Articles | Volume 16, issue 24
Biogeosciences, 16, 4875–4888, 2019
https://doi.org/10.5194/bg-16-4875-2019
Biogeosciences, 16, 4875–4888, 2019
https://doi.org/10.5194/bg-16-4875-2019

Research article 20 Dec 2019

Research article | 20 Dec 2019

Metabolic tradeoffs and heterogeneity in microbial responses to temperature determine the fate of litter carbon in simulations of a warmer world

Grace Pold et al.

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Cited articles

Allison, S.: A trait-based approach for modelling microbial litter decomposition, Ecol. Lett., 15, 1058–1070, 2012. a, b, c, d, e
Allison, S. D.: Modeling adaptation of carbon use efficiency in microbial communities, Front. Microbiol., 5, 1–9, 2014. a, b, c, d, e, f, g, h, i, j
Allison, S. D. and Goulden, M. L.: Consequences of drought tolerance traits for microbial decomposition in the DEMENT model, Soil Biol. Biochem., 107, 104–113, 2017. a, b
Allison, S. D., Wallenstein, M. D., and Bradford, M. A.: Soil-carbon response to warming dependent on microbial physiology, Nat. Geosci., 3, 336–340, 2010. a, b, c, d
Allison, S. D., Lu, L., Kent, A. G., and Martiny, A. C.: Extracellular enzyme production and cheating in Pseudomonas fluorescens depend on diffusion rates, Front. Microbiol., 5, 169, https://doi.org/10.3389/fmicb.2014.00169, 2014. a
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The litter decomposition model DEMENT was run under ambient temperatures and with 5 °C; of warming. We found that the loss of litter carbon to the atmosphere as CO2 was exacerbated by warming when the microbes in the model differed in their temperature responses, compared to when all microbes responded identically to warming. Our results therefore indicate that predicted changes in litter carbon stocks are sensitive to heterogeneity in key parameters of soil decomposer physiology.
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