Articles | Volume 21, issue 23
https://doi.org/10.5194/bg-21-5435-2024
© Author(s) 2024. 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-21-5435-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
06 Dec 2024
Research article |
| 06 Dec 2024
| 06 Dec 2024
Source-to-sink pathways of dissolved organic carbon in the river–estuary–ocean continuum: a modeling investigation
Jialing Yao
State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai, China
Institute of Coastal Systems - Analysis and Modeling, Helmholtz-Zentrum Hereon, Geesthacht, Germany
Zhi Chen
State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai, China
State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai, China
Institute of Coastal Systems - Analysis and Modeling, Helmholtz-Zentrum Hereon, Geesthacht, Germany
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Ralf Weisse, Inga Dailidienė, Birgit Hünicke, Kimmo Kahma, Kristine Madsen, Anders Omstedt, Kevin Parnell, Tilo Schöne, Tarmo Soomere, Wenyan Zhang, and Eduardo Zorita
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Short summary
The transformation of dissolved organic carbon (DOC) in estuaries is vital for coastal carbon cycling. We studied source-to-sink pathways of DOC in the Changjiang Estuary using a physics–biogeochemistry model. Results showed a transition of DOC from a sink to a source in the plume area during summer, with a transition from terrestrial-dominant to marine-dominant DOC. Terrigenous and marine DOC exports account for about 31 % and 69 %, respectively.
The transformation of dissolved organic carbon (DOC) in estuaries is vital for coastal carbon...
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