Articles | Volume 19, issue 9
Research article
06 May 2022
Research article |  | 06 May 2022

A nitrate budget of the Bohai Sea based on an isotope mass balance model

Shichao Tian, Birgit Gaye, Jianhui Tang, Yongming Luo, Wenguo Li, Niko Lahajnar, Kirstin Dähnke, Tina Sanders, Tianqi Xiong, Weidong Zhai, and Kay-Christian Emeis


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Reconsider after major revisions (16 Sep 2021) by Aninda Mazumdar
AR by Shichao Tian on behalf of the Authors (14 Oct 2021)  Author's response    Author's tracked changes    Manuscript
ED: Referee Nomination & Report Request started (18 Oct 2021) by Aninda Mazumdar
RR by Anonymous Referee #3 (19 Mar 2022)
ED: Publish subject to technical corrections (03 Apr 2022) by Aninda Mazumdar
Short summary
We constrain the nitrogen budget and in particular the internal sources and sinks of nitrate in the Bohai Sea by using a mass-based and dual stable isotope approach based on δ15N and δ18O of nitrate. Based on available mass fluxes and isotope data an updated nitrogen budget is proposed. Compared to previous estimates, it is more complete and includes the impact of the interior cycle (nitrification) on the nitrate pool. The main external nitrogen sources are rivers contributing 19.2 %–25.6 %.
Final-revised paper