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Magnitude and Drivers of Potential Methane Oxidation and Production across the Tibetan Alpine Permafrost Region
Zhang, Qiwen1; Yang, Guibiao1; Song, Yutong1; Kou, Dan1; Wang, Guanqin1; Zhang, Dianye1; Qin, Shuqi1; Mao, Chao1; Feng, Xuehui1; Yang, Yuanhe1
2019
Source PublicationENVIRONMENTAL SCIENCE & TECHNOLOGY
ISSN0013-936X
Volume53Issue:24Pages:14243-14252
AbstractMethane (CH4) dynamics across permafrost regions is critical in determining the magnitude and direction of permafrost carbon (C)-climate feedback. However, current studies are mainly derived from the Arctic area, with limited evidence from other permafrost regions. By combining large-scale laboratory incubation across 51 sampling sites with machine learning techniques and bootstrap analysis, here, we determined regional patterns and dominant drivers of CH4 oxidation potential in alpine steppe and meadow (CH4 sink areas) and CH4 production potential in swamp meadow (CH4 source areas) across the Tibetan alpine permafrost region. Our results showed that both CH4 oxidation potential (in alpine steppe and meadow) and CH4 production potential (in swamp meadow) exhibited large variability across various sampling sites, with the median value being 8.7, 9.6, and 11.5 ng g(-1) dry soil h(-1), respectively. Our results also revealed that methanotroph abundance and soil moisture were two dominant factors regulating CH4 oxidation potential, whereas CH4 production potential was mainly affected by methanogen abundance and the soil organic carbon content, with functional gene abundance acting as the best explaining variable. These results highlight the crucial role of microbes in regulating CH4 dynamics, which should be considered when predicting the permafrost C cycle under future climate scenarios.
Subject AreaEngineering, Environmental ; Environmental Sciences
DOI10.1021/acs.est.9b03490
Indexed BySCI
Language英语
WOS KeywordGREENHOUSE-GAS FLUXES ; IN-SITU MEASUREMENTS ; ATMOSPHERIC METHANE ; CLIMATE-CHANGE ; CARBON ; SOIL ; EMISSIONS ; CONSUMPTION ; RESPONSES ; MOISTURE
WOS Research AreaEngineering ; Environmental Sciences & Ecology
WOS IDWOS:000503910500020
PublisherAMER CHEMICAL SOC
SubtypeArticle
Publication PlaceWASHINGTON
EISSN1520-5851
Funding OrganizationNational Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31670482, 31825006, 31988102] ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences [QYZDB-SSWSMC049] ; Chinese Academy of Sciences -Peking University Pioneer Cooperation Team
Corresponding Author Emailyhyang@ibcas.ac.cn
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ibcas.ac.cn/handle/2S10CLM1/19484
Collection植被与环境变化国家重点实验室
Affiliation1.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
Recommended Citation
GB/T 7714
Zhang, Qiwen,Yang, Guibiao,Song, Yutong,et al. Magnitude and Drivers of Potential Methane Oxidation and Production across the Tibetan Alpine Permafrost Region[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2019,53(24):14243-14252.
APA Zhang, Qiwen.,Yang, Guibiao.,Song, Yutong.,Kou, Dan.,Wang, Guanqin.,...&Yang, Yuanhe.(2019).Magnitude and Drivers of Potential Methane Oxidation and Production across the Tibetan Alpine Permafrost Region.ENVIRONMENTAL SCIENCE & TECHNOLOGY,53(24),14243-14252.
MLA Zhang, Qiwen,et al."Magnitude and Drivers of Potential Methane Oxidation and Production across the Tibetan Alpine Permafrost Region".ENVIRONMENTAL SCIENCE & TECHNOLOGY 53.24(2019):14243-14252.
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