Articles | Volume 19, issue 24
https://doi.org/10.5194/bg-19-5893-2022
https://doi.org/10.5194/bg-19-5893-2022
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

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Cited articles

Alexander, R. B., Smith, R. A., Schwarz, G. E., Boyer, E. W., Nolan, J. V., and Brakebill, J. W.: Differences in Phosphorus and Nitrogen Delivery to The Gulf of Mexico from the Mississippi River Basin, Environ. Sci. Technol., 42, 822–830, https://doi.org/10.1021/es0716103, 2008. 
Bai, Y., He, X., Pan, D., Chen, C.-T. A., Kang, Y., Chen, X., and Cai, W.-J.: Summertime Changjiang River plume variation during 1998–2010, J. Geophys. Res.-Ocean., 119, 6238–6257, https://doi.org/10.1002/2014JC009866, 2014. 
Beusen, A. H. W., Bouwman, A. F., Van Beek, L. P. H., Mogollón, J. M., and Middelburg, J. J.: Global riverine N and P transport to ocean increased during the 20th century despite increased retention along the aquatic continuum, Biogeosciences, 13, 2441–2451, https://doi.org/10.5194/bg-13-2441-2016, 2016. 
Bian, C., Jiang, W., and Greatbatch, R. J.: An exploratory model study of sediment transport sources and deposits in the Bohai Sea, Yellow Sea, and East China Sea, J. Geophys. Res.-Ocean., 118, 5908–5923, https://doi.org/10.1002/2013JC009116, 2013. 
Boesch, D. F.: Barriers and Bridges in Abating Coastal Eutrophication, Front. Mar. Sci., 6, 123, https://doi.org/10.3389/fmars.2019.00123, 2019. 
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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.
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