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Quantifying global soil carbon losses in response to warming

文献类型：期刊论文

作者Crowther, T. W.; Todd-Brown, K. E. O.; Rowe, C. W.; Wieder, W. R.; Carey, J. C.; Machmuller, M. B.; Snoek, B. L.; Fang, S.; Zhou, G.; Allison, S. D.
刊名NATURE
出版日期2016
卷号540期号:7631
ISSN号0028-0836
DOI10.1038/nature20150
文献子类Article
英文摘要The majority of the Earth's terrestrial carbon is stored in the soil. If anthropogenic warming stimulates the loss of this carbon to the atmosphere, it could drive further planetary warming(1-4). Despite evidence that warming enhances carbon fluxes to and from the soil(5,6), the net global balance between these responses remains uncertain. Here we present a comprehensive analysis of warming-induced changes in soil carbon stocks by assembling data from 49 field experiments located across North America, Europe and Asia. We find that the effects of warming are contingent on the size of the initial soil carbon stock, with considerable losses occurring in high-latitude areas. By extrapolating this empirical relationship to the global scale, we provide estimates of soil carbon sensitivity to warming that may help to constrain Earth system model projections. Our empirical relationship suggests that global soil carbon stocks in the upper soil horizons will fall by 30 +/- 30 petagrams of carbon to 203 +/- 161 petagrams of carbon under one degree of warming, depending on the rate at which the effects of warming are realized. Under the conservative assumption that the response of soil carbon to warming occurs within a year, a business-as-usual climate scenario would drive the loss of 55 +/- 50 petagrams of carbon from the upper soil horizons by 2050. This value is around 12-17 per cent of the expected anthropogenic emissions over this period(7,8). Despite the considerable uncertainty in our estimates, the direction of the global soil carbon response is consistent across all scenarios. This provides strong empirical support for the idea that rising temperatures will stimulate the net loss of soil carbon to the atmosphere, driving a positive land carbon-climate feedback that could accelerate climate change.
学科主题Multidisciplinary Sciences
电子版国际标准刊号1476-4687
出版地LONDON
WOS关键词EARTH SYSTEM MODELS ; CLIMATE-CHANGE ; TEMPERATURE SENSITIVITY ; ORGANIC-CARBON ; FEEDBACKS ; TUNDRA ; DECOMPOSITION ; UNCERTAINTY ; PROJECTIONS ; ECOSYSTEMS
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
语种英语
出版者NATURE PUBLISHING GROUP
WOS记录号WOS:000388916600057
资助机构Global Soil Biodiversity Initiative (GSBI) ; Marie Sklodowska-Curie actions ; British Ecological Society ; Yale Climate and Energy Institute ; US National Science FoundationNational Science Foundation (NSF) ; US Department of EnergyUnited States Department of Energy (DOE) ; Linus Pauling Distinguished Postdoctoral Fellowship programme ; Natural Environment Research CouncilUK Research & Innovation (UKRI)Natural Environment Research Council (NERC) [ceh020008] Funding Source: researchfish ; NERCUK Research & Innovation (UKRI)Natural Environment Research Council (NERC) [ceh020008] Funding Source: UKRI ; Direct For Biological SciencesNational Science Foundation (NSF)NSF - Directorate for Biological Sciences (BIO) [1457614] Funding Source: National Science Foundation ; Division Of Environmental BiologyNational Science Foundation (NSF)NSF - Directorate for Biological Sciences (BIO) [1242531, 1120064, 1234162, 1340847] Funding Source: National Science Foundation
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/24478]  
专题植被与环境变化国家重点实验室
作者单位1.[Allison, S. D.
2.[Crowther, T. W.
3.Snoek, B. L.
4.Bradford, M. A.] Netherlands Inst Ecol, Droevendaalsesteeg 10, NL-6708 PB Wageningen, Netherlands
5.Rowe, C. W.
6.Bradford, M. A.] Yale Univ, Yale Sch Forestry & Environm Studies, 370 Prospect St, New Haven, CT 06511 USA
7.[Todd-Brown, K. E. O.
8.Sokol, N. W.] Pacific Northwest Natl Lab, Richland, WA 99354 USA
9.[Wieder, W. R.] Natl Ctr Atmospher Res, Climate & Global Dynam Lab, Boulder, CO 80307 USA
10.[Wieder, W. R.] Univ Colorado, Inst Arctic & Alpine Res, Boulder, CO 80303 USA
推荐引用方式
GB/T 7714		 Crowther, T. W.,Todd-Brown, K. E. O.,Rowe, C. W.,et al. Quantifying global soil carbon losses in response to warming[J]. NATURE,2016,540(7631).
APA Crowther, T. W..,Todd-Brown, K. E. O..,Rowe, C. W..,Wieder, W. R..,Carey, J. C..,...&Bradford, M. A..(2016).Quantifying global soil carbon losses in response to warming.NATURE,540(7631).
MLA Crowther, T. W.,et al."Quantifying global soil carbon losses in response to warming".NATURE 540.7631(2016).

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来源：植物研究所

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