|
| Cite this article： |
-
CAO Nuotong,LI Qingsheng,JIANG Jinlong.Analysis of Nitrogen and Phosphorus Spatiotemporal Variations and Their Influencing Factors in Sansha Bay[J].Ocean Development and Management,2024,41(9):79-88
|
|
| |
|
|
| This article has been：Browse 810 times Download 860 times |
码上扫一扫！ |
| 三沙湾氮磷时空变化及其影响因素分析 |
| 曹诺彤,李青生,蒋金龙 |
|
|
| 自然资源部第三海洋研究所; 自然资源部海洋生态保护与修复重点实验室;福建省海洋生态保护与修复重点实验室 |
|
| 摘要: |
| 文章基于2020年春季、夏季和秋季三沙湾海域氮磷等环境因子的调查数据，分析了氮磷营养盐的时空变化特征，应用富营养化指数法对该海湾的富营养化水平进行了评价，对氮磷的影响因素进行了分析并提出了污染控制建议。结果显示：三沙湾海域春季和秋季的氮磷浓度较高，夏季浓度较低；各季节DIN和DIP空间分布有所不同；春季和秋季，三沙湾的DIN含量要高于大部分海湾，夏季则要低于大部分海湾，各季节的DIP的含量要高于其他大部分海湾。三沙湾海域富营养化水平为重度富营养状态，其中秋季富营养化程度最严重，春季次之，夏季富营养化水平最低。氮磷影响因素分析表明：春季和夏季，陆源污染是DIN的主要来源，DIP则受到陆源污染、网箱养殖、藻类等海洋生物对营养盐的吸收等综合影响。秋季时，DIN和DIP受到陆源污染、网箱养殖的综合影响。最后提出了污染控制的相关建议，以期为三沙湾污染治理和环境保护提供参考。 |
| 关键词: 氮磷 时空变化 富营养化 影响因素 三沙湾 海洋环境科学 |
| DOI：10.20016/j.cnki.hykfygl.2024.09.014 |
| Received:March 10, 2024Revised:September 09, 2024 |
| 基金项目:福建省生态环境厅资助科技项目（\[3500\] HMY\[CS\]2020003、2021R021、2024R015）. |
|
| Analysis of Nitrogen and Phosphorus Spatiotemporal Variations and Their Influencing Factors in Sansha Bay |
| CAO Nuotong,LI Qingsheng,JIANG Jinlong |
| Third Institute of Oceanography, MNR;Third Institute of Oceanography, MNR; Key Laboratory of Marine Ecological Conservation and Restoration, MNR; Fujian Provincial Key Laboratory of Marine Ecological Conservation and Restoration |
| Abstract: |
| Based on the investigation data of environmental factors in Sansha Bay in spring, summer and autumn of 2020, the spatiotemporal variation of environmental factors were analyzed, and the eutrophication level was evaluated based on eutrophication index method. Then the influencing factors of nitrogen and phosphorus were analyzed and pollution control suggestions were put forward. The results showed that nitrogen and phosphorus concentrations were higher in spring and autumn, but lower in summer. The spatial variation of DIN and DIP were different in different seasons. In spring and autumn, the content of DIN in Sansha Bay is higher than that in most other bays, while in summer it is lower than that in most other bays. The content of DIP in three season is higher than that in most other bays. The eutrophication level in Sansha Bay is severe eutrophication level, in which the eutrophication level is the highest in autumn, the second in spring, and the lowest in summer. The analysis of influencing factors of nitrogen and phosphorus showed that in spring and summer, land-based pollution was the main source of DIN, while DIP was influenced by land-based pollution, cage culture, and nutrient absorption by algae. In autumn, DIN and DIP were affected by a combination of land-based pollution and cage culture. In the end, we put forward some suggestions on pollution control, in order to provide reference for pollution control and environmental protection in Sansha Bay. |
| Key words: Nutrients, Spatiotemporal variation,Eutrophication,Influencing factors,Sansha Bay,Marine environmental science |
|
|
|
|
|
