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Cited by 379

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Global climate change and soil carbon stocks; predictions from two contrasting models for the turnover of organic carbon in soil

Jones, Chris, McConnell, Claire, Coleman, Kevin, Cox, Peter, Falloon, Peter, Jenkinson, David, Powlson, David·2005·Global Change Biology

Abstract

Enhanced release of CO 2 to the atmosphere from soil organic carbon as a result of increased temperatures may lead to a positive feedback between climate change and the carbon cycle, resulting in much higher CO 2 levels and accelerated global warming. However, the magnitude of this effect is uncertain and critically dependent on how the decomposition of soil organic C (heterotrophic respiration) responds to changes in climate. Previous studies with the Hadley Centre's coupled climate–carbon cycle general circulation model (GCM) (HadCM3LC) used a simple, single‐pool soil carbon model to simulate the response. Here we present results from numerical simulations that use the more sophisticated ‘RothC’ multipool soil carbon model, driven with the same climate data. The results show strong similarities in the behaviour of the two models, although RothC tends to simulate slightly smaller changes in global soil carbon stocks for the same forcing. RothC simulates global soil carbon stocks decreasing by 54 Gt C by 2100 in a climate change simulation compared with an 80 Gt C decrease in HadCM3LC. The multipool carbon dynamics of RothC cause it to exhibit a slower magnitude of transient response to both increased organic carbon inputs and changes in climate. We conclude that the projection of a positive feedback between climate and carbon cycle is robust, but the magnitude of the feedback is dependent on the structure of the soil carbon model.

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Metadata

Authors
Jones, C., McConnell, C., Coleman, K., Cox, P., Falloon, P., Jenkinson, D., & Powlson, D.
Venue
Global Change Biology
Publisher
Wiley
Published
2004-12-02
Volume
11
Issue
1
Pages
154-166
ISSN
  • 1354-1013 (ISSN-L)
  • 1365-2486
OpenAlex
W2132411008
Cited by
379
References
50
FWCI
21.00
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Global climate change and soil carbon stocks; predictions from two contrasting models for the turnover of organic carbon in soil. https://app.cochat.ai/papers/10.1111/j.1365-2486.2004.00885.x
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Jones, C., McConnell, C., Coleman, K., Cox, P., Falloon, P., Jenkinson, D., & Powlson, D. (2005). Global climate change and soil carbon stocks; predictions from two contrasting models for the turnover of organic carbon in soil. Global Change Biology. https://doi.org/10.1111/j.1365-2486.2004.00885.x

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