In-depth analysis of core methanogenic communities from high elevation   permafrost-affected wetlands

doi:10.1016/j.soilbio.2017.03.007

CORC > 北京大学 > 城市与环境学院

	In-depth analysis of core methanogenic communities from high elevation permafrost-affected wetlands
	Yang, Sizhong ; Liebner, Susanne ; Winkel, Matthias ; Alawi, Mashal ; Horn, Fabian ; Doerfer, Corina ; Ollivier, Julien ; He, Jin-Sheng ; Jin, Huijun ; Kuehn, Peter ; Schloter, Michael ; Scholten, Thomas ; Wagner, Dirk
刊名	SOIL BIOLOGY & BIOCHEMISTRY
	2017
关键词	Methanogenic archaea Wetland mcTA gene Frozen ground Tibetan Plateau Biogeography Methanoregula QINGHAI-TIBET PLATEAU METHANE EMISSIONS MICROBIAL COMMUNITY THAWING PERMAFROST POLYGONAL TUNDRA ZOIGE WETLAND LENA DELTA PEAT BOG CARBON ECOSYSTEMS
DOI	10.1016/j.soilbio.2017.03.007
英文摘要	The organic carbon of permafrost affected soils is receiving particular attention with respect to its fate and potential feedback to global warming. The structural and activity changes of methanogenic communities in the degrading permafrost-affected wetlands on the Tibetan Plateau can serve as fundamental elements for modelling feedback interaction of ecosystems to climate change. Hence, we aimed at anticipating if and how the rapid environmental changes occurring especially on the high altitude Tibetan platform will affect methanogenic communities. We identified methanogenic community composition, activity and abundance in wetland soils with different hydrological settings, permafrost extent and soil properties and pinpoint the environmental controls. We show that despite a pronounced natural gradient, the Tibetan high elevation wetland soils host a large methanogenic core microbiome. Hydrogenotrophic methanogens, in particular Methanoregula, and H2-dependent methanogenesis were overall dominant although acetoclastic methanogens in addition to hydrogenotrophs were among the dominating taxa in a minerotrophic fen. Tracing the Methanoregula community of the Tibetan Plateau using public databases revealed its global relevance in natural terrestrial habitats. Unlike the composition, the activity and abundance of methanogens varied strongly in the studied soils with higher values in alpine swamps than in alpine meadows. This study indicates that in the course of current wetland and permafrost degradation and the loss in soil moisture, a decrease in the methane production potential is expected on the high Tibetan Plateau but it will not lead to pronounced changes within the methanogenic community structure. (C) 2017 The Authors. Published by Elsevier Ltd.; German Federal Ministry of Education and Research (BMBF) [03G081013, 03G0810C, 03G0810A]; Helmholtz Association (HGF) [VH-NG-919]; SCI(E); ARTICLE; 66-77; 111
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/471976]
专题	城市与环境学院
推荐引用方式 GB/T 7714	Yang, Sizhong,Liebner, Susanne,Winkel, Matthias,et al. In-depth analysis of core methanogenic communities from high elevation permafrost-affected wetlands[J]. SOIL BIOLOGY & BIOCHEMISTRY,2017.
APA	Yang, Sizhong.,Liebner, Susanne.,Winkel, Matthias.,Alawi, Mashal.,Horn, Fabian.,...&Wagner, Dirk.(2017).In-depth analysis of core methanogenic communities from high elevation permafrost-affected wetlands.SOIL BIOLOGY & BIOCHEMISTRY.
MLA	Yang, Sizhong,et al."In-depth analysis of core methanogenic communities from high elevation permafrost-affected wetlands".SOIL BIOLOGY & BIOCHEMISTRY (2017).