Articles | Volume 21, issue 2
https://doi.org/10.5194/bg-21-657-2024
https://doi.org/10.5194/bg-21-657-2024
Research article
 | 
02 Feb 2024
Research article |  | 02 Feb 2024

Spatial biases reduce the ability of Earth system models to simulate soil heterotrophic respiration fluxes

Bertrand Guenet, Jérémie Orliac, Lauric Cécillon, Olivier Torres, Laura Sereni, Philip A. Martin, Pierre Barré, and Laurent Bopp

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Cited articles

Bond-Lamberty, B. and Thomson, A.: A global database of soil respiration data, Biogeosciences, 7, 1915–1926, https://doi.org/10.5194/bg-7-1915-2010, 2010. 
Bond-Lamberty, B., Wang, C., and Gower, S. T.: A global relationship between the heterotrophic and autotrophic components of soil respiration?, Glob. Change Biol., 10, 1756–1766, https://doi.org/10.1111/j.1365-2486.2004.00816.x, 2004. 
Bragazza, L., Parisod, J., Buttler, A., and Bardgett, R. D.: Biogeochemical plant–soil microbe feedback in response to climate warming in peatlands, Nat. Clim. Change, 3, 273–277, https://doi.org/10.1038/nclimate1781, 2013. 
Chabbi, A., Lehmann, J., Ciais, P., Loescher, H. W., Cotrufo, M. F., Don, A., SanClements, M., Schipper, L., Six, J., Smith, P., and Rumpel, C.: Aligning agriculture and climate policy, Nat. Clim. Change, 7, 307–309, https://doi.org/10.1038/nclimate3286, 2017. 
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Short summary
Heterotrophic respiration fluxes are a major flux between surfaces and the atmosphere, but Earth system models do not yet represent them correctly. Here we benchmarked Earth system models against observation-based products, and we identified the important mechanisms that need to be improved in the next-generation Earth system models.
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