| 引用本文： |
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李敏,吴文锋,李娟,王鹏皓,赵振宇.滨海湿地蓝碳面临的渔业活动潜在压力评估——以东海区盐沼与水产养殖区为例[J].广西科学,2026,33(2):401-410. [点击复制]
- LI Min,WU Wenfeng,LI Juan,WANG Penghao,ZHAO Zhenyu.Assessment of Potential Pressure from Fishery Activities on Coastal Wetland Blue Carbon: a Case Study of Salt Marshes and Aquaculture Areas in the East China Sea[J].Guangxi Sciences,2026,33(2):401-410. [点击复制]
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| 摘要: |
| 为评估机动渔船碳排放对滨海湿地蓝碳的潜在压力，本研究以东海区盐沼和水产养殖区为对象，基于多源空间数据构建研究区盐沼与水产养殖区分布底图，估算其碳储量与年固碳量，并以2024年台州籍海洋捕捞渔船为案例，融合自动识别系统(Automatic Identification System，AIS)、北斗、岸基AIS等多源轨迹数据核算渔船碳排放，结合空间叠置、缓冲区分析和二维胁迫指数(Stress Index，SI)识别高压力冲突区域。结果表明：(1)研究区盐沼总面积237.61 km2，水产养殖区总面积1 082.74 km2,二者土壤碳储量总计2.71 Tg C，年固碳量总计0.16 Tg C/a；(2)台州籍渔船碳排放空间格局呈“近岸港口热点—外海生产性排放带”双重结构，拖网船是最主要的排放来源；(3)碳排放热点与盐沼、水产养殖区存在显著的空间重叠，其中与盐沼、水产养殖区的重叠面积分别为42.63、111.14 km2；(4)基于“排放强度-碳密度”二维SI评估，台州湾及三门湾沿岸盐沼为高压力区，台州湾水产养殖区为中—高压力区。研究表明，台州籍渔船活动对研究区滨海湿地蓝碳构成显著空间潜在压力，台州湾及三门湾沿岸是优先管控的关键区域。 |
| 关键词: 滨海湿地 蓝碳 盐沼 水产养殖区 渔船碳排放 东海区 潜在压力评估 |
| DOI：10.13656/j.cnki.gxkx.20260603.018 |
| 投稿时间：2026-02-15修订日期：2026-03-12 |
| 基金项目:“十四五”第二批研究生省级教学改革工程教育专项(JGGC2024024)资助。 |
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| Assessment of Potential Pressure from Fishery Activities on Coastal Wetland Blue Carbon: a Case Study of Salt Marshes and Aquaculture Areas in the East China Sea |
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LI Min1, WU Wenfeng1,2, LI Juan3, WANG Penghao1, ZHAO Zhenyu1
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| (1.School of Naval Architecture and Maritime, Zhejiang Ocean University, Zhoushan, Zhejiang, 316022, China;2.Collaborative Innovation Center of Clean Energy Technology and Equipment for Vessels, Zhoushan, Zhejiang, 316022, China;3.Hainan Jingying Environmental Engineering Co., Ltd., Haikou, Hainan, 570312, China) |
| Abstract: |
| To assess the potential pressure of carbon emissions from motor fishing vessels registered in Taizhou on coastal wetland blue carbon,this study focused on salt marshes and aquaculture areas in the East China Sea.A base map of salt marsh and aquaculture area distribution in the study area was established with multi-source spatial data,and the carbon storage and annual carbon sequestration of salt marshes and aquaculture areas were estimated.Taking marine fishing vessels registered in Taizhou in 2024 as a case,this study calculated carbon emissions from fishing vessels by integrating trajectory data from multiples sources including Automatic Identification System (AIS),Beidou,and shore-based AIS.High-pressure conflict zones were identified through spatial overlay,buffer analysis,and a two-dimensional Stress Index (SI).The results are summarized as follows:(1) The salt marshes and aquaculture areas in the study area covered the areas of 237.61 km2 and 1 082.74 km2,respectively.The combined soil carbon storage of salt marshes and aquaculture areas was 2.71 Tg C,with the total annual carbon sequestration of 0.16 Tg C/a;(2) The spatial pattern of carbon emissions from Taizhou-registered fishing vessels presented a dual structure of nearshore port hotspots and offshore productive emission belts,with trawlers as the dominant emission source;(3) Significant spatial overlaps existed between carbon emission hotspots and salt marshes as well as aquaculture areas,with overlapping areas of 42.63 km2 and 111.14 km2,respectively;(4) According to the two-dimensional SI based on emission intensity and carbon density,salt marshes along Taizhou Bay and Sanmen Bay were high pressure zones,and aquaculture areas in Taizhou Bay were medium—high pressure zones.This study demonstrates that fishing vessel activities in Taizhou exert significant spatial potential pressure on coastal wetland blue carbon in the study area,and coastal zones of Taizhou Bay and Sanmen Bay are key regions for priority management and control. |
| Key words: coastal wetland blue carbon salt marsh aquaculture area fishing vessel carbon emissions East China Sea potential pressure assessment |
