successional Stages in Biological Soil Crusts with Biological Indicators".MICROBIAL ECOLOGY 66.2(2013):394-403.
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