Role of phosphorus in the seasonal deoxygenation of the East China Sea shelf

Laurent, Arnaud; Zhang, Haiyan; Fennel, Katja

doi:https://doi.org/10.5194/bg-19-5893-2022

Articles | Volume 19, issue 24

https://doi.org/10.5194/bg-19-5893-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/bg-19-5893-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 19, issue 24

Research article

|

21 Dec 2022

Research article |

| 21 Dec 2022

Role of phosphorus in the seasonal deoxygenation of the East China Sea shelf

Arnaud Laurent, Haiyan Zhang, and Katja Fennel

Supplement

https://doi.org/10.5194/bg-19-5893-2022-supplement

Model code and software

Ocean forecasting in terrain-following coordinates: Formulation and skill assessment of the Regional Ocean Modeling System (http://myroms.org) D. B. Haidvogel, H. Arango, W. P. Budgell, B. D. Cornuelle, E. Curchitser, E. Di Lorenzo, K. Fennel, W. R. Geyer, A. J. Hermann, L. Lanerolle, J. Levin, J. C. McWilliams, A. J. Miller, A. M. Moore, T. M. Powell, A. F. Shchepetkin, C. R. Sherwood, R. P. Signell, J. C. Warner, and J. Wilkin https://doi.org/10.1016/j.jcp.2007.06.016

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Short summary

The Changjiang is the main terrestrial source of nutrients to the East China Sea (ECS). Nutrient delivery to the ECS has been increasing since the 1960s, resulting in low oxygen (hypoxia) during phytoplankton decomposition in summer. River phosphorus (P) has increased less than nitrogen, and therefore, despite the large nutrient delivery, phytoplankton growth can be limited by the lack of P. Here, we investigate this link between P limitation, phytoplankton production/decomposition, and hypoxia.