Managing uncertainty in soil carbon feedbacks to climate change

被引：0
作者：
Bradford M.A. [1 ,2 ]
Wieder W.R. [3 ,4 ]
Bonan G.B. [3 ]
Fierer N. [5 ,6 ]
Raymond P.A. [1 ]
Crowther T.W. [1 ,2 ]
机构：
[1] School of Forestry and Environmental Studies, Yale University, New Haven, 06511, CT
[2] Department of Terrestrial Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Wageningen
[3] Climate and Global Dynamics Laboratory, National Center for Atmospheric Research, Boulder, 80307, CO
[4] Institute for Arctic and Alpine Research, University of Colorado, Boulder, 80309, CO
[5] Department of Ecology and Evolutionary Biology, University of Colorado, Boulder, 80309, CO
[6] Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, 80309, CO
来源：
Nature Climate Change | 2016年 / 6卷 / 8期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1038/nclimate3071
中图分类号：
学科分类号：
摘要：
Planetary warming may be exacerbated if it accelerates loss of soil carbon to the atmosphere. This carbon-cycle-climate feedback is included in climate projections. Yet, despite ancillary data supporting a positive feedback, there is limited evidence for soil carbon loss under warming. The low confidence engendered in feedback projections is reduced further by the common representation in models of an outdated knowledge of soil carbon turnover. 'Model-knowledge integration'-representing in models an advanced understanding of soil carbon stabilization-is the first step to build confidence. This will inform experiments that further increase confidence by resolving competing mechanisms that most influence projected soil-carbon stocks. Improving feedback projections is an imperative for establishing greenhouse gas emission targets that limit climate change. © 2016 Macmillan Publishers Limited.
引用
收藏
页码：751 / 758
页数：7
相关论文
共 101 条
[1]  
Conant R.T., Et al., Temperature and soil organic matter decomposition rates - Synthesis of current knowledge and a way forward, Glob. Change Biol, 17, pp. 3392-3404, (2011)
[2]  
Lu M., Et al., Responses of ecosystem carbon cycle to experimental warming: A meta-Analysis, Ecology, 94, pp. 726-738, (2013)
[3]  
Dorrepaal E., Et al., Carbon respiration from subsurface peat accelerated by climate warming in the subarctic, Nature, 460, pp. 616-619, (2013)
[4]  
Frey S.D., Lee J., Melillo J.M., Six J., The temperature response of soil microbial efficiency and its feedback to climate, Nature Clim. Change, 3, pp. 395-398, (2013)
[5]  
Karhu K., Et al., Temperature sensitivity of soil respiration rates enhanced by microbial community response, Nature, 513, pp. 81-84, (2014)
[6]  
Melillo J.M., Et al., Soil warming, carbon-nitrogen interactions, and forest carbon budgets, Proc. Natl Acad. Sci. USA, 108, pp. 9508-9512, (2011)
[7]  
Zhou J., Et al., Microbial mediation of carbon-cycle feedbacks to climate warming, Nature Clim. Change, 2, pp. 106-110, (2012)
[8]  
Friedlingstein P., Et al., Uncertainties in CMIP5 climate projections due to carbon cycle feedbacks, J Clim, 27, pp. 511-526, (2014)
[9]  
Arora V.K., Et al., Carbon-concentration and carbon-climate feedbacks in CMIP5 Earth System Models, J Clim, 26, pp. 5289-5314, (2013)
[10]  
Jones C., Et al., Twenty first century compatible CO2 emissions and airborne fraction simulated by CMIP5 Earth system models under four representative concentration pathways, J Clim, 26, pp. 4398-4413, (2013)
12345678910