Biogeosciences
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Articles | Volume 15, issue 4
Articles | Volume 15, issue 4
https://doi.org/10.5194/bg-15-997-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/bg-15-997-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 15, issue 4
Research article
 | 
20 Feb 2018
Research article |  | 20 Feb 2018

Tidal variability of nutrients in a coastal coral reef system influenced by groundwater

Guizhi Wang, Shuling Wang, Zhangyong Wang, Wenping Jing, Yi Xu, Zhouling Zhang, Ehui Tan, and Minhan Dai

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Short summary
Time-series observations of nutrients and 228Ra, a groundwater discharge tracer, were carried out from spring to neap tide in the Luhuitou fringing reef at Sanya Bay in the South China Sea. Nitrate, phosphate, and silicate in the water column showed greater diurnal variation during the spring tide. Biological processes predominantly controlled the composition of nutrients, but there was less of an impact in the spring tide due to groundwater discharge in this reef system.
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