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Microbial Communities and Associated Enzyme Activities in Alpine Wetlands with Increasing Altitude on the Tibetan Plateau
Lei, TZ (Lei Tianzhu)1; Si, GC (Si Guicai)1; Wang, J (Wang Jian)2; Zhang, GX (Zhang Gengxin)3; Zhang, GX
Source PublicationWETLANDS
2017
Volume37Issue:3Pages:401-412
DOI10.1007/s13157-017-0876-6
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.
Subject Area普通生物学
WOS IDWOS:000403573000001
Language英语
Indexed BySCI
KeywordFATTY-ACID PROFILES BACTERIAL COMMUNITIES SPATIAL-DISTRIBUTION ORGANIC-CARBON SOIL BIOMASS DIVERSITY GRADIENT FOREST BIOGEOGRAPHY
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEcology; Environmental Sciences ; Environmental Sciences & Ecology
Cooperation Status国内
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/8203
Collection图书馆
Corresponding AuthorZhang, GX
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, TZ ,Si, GC ,Wang, J ,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, TZ ,Si, GC ,Wang, J ,Zhang, GX ,&Zhang, GX.(2017).Microbial Communities and Associated Enzyme Activities in Alpine Wetlands with Increasing Altitude on the Tibetan Plateau.WETLANDS,37(3),401-412.
MLA Lei, TZ ,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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