Microbial Communities and Associated Enzyme Activities in Alpine Wetlands with Increasing Altitude on the Tibetan Plateau

doi:10.1007/s13157-017-0876-6

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 成都山地所知识仓储（2009年以前）

	Microbial Communities and Associated Enzyme Activities in Alpine Wetlands with Increasing Altitude on the Tibetan Plateau
	Lei Tianzhu 1; Si Guicai 1; Wang Jian 2; Zhang Gengxin 3
刊名	WETLANDS
	2017-06-01
卷号	37 期号:3 页码:401-412
关键词	Microbial Community Enzyme Activity Altitude Gradient Alpine Wetlands
ISSN号	0277-5212
DOI	10.1007/s13157-017-0876-6
通讯作者	Lei Tianzhu
英文摘要	Microbial 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.
语种	英语
WOS记录号	WOS:000403573000001
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/18776]
专题	成都山地灾害与环境研究所_成都山地所知识仓储（2009年以前）
作者单位	1.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
推荐引用方式 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.