Topographic controls on soil organic carbon partitioning and enzyme dynamics in nutrient-poor soils
This study identifies a critical slope threshold (30°-45°) for DOC loss: DOC availability on steeper slopes stimulates microbial synthesis of SPPO and SPOD, enhancing recalcitrant carbon degradation and potentially intensifying long-term SOC depletion. The identification of this threshold provides insights for designing microbiome-informed strategies to mitigate soil degradation and safeguard ecological security.
Authors
- Luge Rong
- Shuo Min (ORCID: https://orcid.org/0009-0001-5600-6263)
- Yu Cheng (ORCID: https://orcid.org/0000-0002-4883-3007)
- Qingsong Zhang (ORCID: https://orcid.org/0000-0003-3612-0023)
- Fuyou Xiao
- Ziwei Yang
- Mingmin Wang
- Yifei Liu
- Xuehao Zheng
Institutions
- University of Science and Technology Liaoning (CN)
- China West Normal University (CN)
Publication Details
- Journal
- Frontiers in Microbiology
- Published
- 2026-01-13
- DOI
- https://doi.org/10.3389/fmicb.2025.1735665
- Primary Topic
- Soil Carbon and Nitrogen Dynamics
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China
- China West Normal University