Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.14917 |
State of the science in reconciling top-down and bottom-up approaches for terrestrial CO2 budget | |
Kondo, Masayuki1; Patra, Prabir K.1,2; Sitch, Stephen3; Friedlingstein, Pierre4; Poulter, Benjamin5; Chevallier, Frederic6; Ciais, Philippe6; Canadell, Josep G.7; Bastos, Ana8; Lauerwald, Ronny9; Calle, Leonardo10; Ichii, Kazuhito1,11; Anthoni, Peter12; Arneth, Almut12; Haverd, Vanessa13; Jain, Atul K.14; Kato, Etsushi15; Kautz, Markus12,16; Law, Rachel M.17; Lienert, Sebastian18,19; Lombardozzi, Danica20; Maki, Takashi21; Nakamura, Takashi22; Peylin, Philippe6; Roedenbeck, Christian23; Zhuravlev, Ruslan24; Saeki, Tazu11; Tian, Hanqin25; Zhu, Dan6; Ziehn, Tilo17 | |
2019-12-12 | |
发表期刊 | GLOBAL CHANGE BIOLOGY |
ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2019 |
文章类型 | Article;Early Access |
语种 | 英语 |
国家 | Japan; England; USA; France; Australia; Germany; Belgium; Switzerland; Russia |
英文摘要 | Robust estimates of CO2 budget, CO2 exchanged between the atmosphere and terrestrial biosphere, are necessary to better understand the role of the terrestrial biosphere in mitigating anthropogenic CO2 emissions. Over the past decade, this field of research has advanced through understanding of the differences and similarities of two fundamentally different approaches: "top-down" atmospheric inversions and "bottom-up" biosphere models. Since the first studies were undertaken, these approaches have shown an increasing level of agreement, but disagreements in some regions still persist, in part because they do not estimate the same quantity of atmosphere-biosphere CO2 exchange. Here, we conducted a thorough comparison of CO2 budgets at multiple scales and from multiple methods to assess the current state of the science in estimating CO2 budgets. Our set of atmospheric inversions and biosphere models, which were adjusted for a consistent flux definition, showed a high level of agreement for global and hemispheric CO2 budgets in the 2000s. Regionally, improved agreement in CO2 budgets was notable for North America and Southeast Asia. However, large gaps between the two methods remained in East Asia and South America. In other regions, Europe, boreal Asia, Africa, South Asia, and Oceania, it was difficult to determine whether those regions act as a net sink or source because of the large spread in estimates from atmospheric inversions. These results highlight two research directions to improve the robustness of CO2 budgets: (a) to increase representation of processes in biosphere models that could contribute to fill the budget gaps, such as forest regrowth and forest degradation; and (b) to reduce sink-source compensation between regions (dipoles) in atmospheric inversion so that their estimates become more comparable. Advancements on both research areas will increase the level of agreement between the top-down and bottom-up approaches and yield more robust knowledge of regional CO2 budgets. |
英文关键词 | atmospheric inversion biosphere model carbon stock change CO2 evasion land-use change emissions net CO2 flux residual land uptake riverine carbon export terrestrial CO2 budget |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000502240300001 |
WOS关键词 | GLOBAL CARBON BUDGET ; LAND-SURFACE MODEL ; DIOXIDE EMISSIONS ; PLANT GEOGRAPHY ; EXCHANGE ; FLUXES ; SINKS ; CYCLE ; INVERSIONS ; FORESTS |
WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/225325 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Chiba Univ, Ctr Environm Remote Sensing, Chiba, Japan; 2.Japan Agcy Marine Earth Sci & Technol, Dept Environm Geochem Cycle Res, Yokohama, Kanagawa, Japan; 3.Univ Exeter, Coll Life & Environm Sci, Exeter, Devon, England; 4.Univ Exeter, Coll Engn Math & Phys Sci, Exeter, Devon, England; 5.NASA, Goddard Space Flight Ctr, Biosphere Sci Lab, Greenbelt, MD USA; 6.Inst Pierre Simon Laplace, Lab Sci Climat & Environm, Gif Sur Yvette, France; 7.CSIRO, Global Carbon Project, Oceans & Atmosphere, Canberra, ACT, Australia; 8.Ludwig Maximilian Univ Munich, Dept Geog, Munich, Germany; 9.Univ Libre Bruxelles, Brussels, Belgium; 10.Univ Montana, WA Franke Coll Forestry & Conservat, Missoula, MT 59812 USA; 11.Natl Inst Environm Studies, Ctr Global Environm Res, Tsukuba, Ibaraki, Japan; 12.Karlsruhe Inst Technol, Atmospher Environm Res, Inst Meteorol & Climate Res, Garmisch Partenkirchen, Germany; 13.CSIRO, Oceans & Atmosphere, Canberra, ACT, Australia; 14.Univ Illinois, Dept Atmospher Sci, 105 S Gregory Ave, Urbana, IL 61801 USA; 15.Inst Appl Energy, Tokyo, Japan; 16.Forest Res Inst Baden Wurttemberg, Dept Forest Hlth, Freiburg, Germany; 17.CSIRO, Oceans & Atmosphere, Aspendale, Vic, Australia; 18.Univ Bern, Inst Phys, Climate & Environm Phys, Bern, Switzerland; 19.Univ Bern, Oeschger Ctr Climate Change Res, Bern, Switzerland; 20.Natl Ctr Atmospher Res, Climate & Global Dynam, POB 3000, Boulder, CO 80307 USA; 21.Meteorol Res Inst, Tsukuba, Ibaraki, Japan; 22.Japan Meteorol Agcy, Tokyo, Japan; 23.Max Planck Inst Biogeochem, Jena, Germany; 24.Cent Aerol Observ, Russian Hydromet Serv, Moscow, Russia; 25.Auburn Univ, Sch Forestry & Wildlife Sci, Int Ctr Climate & Global Change Res, Auburn, AL 36849 USA |
推荐引用方式 GB/T 7714 | Kondo, Masayuki,Patra, Prabir K.,Sitch, Stephen,et al. State of the science in reconciling top-down and bottom-up approaches for terrestrial CO2 budget[J]. GLOBAL CHANGE BIOLOGY,2019. |
APA | Kondo, Masayuki.,Patra, Prabir K..,Sitch, Stephen.,Friedlingstein, Pierre.,Poulter, Benjamin.,...&Ziehn, Tilo.(2019).State of the science in reconciling top-down and bottom-up approaches for terrestrial CO2 budget.GLOBAL CHANGE BIOLOGY. |
MLA | Kondo, Masayuki,et al."State of the science in reconciling top-down and bottom-up approaches for terrestrial CO2 budget".GLOBAL CHANGE BIOLOGY (2019). |
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