南海与周边海域表层塑料颗粒交换的拉格朗日示踪研究
孟钊(1994—), 男, 山东省菏泽市人, 硕士研究生, 主要从事海洋环境和可视化研究。E-mail: |
Copy editor: 殷波
收稿日期: 2019-11-20
要求修回日期: 2020-02-24
网络出版日期: 2020-02-25
基金资助
国家自然科学基金项目(41676021)
广东省实验室重大专项(GML2019ZD0306)
广东省实验室重大专项(GML2019ZD0303)
版权
Exchanges of surface plastic particles in the South China Sea through straits using Lagrangian method
Copy editor: YIN Bo
Received date: 2019-11-20
Request revised date: 2020-02-24
Online published: 2020-02-25
Supported by
National Natural Science Foundation of China(41676021)
Major Project of Guangdong Province Laboratory(GML2019ZD0306)
Major Project of Guangdong Province Laboratory(GML2019ZD0303)
Copyright
孟钊 , 李宁 , 管玉平 , 冯洋 . 南海与周边海域表层塑料颗粒交换的拉格朗日示踪研究[J]. 热带海洋学报, 2020 , 39(5) : 109 -116 . DOI: 10.11978/2019118
Plastics have caused serious pollution in the ocean, and become one of the marine environmental issues of concern to the international marine community. The South China Sea is a major area of marine plastic pollution. The areas around the South China Sea are major sources of plastic pollution, and previous studies have focused on the offshore environment. In this study, we discuss the exchange of plastic particles in the surface of the South China Sea and surrounding waters by ocean circulations. First, the particles were placed at the junction of the South China Sea and its adjacent seas, and were released at the initial time of every season Using Lagrangian particle tracing method, we analyzed the trajectories and final locations of the particles within one year after release. The results show that plastic particles enter the South China Sea mainly through the southern strait. The transport of particles at the same starting point varies a lot with season. During autumn and winter, most particles will enter the South China Sea and Java Sea, and little particles will be transported to the Pacific Ocean. However, only a few particles enter the South China Sea and Java Sea during spring and summer, while most of them are transported to the Pacific Ocean .The South China Sea current is mainly affected by monsoon and has significant seasonal characteristics. This research will help understand the impact of surface plastics around the South China Sea on the plastic pollutant in the South China Sea.
Key words: plastic; circulation; seasonal change; South China Sea
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