Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1088/1748-9326/12/1/014009 |
Hydrological and biogeochemical constraints on terrestrial carbon cycle feedbacks | |
Mystakidis, Stefanos1; Seneviratne, Sonia I.1,2; Gruber, Nicolas3; Davin, Edouard L.1 | |
2017 | |
发表期刊 | ENVIRONMENTAL RESEARCH LETTERS |
ISSN | 1748-9326 |
出版年 | 2017 |
卷号 | 12期号:1 |
文章类型 | Article |
语种 | 英语 |
国家 | Switzerland |
英文摘要 | The feedbacks between climate, atmospheric CO2 concentration and the terrestrial carbon cycle are a major source of uncertainty in future climate projections with Earth systems models. Here, we use observation-based estimates of the interannual variations in evapotranspiration (ET), net biome productivity (NBP), as well as the present-day sensitivity of NBP to climate variations, to constrain globally the terrestrial carbon cycle feedbacks as simulated by models that participated in the fifth phase of the coupled model intercomparison project (CMIP5). The constraints result in a ca. 40% lower response of NBP to climate change and a ca. 30% reduction in the strength of the CO2 fertilization effect relative to the unconstrained multi-model mean. While the unconstrained CMIP5 models suggest an increase in the cumulative terrestrial carbon storage (477 PgC) in response to an idealized scenario of 1%/year atmospheric CO2 increase, the constraints imply a ca. 19% smaller change. Overall, the applied emerging constraint approach offers a possibility to reduce uncertainties in the projections of the terrestrial carbon cycle, which is a key determinant of the future trajectory of atmospheric CO2 concentration and resulting climate change. |
英文关键词 | terrestrial carbon cycle feedbacks CMIP5 models emergent constraints CO2 fertilization evapotranspiration |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000410387700001 |
WOS关键词 | ORGANIC-MATTER DECOMPOSITION ; CLIMATE-CHANGE ; INTERANNUAL VARIABILITY ; EMERGENT CONSTRAINTS ; GLOBAL PRECIPITATION ; SEMIARID ECOSYSTEMS ; SOIL RESPIRATION ; SEASONAL CYCLE ; RECENT TRENDS ; CO2 |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
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/34266 |
专题 | 气候变化 |
作者单位 | 1.Swiss Fed Inst Technol, Inst Atmospher & Climate Sci, Zurich, Switzerland; 2.Swiss Fed Inst Technol, Ctr Climate Syst Modeling, Zurich, Switzerland; 3.ETHZurich, Inst Biogeochem & Pollutant Dynam, Environm Phys, Zurich, Switzerland |
推荐引用方式 GB/T 7714 | Mystakidis, Stefanos,Seneviratne, Sonia I.,Gruber, Nicolas,et al. Hydrological and biogeochemical constraints on terrestrial carbon cycle feedbacks[J]. ENVIRONMENTAL RESEARCH LETTERS,2017,12(1). |
APA | Mystakidis, Stefanos,Seneviratne, Sonia I.,Gruber, Nicolas,&Davin, Edouard L..(2017).Hydrological and biogeochemical constraints on terrestrial carbon cycle feedbacks.ENVIRONMENTAL RESEARCH LETTERS,12(1). |
MLA | Mystakidis, Stefanos,et al."Hydrological and biogeochemical constraints on terrestrial carbon cycle feedbacks".ENVIRONMENTAL RESEARCH LETTERS 12.1(2017). |
条目包含的文件 | 条目无相关文件。 |
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。
修改评论