منابع مشابه
Soil warming and carbon-cycle feedbacks to the climate system.
In a decade-long soil warming experiment in a mid-latitude hardwood forest, we documented changes in soil carbon and nitrogen cycling in order to investigate the consequences of these changes for the climate system. Here we show that whereas soil warming accelerates soil organic matter decay and carbon dioxide fluxes to the atmosphere, this response is small and short-lived for a mid-latitude f...
متن کاملPrimary productivity control of simulated carbon cycle–climate feedbacks
[1] Positive feedbacks between the terrestrial carbon cycle and climate represent an outstanding area of uncertainty in simulations of future climate change. Coupled climatecarbon cycle models have simulated widely divergent feedback magnitudes, and attempts to explain model differences have had only limited success. In this study, we demonstrate that the response of vegetation primary producti...
متن کاملCarbon-cycle feedbacks increase the likelihood of a warmer future
[1] Positive carbon-cycle feedbacks have the potential to reduce natural carbon uptake and accelerate future climate change. In this paper, we introduce a novel approach to incorporating carbon-cycle feedbacks into probabilistic assessments of future warming. Using a coupled climatecarbon model, we show that including carbon-cycle feedbacks leads to large increases in extreme warming probabilit...
متن کاملGlacial weathering, sulfide oxidation, and global carbon cycle feedbacks.
Connections between glaciation, chemical weathering, and the global carbon cycle could steer the evolution of global climate over geologic time, but even the directionality of feedbacks in this system remain to be resolved. Here, we assemble a compilation of hydrochemical data from glacierized catchments, use this data to evaluate the dominant chemical reactions associated with glacial weatheri...
متن کاملEvidence for Oceanic Control of Interannual Carbon Cycle Feedbacks
Large-scale carbon-cycle feedbacks within Earth’s climate system can be inferred from the statistical correlation of atmospheric CO2 and other climate observations. These statistical relationships can serve as validation targets for global carbon-cycle models. Fourier-transform coherence between atmospheric CO2 measured at Mauna Loa, Hawaii, and Hadley Centre global-average temperatures changed...
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ژورنال
عنوان ژورنال: Journal of Climate
سال: 2009
ISSN: 1520-0442,0894-8755
DOI: 10.1175/2009jcli2949.1