Biogeosciences
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Articles | Volume 23, issue 17
Articles | Volume 23, issue 17
https://doi.org/10.5194/bg-23-6053-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-23-6053-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 23, issue 17
Research article
 | 
04 Sep 2026
Research article |  | 04 Sep 2026

Seasonal variations and controlling factors of nitrogen fluxes at the sediment-water interface in a semi-enclosed inland sea

Zhaosen Wu, Xinyu Guo, Jie Shi, Xiaokun Ding, Masatoshi Nakakuni, and Kuninao Tada

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Short summary
Using observations and a numerical model from a semi-enclosed coastal sea in Japan, we found that seasonal nitrogen release from sediments cannot be explained by organic matter input alone. Instead, nitrogen cycling is regulated by the interaction of organic matter supply, oxygen conditions, and nutrient concentrations in the overlying water. This framework helps explain differences among coastal seas and may improve predictions of environmental change.
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