What question did this study set out to answer?

To identify the internal mechanisms within the global climate system that drive natural, centennial-scale fluctuations in the global carbon cycle.

April 9, 2013Journal of Advances in Modeling Earth SystemsOpen Access

Land contribution to natural CO₂ variability on time scales of centuries

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To identify the internal mechanisms within the global climate system that drive natural, centennial-scale fluctuations in the global carbon cycle.
Analyzed preindustrial control simulations from the Max Planck Institute Earth System Model in low resolution (MPI-ESM-LR) within CMIP5.
Performed supplementary Earth system model simulations to evaluate the regional and physiological drivers of land carbon storage variations.
Low-frequency terrestrial carbon fluctuations produced atmospheric carbon dioxide variations of up to 3 ppm on centennial timescales.
Global net primary production variations served as the primary driver, triggered by climate-induced shifts in leaf area index and photosynthetic carbon assimilation.
Soil respiration linked to low-frequency shifts in surface incoming shortwave radiation provided an additional major control on carbon storage changes in North America.

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Implication

Climate modeling reveals centennial atmospheric carbon dioxide swings of up to 3 ppm driven by terrestrial net primary production, highlighting natural land biosphere controls on carbon variability.

Cite This Study

Schneck et al. (2013) studied this question.

synapsesocial.com/papers/6a703945e36a167817e1fa5a https://doi.org/10.1002/jame.20029

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Implication

Climate modeling reveals centennial atmospheric carbon dioxide swings of up to 3 ppm driven by terrestrial net primary production, highlighting natural land biosphere controls on carbon variability.

Land contribution to natural CO₂ variability on time scales of centuries

Key Points

Discussion

Implication

Cite This Study

Land contribution to natural CO₂ variability on time scales of centuries

Key Points

Discussion

Implication

Cite This Study

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