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Methanogenic Community, CH4 Production Potential and Its Determinants in the Active Layer and Permafrost Deposits on the Tibetan Plateau

文献类型：期刊论文

作者Song, Yutong2; Chen, Leiyi; Kang, Luyao2; Yang, Guibiao; Qin, Shuqi2; Zhang, Qiwen; Mao, Chao2; Kou, Dan; Fang, Kai2; Feng, Xuehui2
刊名ENVIRONMENTAL SCIENCE & TECHNOLOGY
出版日期2021
卷号55期号:16页码:11412-11423
ISSN号0013-936X
关键词anaerobic decomposition carbon cycle climate warming methane methanogens permafrost thaw
DOI10.1021/acs.est.0c07267
文献子类Article
英文摘要Permafrost thaw could increase methane (CH4) emissions, which largely depends on CH4 production driven by methanogenic archaea. However, large-scale evidence regarding key methanogenic taxa and their relative importance to abiotic factors in mediating methanogenesis remains limited. Here, we explored the methanogenic community, potential CH4 production and its determinants in the active layer and permafrost deposits based on soil samples acquired from 12 swamp meadow sites along a , similar to 1000 km permafrost transect on the Tibetan Plateau. Our results revealed lower CH4 production potential, mcrA gene abundance, and richness in the permafrost layer than those in the active layer. CH4 production potential in both soil layers was regulated by microbial and abiotic factors. Of the microbial properties, marker OTUs, rather than the abundance and diversity of methanogens, stimulated CH4 production potential. Marker OTUs differed between the two soil layers with hydrogenotrophic Methanocellales and facultative acetoclastic Methanosarcina predominant in regulating CH4 production potential in the permafrost and active layer, respectively. Besides microbial drivers, CH4 production potential increased with the carbon/nitrogen (C/N) ratio in both soil layers and was also stimulated by soil moisture in the permafrost layer. These results provide empirical evidence for model improvements to better predict permafrost carbon feedback to climate warming.
学科主题Engineering, Environmental ; Environmental Sciences
电子版国际标准刊号1520-5851
出版地WASHINGTON
WOS关键词METHANE PRODUCTION ; CARBON RELEASE ; CLIMATE-CHANGE ; RIBOSOMAL-RNA ; MCRA GENE ; SOILS ; EMISSIONS ; VULNERABILITY ; METABOLISM ; FEEDBACKS
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
语种英语
出版者AMER CHEMICAL SOC
WOS记录号WOS:000687063400052
资助机构National Natural Science Foundation of China [31825006, 31988102, 91837312] ; Second Tibetan Plateau Scientific Expedition and Research (STEP) Program [2019QZKK0106, 2019QZKK0302] ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences [QYZDB-SSW-SMC049]
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/26308]  
专题植被与环境变化国家重点实验室
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
推荐引用方式
GB/T 7714		 Song, Yutong,Chen, Leiyi,Kang, Luyao,et al. Methanogenic Community, CH4 Production Potential and Its Determinants in the Active Layer and Permafrost Deposits on the Tibetan Plateau[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2021,55(16):11412-11423.
APA Song, Yutong.,Chen, Leiyi.,Kang, Luyao.,Yang, Guibiao.,Qin, Shuqi.,...&Yang, Yuanhe.(2021).Methanogenic Community, CH4 Production Potential and Its Determinants in the Active Layer and Permafrost Deposits on the Tibetan Plateau.ENVIRONMENTAL SCIENCE & TECHNOLOGY,55(16),11412-11423.
MLA Song, Yutong,et al."Methanogenic Community, CH4 Production Potential and Its Determinants in the Active Layer and Permafrost Deposits on the Tibetan Plateau".ENVIRONMENTAL SCIENCE & TECHNOLOGY 55.16(2021):11412-11423.

入库方式： OAI收割

来源：植物研究所

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