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Microbial Communities and Associated Enzyme Activities in Alpine Wetlands with Increasing Altitude on the Tibetan Plateau
Lei Tianzhu1; Si Guicai1; Wang Jian2; Zhang Gengxin3
Corresponding AuthorLei Tianzhu
2017-06-01
Source PublicationWETLANDS
ISSN0277-5212
Volume37Issue:3Pages:401-412
SubtypeArticle
AbstractMicrobial communities, enzyme activities and soil physiochemical characteristics were investigated in alpine wetlands with altitude changes in the Nyainqentanglha Mountains on the Tibetan plateau. The results showed that with an increasing altitude gradient, soil physicochemical properties such as total organic carbon (TOC), total nitrogen (TN), water-soluble organic carbon (WSOC), water-soluble organic nitrogen (WSON) and pH decreased coincident with a decrease in mean annual temperature (MAT). Bacteria biomass, fungal biomass and actinobacterial biomass all decreased with an increase in altitude gradient. The ratio of Gram-positive bacteria to Gram-negative bacteria and the ratio of cyclopropyl to precursor fatty acids all indicate that the level of environmental harshness intensified with an increase in altitude. We also found that soil enzyme activities such as phenol oxidase, peroxidase, L-asparaginase, protease, urease and alkaline phosphatase all consistently decreased with an increase in altitude gradient. Additionally, the activities of peroxidase, protease and alkaline phosphatase declined, mainly due to a reduction in enzyme activities with temperature rather than the reduction of associated microbial biomass. Statistical analysis showed that both microbial biomass and enzyme activities were significantly influenced by mean annual temperature, suggesting that temperature is a key factor that affects microbial communities and soil enzyme activities in alpine wetlands on the Tibetan Plateau and indicating that climate warming may significantly impact these areas.
KeywordMicrobial Community Enzyme Activity Altitude Gradient Alpine Wetlands
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1007/s13157-017-0876-6
WOS Subject ExtendedEnvironmental Sciences & Ecology
Indexed BySCI
WOS KeywordFATTY-ACID PROFILES ; BACTERIAL COMMUNITIES ; SPATIAL-DISTRIBUTION ; ORGANIC-CARBON ; SOIL ; BIOMASS ; DIVERSITY ; GRADIENT ; FOREST ; BIOGEOGRAPHY
Language英语
WOS SubjectEcology ; Environmental Sciences
WOS IDWOS:000403573000001
Funding Organization973 Project from Science & Technology Department of China(2010CB951304-3) ; Knowledge Innovation Program of the Chinese Academy of Sciences(KZCX2-EW-112) ; Program of western light of the Chinese Academy of Sciences(Y508RC1SGC)
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Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/18776
Collection成都山地所知识仓储(2009年以前)
Affiliation1.Chinese Acad Sci, Key Lab Petr Resources, Gansu Prov Key Lab Petr Resources Res, Inst Geol & Geophys, Lanzhou 730000, Peoples R China
2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
3.Chinese Acad Sci, Inst Tibetan Plateau, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Lei Tianzhu,Si Guicai,Wang Jian,et al. Microbial Communities and Associated Enzyme Activities in Alpine Wetlands with Increasing Altitude on the Tibetan Plateau[J]. WETLANDS,2017,37(3):401-412.
APA Lei Tianzhu,Si Guicai,Wang Jian,&Zhang Gengxin.(2017).Microbial Communities and Associated Enzyme Activities in Alpine Wetlands with Increasing Altitude on the Tibetan Plateau.WETLANDS,37(3),401-412.
MLA Lei Tianzhu,et al."Microbial Communities and Associated Enzyme Activities in Alpine Wetlands with Increasing Altitude on the Tibetan Plateau".WETLANDS 37.3(2017):401-412.
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