Canadian net forest CO2 uptake enhanced by heat drought via reduced respiration
文献类型：期刊论文
| 作者 | Dong, Guanyu25; Jiang, Fei23,24,25; Zhang, Yongguang23,24,25; Ju, Weimin25; Piao, Shilong22; Ciais, Philippe21; Peters, Wouter20; Luijkx, Ingrid T.20; Liu, Junjie19; Chevallier, Frederic21 |
| 刊名 | NATURE GEOSCIENCE
 |
| 出版日期 | 2026-01-05 |
| 卷号 | N/A |
| ISSN号 | 1752-0894 |
| DOI | 10.1038/s41561-025-01875-1 |
| 产权排序 | 15 |
| 文献子类 | Article ; Early Access |
| 英文摘要 | The response of net forest carbon uptake to warm extremes remains elusive. The year 2023 was at the time 'the hottest year on record' globally, with Canada's forests experiencing warm anomalies of above 2 degrees C and unprecedented drought and wildfires, providing a unique case to examine the response of boreal forest net carbon uptake to climate extremes. Here we combine satellite-based atmospheric CO2 flux inversions with ground-based in situ observations of CO2 fluxes and concentrations to investigate Canada's forest net carbon uptake and its underlying mechanisms in 2023. We find that, compared with 2015-2022, Canada's forest net carbon uptake was enhanced by 0.28 +/- 0.23 PgC, offsetting 38-48% of Canadian wildfire emissions in 2023. This enhanced net uptake was dominated by large ecosystem respiration reductions, mainly attributable to severe root-zone soil moisture deficits and the unimodal temperature response of respiration. However, most dynamic global vegetation models failed to simulate the respiration reductions and the responses to hydrothermal conditions well. This study improves our understanding of boreal forest net carbon uptake in response to climate extremes and highlights an urgent need to improve vegetation models under global warming. |
| URL标识 | 查看原文 |
| WOS关键词 | CARBON-DIOXIDE ; DATA ASSIMILATION ; XCO2 RETRIEVALS ; BOREAL FORESTS ; FLUXES ; IMPACT ; MODEL ; TEMPERATURE ; EXCHANGE ; SURFACE |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001654056500001 |
| 出版者 | NATURE PORTFOLIO |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/219637]  |
| 专题 | 生态系统网络观测与模拟院重点实验室_外文论文 |
| 通讯作者 | Jiang, Fei |
| 作者单位 | 1.Oak Ridge Natl Lab, Climate Change Sci Inst, Environm Sci Div, Oak Ridge, TN USA; 2.Univ Toronto, Dept Geog & Planning, Toronto, ON, Canada; 3.Univ Maryland, Dept Geog Sci, College Pk, MD USA; 4.Sorbonne Univ, Univ PSL, CNRS,Ecole Normale Super,Ecole Polytech, Lab Meteorol Dynam LMD,Inst Pierre Simon Laplace, Paris, France; 5.Sun Yat Sen Univ, Sch Geog & Planning, Guangzhou, Peoples R China; 6.Univ New Hampshire, Earth Syst Res Ctr, Inst Study Earth Oceans & Space, Durham, NH 03824 USA; 7.Nanjing Univ Informat Sci & Technol, Inst Energy Supply Technol Highend Equipment, Jiangsu Collaborat Innovat Ctr Atmospher Environm, Sch Environm Sci & Engn,Jiangsu Key Lab Atmospher, Nanjing, Peoples R China; 8.Southwest Univ, Sch Geog Sci, Chongqing Jinfo Mt Karst Ecosyst, Natl Observat & Res Stn, Chongqing, Peoples R China; 9.Chinese Acad Sci, Aerosp Informat Res Inst, Key Lab Digital Earth Sci, Beijing, Peoples R China; 10.Northwest A&F Univ, Coll Nat Resources & Environm, Yangling, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Dong, Guanyu,Jiang, Fei,Zhang, Yongguang,et al. Canadian net forest CO2 uptake enhanced by heat drought via reduced respiration[J]. NATURE GEOSCIENCE,2026,N/A. |
| APA | Dong, Guanyu.,Jiang, Fei.,Zhang, Yongguang.,Ju, Weimin.,Piao, Shilong.,...&Chen, Jing M..(2026).Canadian net forest CO2 uptake enhanced by heat drought via reduced respiration.NATURE GEOSCIENCE,N/A. |
| MLA | Dong, Guanyu,et al."Canadian net forest CO2 uptake enhanced by heat drought via reduced respiration".NATURE GEOSCIENCE N/A(2026). |
入库方式： OAI收割
来源：地理科学与资源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。