Articles | Volume 8, issue 2
https://doi.org/10.5194/soil-8-673-2022
https://doi.org/10.5194/soil-8-673-2022
Original research article
 | 
26 Oct 2022
Original research article |  | 26 Oct 2022

Effects of a warmer climate and forest composition on soil carbon cycling, soil organic matter stability and stocks in a humid boreal region

David Paré, Jérôme Laganière, Guy R. Larocque, and Robert Boutin

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Cited articles

Abrams, M., Crippen, R., and Fujisada, H.: ASTER global digital elevation model (GDEM) and ASTER global water body dataset (ASTWBD), Remote Sens., 12, 1156, https://doi.org/10.3390/rs12071156, 2020. 
Andrieux, B., Beguin, J., Bergeron, Y., Grondin, P., and Paré, D.: Drivers of post-fire soil organic carbon accumulation in the boreal forest, Glob. Change Biol., 24, 4797–4815, https://doi.org/10.1111/gcb.14365, 2018. 
Andrieux, B., Paré, D., Beguin, J., Grondin, P., and Bergeron, Y.: Boreal-forest soil chemistry drives soil organic carbon bioreactivity along a 314-year fire chronosequence, SOIL, 6, 195–213, https://doi.org/10.5194/soil-6-195-2020, 2020, 2020. 
Bergeron, O., Margolis, H. A., Black, T. A., Coursolle, C., Dunn, A. L., Barr, A. G., and Wofsy, S. C.: Comparison of carbon dioxide fluxes over three boreal black spruce forests in Canada, Glob. Change Biol., 13, 89–107, https://doi.org/10.1111/j.1365-2486.2006.01281.x, 2007. 
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, 2004. 
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Short summary
Major soil carbon pools and fluxes were assessed along a climatic gradient expanding 4 °C in mean annual temperature for two important boreal conifer forest stand types. Species and a warmer climate affected soil organic matter (SOM) cycling but not stocks. Contrarily to common hypotheses, SOM lability was not reduced by warmer climatic conditions and perhaps increased. Results apply to cold and wet conditions and a stable vegetation composition along the climate gradient.