基于全生命周期碳排放的海水贝藻养殖碳汇核算——以广东省湛江市为例  

Carbon sink assessment of bivalve and seaweed mariculture based on life-cycle carbon emissions:A case study of Zhanjiang City,Guangdong Province

作　　者：袁雪婷 罗丽娟 曾雪兰 张远 栾天罡 YUAN Xueting;LUO Lijuan;ZENG Xuelan;ZHANG Yuan;LUAN Tiangang(Guangdong Provincial Key Laboratory of Water Quality Improvement and Ecological Restoration for Watersheds/School of Ecology,Environment and Resources,Guangdong University of Technology,Guangzhou 510006,China;Guangdong Provincial Laboratory of Chemistry and Fine Chemical Engineering Jieyang Center,Jieyang 515200,China;Collaborative Innovation Institute for Carbon Neutrality and Green Development,Guangdong University of Technology,Guangzhou 510006,China;State Key Laboratory of Biocontrol/School of Life Sciences,Sun Yat-sen University,Guangzhou 510275,China)

机构地区：[1]广东省流域水环境治理与水生态修复重点实验室/广东工业大学生态环境与资源学院,广东广州510006 [2]化学与精细化工广东省实验室揭阳分中心,广东揭阳515200 [3]广东工业大学碳中和与绿色发展协同创新研究院,广东广州510006 [4]水产动物疫病防控与健康养殖全国重点实验室/中山大学生命科学学院,广东广州510275

出　　处：《中山大学学报（自然科学版）（中英文）》2024年第3期80-87,共8页Acta Scientiarum Naturalium Universitatis Sunyatseni

基　　金：广东省海洋经济发展(海洋六大产业)专项资金项目(粤自然资合[2023]43号);广东省重点领域研发计划项目(2020B1111350003);广东引进创新创业团队项目(2019ZT08L213)。

摘　　要：湛江市的海水养殖面积3.7万hm^(2),是广东省乃至全国重要的水产品生产和加工基地,对其进行海水贝藻养殖碳汇核算,为湛江市未来开展渔业碳汇交易,服务国家碳中和需求提供数据支持具有重要意义。本研究依据实地调查以及实验室分析检测获得湛江市本土贝藻碳汇核算的关键性基础数据,并基于贝藻类全生命周期碳排放,精准评估湛江市海水贝藻养殖碳汇能力。研究结果表明,2021年湛江市海水养殖贝藻碳汇总量(以CO_(2)计)为155436 t,其中贝类155359 t,藻类77 t。按照我国目前蓝碳交易市场中CO_(2)交易价格,湛江市贝类和藻类碳汇创造的经济价值为1648万元。综合贝藻类全生命周期碳排放的方法,湛江市贝类净碳汇为135176 t,藻类为39 t。由此可见,湛江市具有较高的海水贝藻养殖碳汇能力,能带来可观的减排经济效益,为我国实现气候变化的解决方案以及完成“双碳”目标做出重要贡献。Zhanjiang City,with an area of 37000 hm^(2)of mariculture,is an important production and processing base for aquatic products in Guangdong Province and even in the whole country.Conducting carbon sink accounting for mariculture bivalve and seaweed is of great significance,as it will provide data support for Zhanjiang City to conduct fishery carbon sink trading in the future and meet the national carbon neutral demand.Based on the field surveys and laboratory analysis,the key basic data of carbon sink accounting of native bivalve and seaweed in Zhanjiang was obtained in this study.And the carbon sink capacity of mariculture in Zhanjiang based on the whole life cycle carbon emissions of bivalve and seaweed were also evaluated.The results showed that the total carbon sink(measured in CO_(2))of mariculture bivalve and seaweed in Zhanjiang was 155436 t in 2021,with bivalve accounting for 155359 t and seaweed accounting for 77 t.According to the current CO_(2)trading price in China's blue carbon market,the economic value created by the carbon sinks of bivalve and seaweed in Zhanjiang was 16.48 million RMB.Using the comprehensive method of carbon emission in the whole life cycle assessment,the net carbon sink of the bivalve in Zhanjiang City was 135176 t,and the seaweed was 39 t.It is evident that Zhanjiang City has a high carbon sequestration capacity in marine bivalve cultivation,which can bring significant economic benefits through emission reduction,and making an important contribution to China's climate change solutions and achieving the"dual carbon"goals.

关 键 词：蓝碳 碳汇 生命周期评价 双壳贝类 碳足迹 

分 类 号：S937.3[农业科学—渔业资源]