Articles | Volume 18, issue 6
Research article
 | Highlight paper
22 Mar 2021
Research article | Highlight paper |  | 22 Mar 2021

Similar importance of edaphic and climatic factors for controlling soil organic carbon stocks of the world

Zhongkui Luo, Raphael A. Viscarra-Rossel, and Tian Qian

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Cited articles

Batjes, N. H.: Harmonized soil property values for broad-scale modelling (WISE30sec) with estimates of global soil carbon stocks, Geoderma, 269, 61–68, 2016. 
Batjes, N. H., Ribeiro, E., van Oostrum, A., Leenaars, J., Hengl, T., and Mendes de Jesus, J.: WoSIS: providing standardised soil profile data for the world, Earth Syst. Sci. Data, 9, 1–14,, 2017. 
Bernard, L., Chapuis-Lardy, L., Razafimbelo, T., Razafindrakoto, M., Pablo, A. L., Legname, E., Poulain, J., Bruls, T., O'Donohue, M., Brauman, A., Chotte, J. L., and Blanchart, E.: Endogeic earthworms shape bacterial functional communities and affect organic matter mineralization in a tropical soil, ISME J., 6, 213–222, 2012. 
Bishop, T., McBratney, A., and Laslett, G.: Modelling soil attribute depth functions with equal-area quadratic smoothing splines, Geoderma, 91, 27–45, 1999. 
Bradford, M. A., Wieder, W. R., Bonan, G. B., Fierer, N., Raymond, P. A., and Crowther, T. W.: Managing uncertainty in soil carbon feedbacks to climate change, Nat. Clim. Change, 6, 751–758, 2016. 
Short summary
Using the data from 141 584 whole-soil profiles across the globe, we disentangled the relative importance of biotic, climatic and edaphic variables in controlling global SOC stocks. The results suggested that soil properties and climate contributed similarly to the explained global variance of SOC in four sequential soil layers down to 2 m. However, the most important individual controls are consistently soil-related, challenging current climate-driven framework of SOC dynamics.
Final-revised paper