| 三沙湾海水养殖固碳潜力评估与空间格局分析 |
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| 引用本文： | 张智,雷灵逸,王飞鹏,李荣茂,李聪,黄亚玲,穆景利.三沙湾海水养殖固碳潜力评估与空间格局分析[J].海洋开发与管理,2024,41(2):28-37. |
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| 作者姓名： | 张智 雷灵逸 王飞鹏 李荣茂 李聪 黄亚玲 穆景利 |
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| 作者单位： | 闽江学院地理与海洋学院 福建省海洋生物多样性保护与永续利用重点实验室;闽江学院地理与海洋学院 福建省海洋生物多样性保护与永续利用重点实验室；福州大学环境与安全工程学院;福建省渔业资源监测中心 |
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| 基金项目： | 福建省海洋经济发展专项资金项目(FJHJF-L-2022-12)；福建省科技计划项目引导性项目（2023N01010293）. |
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| 摘 要： | 文章以福建省典型养殖海湾三沙湾为研究区域，对区域内养殖现状开展调查，并对三沙湾养殖固碳量及价值量进行核算。结果显示，2022年三沙湾养殖总产量66.47万t，其中贝藻养殖产量26.67万t；优势经济物种包括大黄鱼、鲍鱼、海带、江蓠和牡蛎。测定不同养殖生物含碳率存在时空差异，其中养殖生物软组织含碳率为23.67%～43.89%，养殖贝类贝壳含碳率为11.12%～15.05%；海带含碳率随生长周期降低，而贝类含碳率在生长过程无显著差异。经核算，2022年三沙湾海水养殖牡蛎、海带、江蓠等不投饵贝藻类养殖可从水体中移出碳约2.91万t，相当于减排二氧化碳10.67万t，可创造经济价值161.74万元，具有良好的固碳潜力与经济效益。鲍鱼、大黄鱼、海参等投饵型养殖生物在养殖过程中引入外来碳源约92.55万t，饵料的投入和养殖结构不合理是导致投饵型养殖碳固存能力弱的重要因素。文章聚焦典型养殖海湾的渔业固碳能力核算，并针对投饵型养殖生物的碳固存能力进行探讨，研究结果能够为该区域养殖规划和水产养殖行业的绿色升级转型提供科学支持。
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| 关 键 词： | 渔业碳汇 水产养殖 固碳潜力 空间分布格局 三沙湾 |
| 收稿时间： | 2023/7/31 0:00:00 |
| 修稿时间： | 2024/1/8 0:00:00 |
Assessment and Spatial Pattern of Carbon Sequestration Potential of Mariculture in Sansha Bay |
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| ZHANG Zhi,LEI Lingyi,WANG Feipeng,LI Rongmao,LI Cong,HUANG Yaling,MU Jingli.Assessment and Spatial Pattern of Carbon Sequestration Potential of Mariculture in Sansha Bay[J].Ocean Development and Management,2024,41(2):28-37. |
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| Authors: | ZHANG Zhi LEI Lingyi WANG Feipeng LI Rongmao LI Cong HUANG Yaling MU Jingli |
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| Abstract: | This paper selected Sansha Bay which was a typical aquacultural bay in Fujian Province as the research area to investigate the current status of aquaculture, and calculated the amount and values of carbon sequestration contributed by mariculture from Sansha Bay. The results showed that the total aquaculture output of Sansha Bay in 2022 was 664 700 t, including 266 700 t of shellfish and algae. The dominant economic species included large yellow croaker, abalone, kelp, Gracilaria and oyster. The carbon ratio of these main cultured organisms varied spatially and temporally, ranging from 23.67% to 43.89% in tissues and 11.12% to 15.05% in shells. The carbon ratio of kelp decreased with the growth cycle, while the carbon ratio of shells showed no significant difference. In 2022, the mariculture of oysters, kelp, Gracilaria and other filter-feeding shellfish in Sansha Bay could remove carbon about 29 100 t from seawater, equivalent to reducing 106 700 t of CO2. It also created an economic value of 1.62 million yuan, with considerable carbon sequestration capacity and economic benefits. However, abalone, large yellow crock, sea cucumber and other bait-based culture organisms introduced about 925 500 t of extraneous carbon sources in the process of mariculture. Irrational input of bait and culture structure were important factors leading to the weak carbon sequestration ability of bait-based culture. This paper focused on the fishery carbon sink accounting of the typical aquaculture bay, and discussed the carbon sequestration capacity of locally bait-based aquaculture species. It would provide scientific basis for the aquaculture planning and the green upgrading and transformation of the aquaculture industry in this area. |
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