Articles | Volume 23, issue 4
https://doi.org/10.5194/bg-23-1609-2026
© Author(s) 2026. 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-23-1609-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
02 Mar 2026
Research article |
| 02 Mar 2026
| 02 Mar 2026
Role of phosphorus concentration and the nitrogen to phosphate ratio in the synergistic stimulation of alkaline phosphatase activity in Laizhou Bay, China, coastal waters
Yanqun Yang
Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education/Innovation Center for Ocean Carbon Neutrality, Ocean University of China, Qingdao 266100, China
College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China
National Marine Environmental Monitoring Center, State Oceanic Administration, Dalian 116023, China
Xiaomeng Duan
Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education/Innovation Center for Ocean Carbon Neutrality, Ocean University of China, Qingdao 266100, China
College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China
Shengkang Liang
CORRESPONDING AUTHOR
Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education/Innovation Center for Ocean Carbon Neutrality, Ocean University of China, Qingdao 266100, China
College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China
Mingzheng Zhang
Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education/Innovation Center for Ocean Carbon Neutrality, Ocean University of China, Qingdao 266100, China
College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China
Marine Science Research Institute of Shandong Province, Qingdao 266100, China
Shanshan Li
Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education/Innovation Center for Ocean Carbon Neutrality, Ocean University of China, Qingdao 266100, China
College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China
Hongguan Li
Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education/Innovation Center for Ocean Carbon Neutrality, Ocean University of China, Qingdao 266100, China
College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China
Guoling Zhang
Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education/Innovation Center for Ocean Carbon Neutrality, Ocean University of China, Qingdao 266100, China
College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China
Haoyang Ma
Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education/Innovation Center for Ocean Carbon Neutrality, Ocean University of China, Qingdao 266100, China
College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China
Xiurong Han
Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education/Innovation Center for Ocean Carbon Neutrality, Ocean University of China, Qingdao 266100, China
College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China
Xiulin Wang
Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education/Innovation Center for Ocean Carbon Neutrality, Ocean University of China, Qingdao 266100, China
College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China
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EGUsphere, https://doi.org/10.5194/egusphere-2025-1976, https://doi.org/10.5194/egusphere-2025-1976, 2025
Preprint archived
Short summary
Short summary
Long-term preservation of organic carbon in marine sediments is a key process to buffer atmospheric carbon dioxide. Surface sediments from an East China Sea shelf transect were analyzed combining multiple approaches. Data shows that sedimentary organic carbon (SOC) distributions were controlled by primary production, currents and sediment type. Multi-proxies were consistent in indicating SOC sources. SOC degradation degree and burial rate increased and decreased seaward, respectively.
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Short summary
Coastal bays face nitrogen increases while phosphorus stays scarce. At <0.05 μmol/L phosphorus, marine microbes boost alkaline phosphatase production. The nitrogen : phosphorus ratio further enhances this when phosphorus is limited. Our research reveals how nutrient imbalances favor phosphorus-adapted organisms, reshaping ecosystems. Better nutrient management is needed to protect coastal waters.
Coastal bays face nitrogen increases while phosphorus stays scarce. At <0.05 μmol/L phosphorus,...
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