| Issue |
E3S Web Conf.
Volume 630, 2025
2025 International Conference on Eco-environmental Protection, Environmental Monitoring and Remediation (EPEMR 2025)
|
|
|---|---|---|
| Article Number | 02014 | |
| Number of page(s) | 5 | |
| Section | Ecosystem Resilience and Sustainable Futures under Climate Change | |
| DOI | https://doi.org/10.1051/e3sconf/202563002014 | |
| Published online | 22 May 2025 | |
Distribution characteristics and seasonal variation of nutrients in Rushan inshore waters
1 Shandong Provincial Key Laboratory of Marine Ecology and Environment & Disaster Prevention and Mitigation, Qingdao Shandong, 266061, China
2 North China Sea Marine Forecasting and Hazard Mitigation Center of Ministry of Natural Resources, Qingdao, Shandong, 266061, China
* Corresponding author: 36302162@qq.com
Based on the marine environmental investigation data conducted in Rushan inshore waters in February, May, August and October 2018, the distribution characteristics and seasonal variation of nutrients were analyzed, and the eutrophication status of seawater was evaluated. The results showed that the concentrations of DIN, PO4-P and SiO3-Si were in the order of spring > winter > autumn > summer, and the distribution characteristics of DIN, PO4-P and SiO3-Si in the 4 seasons were generally high in nearshore sea areas and low in offshore sea areas. The concentrations of DIN in some station exceeded the Class Ⅱ standard in the “Sea Water Quality Standard”, while the PO4-P of each station comply with the Class Ⅱ standard. In spring, one station experienced eutrophication, while in the other seasons, there was no eutrophication observed. Correlation analysis showed that there was a significant positive correlation between petroleum and PO4-P in winter, spring and autumn. A significant positive correlation between suspended matter and DIN, PO4-P in spring, and a significant positive correlation between petroleum and DIN in autumn.
© The Authors, published by EDP Sciences, 2025
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.