广东海洋大学学报2025，Vol.45Issue(5)：74-82,9.DOI:10.3969/j.issn.1673-9159.2025.05.010
台风影响下湛江湾生态环境与碳汇效应的研究进展
Review on Eco-environment and Carbon Sink Effects of Zhanjiang Bay Under Typhoon Influence
摘要
Abstract
[Objective]As intense dynamic weather events,typhoons can drastically alter carbon cycling and eco-environment patterns by modifying hydrodynamic and biogeochemical processes in the ocean.However,existing studies present notable contradictions that satellite remote sensing commonly observes algal blooms following typhoons,suggesting an enhancement of the ocean carbon sink,whereas in-situ observations indicate that organic matter degradation dominates regardless of algal bloom occurrence,implying that typhoon-affected coastal areas may act as carbon sources.[Methods]To address this controversy,this study systematically reviews the influence of typhoons on hydrodynamic processes and the ecological environment in Zhanjiang Bay,a region with high typhoon frequency in China,based on in-situ cruise observations from over 10 typhoon events.[Results]The review reveals that typhoon track is a key factor regulating hydrodynamics and nutrient transport in Zhanjiang Bay.Typhoons making landfall on the left side of the bay drive onshore currents,forming intense frontal zones that trap nutrients and exacerbate eutrophication risks within the bay,thereby significantly impacting local aquaculture.In contrast,typhoons making landfall on the right side of the bay enhance the export of water and nutrients out of the bay.For the marine biogeochemical impacts,typhoons stimulate intense degradation processes that primarily target particulate organic matter,significantly reducing sediment carbon burial efficiency(by approximately 5%),which is far lower than the 10%to 15%level in general estuaries and near-shore areas.Simultaneously,typhoons enhance nitrogen removal efficiency and nitrous oxide emission fluxes by intensifying nitrification-denitrification processes.[Conclusion]This study concludes that although typhoons may stimulate short-term primary production,the associated intense degradation processes collectively undermine the carbon sink capacity of the bay.关键词
台风/营养盐/有机物/氮循环/碳埋藏Key words
typhoon/nutrients/organic matter/nitrogen cycle/carbon burial分类
海洋科学引用本文复制引用
陈法锦,劳齐斌,周欣,王超,黄超,陆旋,陈淳青,蔡尚均,刘思海..台风影响下湛江湾生态环境与碳汇效应的研究进展[J].广东海洋大学学报,2025,45(5):74-82,9.基金项目
国家自然科学基金面上项目(42276047) （42276047）
广东省基础与应用基础研究基金(2024A1515110183) （2024A1515110183）
