Nine years of warming and nitrogen addition in the Tibetan grassland promoted loss of soil organic carbon but did not alter the bulk change in chemical structure

Sun, Huimin; Schmidt, Michael W. I.; Li, Jintao; Li, Jinquan; Liu, Xiang; Ofiti, Nicholas O. E.; Zhou, Shurong; Nie, Ming

doi:https://doi.org/10.5194/bg-21-575-2024

Articles | Volume 21, issue 2

https://doi.org/10.5194/bg-21-575-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/bg-21-575-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 21, issue 2

Research article

|

26 Jan 2024

Research article |

| 26 Jan 2024

Nine years of warming and nitrogen addition in the Tibetan grassland promoted loss of soil organic carbon but did not alter the bulk change in chemical structure

Huimin Sun, Michael W. I. Schmidt, Jintao Li, Jinquan Li, Xiang Liu, Nicholas O. E. Ofiti, Shurong Zhou, and Ming Nie

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https://doi.org/10.5194/bg-21-575-2024-supplement

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Nine years of warming and nitrogen addition in the Tibetan grassland promoted loss of soil organic carbon but did not alter the bulk change of chemical structure Huimin Sun et al. https://doi.org/10.5281/zenodo.8289311

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A soil organic carbon (SOC) molecular structure suggested that the easily decomposable and stabilized SOC is similarly affected after 9-year warming and N treatments despite large changes in SOC stocks. Given the long residence time of some SOC, the similar loss of all measurable chemical forms of SOC under global change treatments could have important climate consequences.