More enhanced non-growing season methane exchanges under warming on the Qinghai-Tibetan Plateau
文献类型：期刊论文
| 作者 | Liu, Zhenhai1,2,3; Chen, Bin1,3; Wang, Shaoqiang1,2,4,5; Xu, Xiyan6; Chen, Huai7,8; Liu, Xinwei7,8; He, Jin-Sheng9,10,11; Wang, Jianbin9; Wang, Jinsong1; Chen, Jinghua1 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2024-03-20 |
| 卷号 | 917页码:10 |
| 关键词 | Methane exchange The Qinghai-Tibetan Plateau Temperature sensitivity Seasonality Data integration Machine learning |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2024.170438 |
| 通讯作者 | Chen, Bin(chenbin@igsnrr.ac.cn) ; Wang, Shaoqiang(sqwang@igsnrr.ac.cn) |
| 英文摘要 | Uncertainty in methane (CH4) exchanges across wetlands and grasslands in the Qinghai -Tibetan Plateau (QTP) is projected to increase due to continuous permafrost degradation and asymmetrical seasonal warming. Temperature plays a vital role in regulating CH4 exchange, yet the seasonal patterns of temperature dependencies for CH4 fluxes over the wetlands and grasslands on the QTP remain poorly understood. Here, we demonstrated a stronger warming response of CH4 exchanges during the non -growing season compared to the growing season on the QTP. Analyzing 9745 daily observations and employing four methods -regression fitting of temperatureCH4 flux, temperature dependence calculations, field -based and model -based control experiments-we found that warming intensified CH4 emissions in wetlands and uptakes in grasslands. Specifically, the average reaction intensity in the non -growing season surpasses that in the growing season by 1.89 and 4.80 times, respectively. This stronger warming response of CH4 exchanges during the non -growing season significantly increases the regional CH4 exchange on the QTP. Our research reveals that CH4 exchanges in the QTP have a higher warming sensitivity in non -growing seasons, which meanwhile are dominated by a larger warming rate than the annual average. The combined effects of these two factors will significantly alter the CH4 source/sink on the QTP. Neglecting these impacts would lead to inaccurate estimations of CH4 source/sink over the QTP under climate warming. |
| WOS关键词 | EDDY COVARIANCE ; EMISSIONS ; CONSUMPTION ; PERMAFROST ; WETLANDS ; FLUXES ; SOILS ; CH4 ; RESPIRATION ; DEGRADATION |
| 资助项目 | Open Foundation of the Key Laboratory of Coupling Process and Effect of Natural Resources Elements[2021046279] ; National Key Scientific and Technological Infrastructure project Earth System Numerical Simulation Facility[2022KFKTC006] ; [2023-EL-PT-000433] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001177231500001 |
| 出版者 | ELSEVIER |
| 资助机构 | Open Foundation of the Key Laboratory of Coupling Process and Effect of Natural Resources Elements ; National Key Scientific and Technological Infrastructure project Earth System Numerical Simulation Facility |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/203763]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Chen, Bin; Wang, Shaoqiang |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 3.Key Lab Coupling Proc & Effect Nat Resources Eleme, Beijing 100055, Peoples R China 4.China Univ Geosci, Sch Geog & Informat Engn, Hubei Key Lab Reg Ecol & Environm Change, Wuhan 430078, Peoples R China 5.Minist Nat Resources, Technol Innovat Ctr Intelligent Monitoring & Spati, Wuhan 430078, Peoples R China 6.Chinese Acad Sci, Key Lab Reg Climate Environm Temperate East Asia, Inst Atmospher Phys, Beijing 100029, Peoples R China 7.Chinese Acad Sci, Chengdu Inst Biol, Key Lab Mt Ecol Restorat & Bioresource Utilizat &, Chengdu 610041, Peoples R China 8.Chinese Acad Sci, Zoige Peatland & Global Change Res Stn, Hongyuan 624400, Peoples R China 9.Lanzhou Univ, Coll Pastoral Agr Sci & Technol, State Key Lab Herbage Improvement & Grassland Agro, Lanzhou 730000, Peoples R China 10.Peking Univ, Coll Urban & Environm Sci, Dept Ecol, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Zhenhai,Chen, Bin,Wang, Shaoqiang,et al. More enhanced non-growing season methane exchanges under warming on the Qinghai-Tibetan Plateau[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2024,917:10. |
| APA | Liu, Zhenhai.,Chen, Bin.,Wang, Shaoqiang.,Xu, Xiyan.,Chen, Huai.,...&Wang, Xueqing.(2024).More enhanced non-growing season methane exchanges under warming on the Qinghai-Tibetan Plateau.SCIENCE OF THE TOTAL ENVIRONMENT,917,10. |
| MLA | Liu, Zhenhai,et al."More enhanced non-growing season methane exchanges under warming on the Qinghai-Tibetan Plateau".SCIENCE OF THE TOTAL ENVIRONMENT 917(2024):10. |
入库方式： OAI收割
来源：地理科学与资源研究所
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