Articles | Volume 19, issue 9
https://doi.org/10.5194/bg-19-2397-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-19-2397-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
06 May 2022
Research article |
| 06 May 2022
| 06 May 2022
A nitrate budget of the Bohai Sea based on an isotope mass balance model
Shichao Tian
CORRESPONDING AUTHOR
Institute for Geology, Universität Hamburg, 20146 Hamburg,
Germany
Birgit Gaye
Institute for Geology, Universität Hamburg, 20146 Hamburg,
Germany
Jianhui Tang
Yantai Institute of Coastal Zone Research, Chinese Academy of
Sciences, Yantai, China
Yongming Luo
Yantai Institute of Coastal Zone Research, Chinese Academy of
Sciences, Yantai, China
Institute of Soil Science, Chinese Academy of Sciences, Nanjing, China
Wenguo Li
Institute of Oceanography, Universität Hamburg, 20146 Hamburg,
Germany
Niko Lahajnar
Institute for Geology, Universität Hamburg, 20146 Hamburg,
Germany
Kirstin Dähnke
Institute for Coastal Research, Helmholtz-Zentrum Hereon, 21502 Geesthacht,
Germany
Tina Sanders
Institute for Coastal Research, Helmholtz-Zentrum Hereon, 21502 Geesthacht,
Germany
Tianqi Xiong
Institute of Marine Science and Technology, Shandong University,
Qingdao, China
Weidong Zhai
Institute of Marine Science and Technology, Shandong University,
Qingdao, China
Kay-Christian Emeis
Institute for Geology, Universität Hamburg, 20146 Hamburg,
Germany
Institute for Coastal Research, Helmholtz-Zentrum Hereon, 21502 Geesthacht,
Germany
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Cited
13 citations as recorded by crossref.
- Distribution and influencing factors of atmospheric nitrogen oxides (NOx) over the east coast of China in spring: Indication of the sea as a sink of the atmospheric NOx Y. Tian et al. 10.1016/j.marpolbul.2024.116095
- A comprehensive analysis of submarine groundwater discharge and nutrient fluxes in the Bohai Sea, China X. Zhang et al. 10.1016/j.watres.2024.121320
- Key biogeochemical processes and source apportionment of nitrate in the Bohai Sea based on nitrate stable isotopes K. Yu et al. 10.1016/j.marpolbul.2024.116617
- Nitrate transformation and source tracking of rivers draining into the Bohai Sea using a multi-tracer approach combined with an optimized Bayesian stable isotope mixing model X. Ren et al. 10.1016/j.jhazmat.2023.132901
- Nutrient changes in the Bohai Sea over the past two decades W. Liang et al. 10.1016/j.scitotenv.2023.166696
- Sources and transformations of riverine nitrogen across a coastal-plain river network of eastern China: New insights from multiple stable isotopes W. Chen et al. 10.1016/j.scitotenv.2024.171671
- Nitrate δ15N and δ18O Values Reveal Mariculture Impacts on Nitrogen Cycling in Sansha Bay, SE China J. Li et al. 10.3390/jmse13020343
- Quantitative assessment of nitrate sources in Jiaozhou Bay and its terrestrial inflows using nitrate stable isotope techniques H. Feng et al. 10.1016/j.marpolbul.2025.118203
- Nitrogen from agriculture and temperature as the major drivers of deoxygenation in the central Bohai Sea F. Yang et al. 10.1016/j.scitotenv.2023.164614
- Globally distributed marine Gemmatimonadota have unique genomic potentials X. Gong et al. 10.1186/s40168-024-01871-4
- Source apportionment of nitrate in the Pearl River Estuary using δ15N and δ18O values and isotope mixing model R. Long et al. 10.1016/j.marpolbul.2023.114962
- Nitrate budget of a terrestrial-to-marine continuum in South China: Insights from isotopes and a Markov chain Monte Carlo model S. Yang et al. 10.1016/j.marpolbul.2023.116000
- Nitrate Regeneration and Loss in the Central Yellow Sea Bottom Water Revealed by Nitrogen Isotopes S. Tian et al. 10.3389/fmars.2022.834953
12 citations as recorded by crossref.
- Distribution and influencing factors of atmospheric nitrogen oxides (NOx) over the east coast of China in spring: Indication of the sea as a sink of the atmospheric NOx Y. Tian et al. 10.1016/j.marpolbul.2024.116095
- A comprehensive analysis of submarine groundwater discharge and nutrient fluxes in the Bohai Sea, China X. Zhang et al. 10.1016/j.watres.2024.121320
- Key biogeochemical processes and source apportionment of nitrate in the Bohai Sea based on nitrate stable isotopes K. Yu et al. 10.1016/j.marpolbul.2024.116617
- Nitrate transformation and source tracking of rivers draining into the Bohai Sea using a multi-tracer approach combined with an optimized Bayesian stable isotope mixing model X. Ren et al. 10.1016/j.jhazmat.2023.132901
- Nutrient changes in the Bohai Sea over the past two decades W. Liang et al. 10.1016/j.scitotenv.2023.166696
- Sources and transformations of riverine nitrogen across a coastal-plain river network of eastern China: New insights from multiple stable isotopes W. Chen et al. 10.1016/j.scitotenv.2024.171671
- Nitrate δ15N and δ18O Values Reveal Mariculture Impacts on Nitrogen Cycling in Sansha Bay, SE China J. Li et al. 10.3390/jmse13020343
- Quantitative assessment of nitrate sources in Jiaozhou Bay and its terrestrial inflows using nitrate stable isotope techniques H. Feng et al. 10.1016/j.marpolbul.2025.118203
- Nitrogen from agriculture and temperature as the major drivers of deoxygenation in the central Bohai Sea F. Yang et al. 10.1016/j.scitotenv.2023.164614
- Globally distributed marine Gemmatimonadota have unique genomic potentials X. Gong et al. 10.1186/s40168-024-01871-4
- Source apportionment of nitrate in the Pearl River Estuary using δ15N and δ18O values and isotope mixing model R. Long et al. 10.1016/j.marpolbul.2023.114962
- Nitrate budget of a terrestrial-to-marine continuum in South China: Insights from isotopes and a Markov chain Monte Carlo model S. Yang et al. 10.1016/j.marpolbul.2023.116000
1 citations as recorded by crossref.
Latest update: 22 Jul 2025
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 %.
We constrain the nitrogen budget and in particular the internal sources and sinks of nitrate in...
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