Articles | Volume 23, issue 1
https://doi.org/10.5194/bg-23-39-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-23-39-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
05 Jan 2026
Research article |
| 05 Jan 2026
| 05 Jan 2026
Vegetation-mediated surface soil organic carbon formation and potential carbon loss risks in Dongting Lake floodplain, China
Liyan Wang
Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
National Field Scientific Observation and Research Station of Dongting Lake Wetland Ecosystem in Hunan Province, Changsha 410125, China
University of Chinese Academy of Sciences, Beijing 100049, China
Zhengmiao Deng
CORRESPONDING AUTHOR
Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
National Field Scientific Observation and Research Station of Dongting Lake Wetland Ecosystem in Hunan Province, Changsha 410125, China
Yonghong Xie
CORRESPONDING AUTHOR
Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
National Field Scientific Observation and Research Station of Dongting Lake Wetland Ecosystem in Hunan Province, Changsha 410125, China
Tao Wang
Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
National Field Scientific Observation and Research Station of Dongting Lake Wetland Ecosystem in Hunan Province, Changsha 410125, China
Feng Li
Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
National Field Scientific Observation and Research Station of Dongting Lake Wetland Ecosystem in Hunan Province, Changsha 410125, China
Ye'ai Zou
Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
National Field Scientific Observation and Research Station of Dongting Lake Wetland Ecosystem in Hunan Province, Changsha 410125, China
Buqing Wang
Changsha General Survey of Natural Resources Center, China Geological Survey, Changsha 410600, China
Zhitao Huo
Changsha General Survey of Natural Resources Center, China Geological Survey, Changsha 410600, China
Cicheng Zhang
College of Geographic Science, Hunan Normal University, Changsha 410081, China
Changhui Peng
Department of Biological Sciences, the University of Québec at Montreal, Montreal, QC H3C 3P8, Canada
Andrew Macrae
Centro de Ciências da Saúde (CCS), Universidade Federal do Rio de Janeiro, Rio de Janeiro, BR 21941902, Brazil
Data sets
SOC Liyan Wang et al. https://doi.org/10.6084/m9.figshare.30781895
Short summary
We employed stable isotope and ¹³C nuclear magnetic resonance spectroscopy analyses to characterize soil organic carbon sources and stability in Dongting Lake wetlands. Our results revealed vegetation elevated soil organic carbon (Miscanthus: 13.76; Carex: 12.98 g kg-1 > mudflat: 6.88 g kg-1), with plant-derived carbon dominating (47.5–53.3 %). Miscanthus exhibited lower soil organic carbon stability (high O-alkyl C), suggesting a higher risk of organic carbon loss in its floodplain ecosystems.
We employed stable isotope and ¹³C nuclear magnetic resonance spectroscopy analyses to...
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