Biogeosciences
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Articles | Volume 18, issue 6
Articles | Volume 18, issue 6
https://doi.org/10.5194/bg-18-2063-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-18-2063-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 6
Research article
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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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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.
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