Biogeosciences
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Articles | Volume 15, issue 4
Articles | Volume 15, issue 4
https://doi.org/10.5194/bg-15-987-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-15-987-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 15, issue 4
Research article
 | 
20 Feb 2018
Research article |  | 20 Feb 2018

Stable isotopic constraints on global soil organic carbon turnover

Chao Wang, Benjamin Z. Houlton, Dongwei Liu, Jianfeng Hou, Weixin Cheng, and Edith Bai

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Short summary
Soil contains a large amount of organic carbon and plays a crucial role in regulating Earth's C cycle and climate system. In this study, we collected soil-carbon isotope data within a 1 m depth globally and provided an isotope-based approach for understanding soil carbon decomposition rate. Compared with other methods, utilization of C isotope composition ratios in the soil profile provides an independent approach that does not rely on disruption of plant-soil-microbe interactions.
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