文献类型：期刊文献

中文题名：台风影响下湛江湾生态环境与碳汇效应的研究进展

英文题名：Review on Eco-environment and Carbon Sink Effects of Zhanjiang Bay Under Typhoon Influence

作者：陈法锦[1];劳齐斌[1];周欣[2];王超[1];黄超[1];陆旋[3];陈淳青[1];蔡尚均[1];刘思海[1]

机构：[1]广东海洋大学海洋与气象学院,广东湛江524088;[2]广东海洋大学化学与环境学院,广东湛江524088;[3]集美大学极地与海洋研究院,福建厦门361021

年份：2025

卷号：45

期号：5

起止页码：74

中文期刊名：广东海洋大学学报

外文期刊名：Journal of Guangdong Ocean University

收录：北大核心2023、、北大核心

基金：国家自然科学基金面上项目(42276047);广东省基础与应用基础研究基金(2024A1515110183)。

语种：中文

中文关键词：台风;营养盐;有机物;氮循环;碳埋藏

外文关键词：typhoon;nutrients;organic matter;nitrogen cycle;carbon burial

中文摘要：【目的】台风作为强动力天气过程,能显著影响海洋生态环境和碳汇格局。然而,基于卫星遥感和现场实测的研究,存在两种不同的观点:前者普遍观测到台风后藻华现象,认为台风增强海洋碳汇;而后者则发现有机物降解常为主导过程,指示近海可能成为碳源。结合文献分析,厘清台风对湛江湾生态环境和碳汇效应的具体影响。【方法】以我国台风登陆频率较高的湛江湾为研究区域,基于超过10次台风现场航次观测数据,系统综述台风对其水动力过程和生态环境的影响。【结果】台风路径是调控湛江湾水动力与营养盐输运的关键,左侧登陆台风驱动向岸流形成强锋面,滞留营养盐并加剧湾内富营养化风险,对河口湾内水产养殖的影响显著;右侧登陆台风促进水体与营养盐向湾外输出。在生物地球化学层面,台风触发的强烈降解作用主要表现为对颗粒有机物的降解过程,沉积物碳埋藏效率约5%,远低于一般河口及近岸区域10%~15%的水平。同时,台风通过增强硝化—反硝化作用,提升氮移除效率及温室气体氧化亚氮排放通量。【结论】虽然台风在短期内可能刺激初级生产,但其所引发的强烈降解过程总体削弱了河口湾的碳汇潜力。

外文摘要：【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.