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Articles | Volume 11, issue 2
Articles | Volume 11, issue 2
https://doi.org/10.5194/soil-11-1095-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/soil-11-1095-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 11, issue 2
Original research article
 | 
15 Dec 2025
Original research article |  | 15 Dec 2025

Long-term pig manure application increases SOC through aggregate protection and Fe-C associations in a subtropical red soil (Udic Ferralsols)

Hui Rong, Zhangliu Du, Weida Gao, Lixiao Ma, Xinhua Peng, Yuji Jiang, Demin Yan, and Hu Zhou

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Short summary
How can carbon be stored in red soils? Our 18-yr manure application reveals that applying manure stabilizes soil carbon through two key mechanisms: it helps soil particles clump together, physically shielding the carbon, and it improves soil conditions to promote minerals that act like glue, binding the carbon chemically. This research provides a sustainable strategy for enhancing soil fertility and mitigating climate change.
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