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Methanogenic Community, CH4 Production Potential and Its Determinants in the Active Layer and Permafrost Deposits on the Tibetan Plateau | |
Song, Yutong1; Chen, Leiyi; Kang, Luyao1; Yang, Guibiao; Qin, Shuqi1; Zhang, Qiwen; Mao, Chao1; Kou, Dan; Fang, Kai1; Feng, Xuehui1; Yang, Yuanhe1 | |
2021 | |
发表期刊 | ENVIRONMENTAL SCIENCE & TECHNOLOGY |
ISSN | 0013-936X |
卷号 | 55期号:16页码:11412-11423 |
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. |
关键词 | anaerobic decomposition carbon cycle climate warming methane methanogens permafrost thaw |
学科领域 | Engineering, Environmental ; Environmental Sciences |
DOI | 10.1021/acs.est.0c07267 |
收录类别 | SCI |
语种 | 英语 |
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) |
WOS记录号 | WOS:000687063400052 |
出版者 | AMER CHEMICAL SOC |
文献子类 | Article |
出版地 | WASHINGTON |
EISSN | 1520-5851 |
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] |
作者邮箱 | yhyang@ibcas.ac.cn |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | 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.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, 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. |
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