| 摘要: |
| 养殖贝类是最有效的生物固碳方式之一，其碳汇功能作为海洋生态系统功能的一部分，兼具生态和经济属性，碳汇价格的核算可为海水贝类养殖产业补贴提供数据参考，提高碳汇养殖产业的生产积极性，对海洋GEP核算等提供一定借鉴。目前碳汇价格研究较为缺乏，碳汇价格受限于碳汇计量方法的不完善，因此文章基于碳储量变化原理，对养殖环境中的养殖贝类固碳基础公式进行改进，补充了附着贝类固碳与生物沉积物固碳两个计算参数，以此为切入点选取并改进海洋牧场碳汇定价方法，以东方云溪海洋牧场作为研究区进行案例计算，结果为：海湾扇贝、栉孔扇贝与褶牡蛎的碳汇价格分别为165元/t、185元/t和272元/t；使用改进后的碳汇计量方法得到的养殖贝类单位个体固碳量较高，其中生物沉积固碳对提高单位个体固碳量的作用最为突出，约占贝类自身固碳的91%，主要与养殖海域的水文条件有关；较高的固碳量形成了较低的碳汇价格，固碳量与成本收益因素共同影响养殖贝类的碳汇价格；长远来看，碳汇价格会随着固碳计量的愈加完善而降低。 |
| 关键词: 养殖贝类 碳汇计量 碳汇价格 海洋牧场 |
| DOI：10.20016/j.cnki.hykfygl.20220330.007 |
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| 基金项目:国家重点研发计划（2019YFD0901105）. |
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| Study on Carbon Sink Price Accounting of Farmed Shellfish |
| WEN Rui,ZHANG Jiwei,GAO Chao,GAO Yu,YANG Yan |
| The Third Institute of Oceanography, MNR;Southwest Jiaotong University |
| Abstract: |
| Farming shellfish is one of the most effective ways of biological carbon sequestration, whose carbon-sink function was one part of marine ecological system function, with both ecological and economic properties. Carbon price accounting can provide reference data for seawater shellfish aquaculture industry subsidies, increase carbon sink aquaculture industry production enthusiasm, and provide certain reference to marine GEP accounting. However, there is a lack of research on carbon sink prices at present, and carbon sink prices of cultured shellfish are limited by imperfect carbon sink measurement methods. Therefore, based on the principle of carbon storage changes, this paper improved the basic formula for carbon sequestration in farming shellfish aquaculture environment, and two calculation parameters of attached shellfish carbon sequestration and biological deposits were added as a starting point to select and improve the pricing method of carbon sequestration in marine ranch, the selection of the Dongfang Yunxi sea ranch was calculated as a case study, the result was: The carbon sink prices of bay scallop, Chlamys farreri and wrinkled oyster were 165 yuan/t, 185 yuan/t and 272 yuan/t, respectively. The carbon sequestration per unit of cultured shellfish obtained by the improved carbon sink measurement method was relatively high. Among them, the effect of bio-sediment carbon sequestration on increasing the carbon sequestration per unit was the most prominent, accounting for about 91% of the shellfish′s own carbon sequestration. It was related to the hydrological conditions of aquaculture sea areas; higher carbon sequestration results in lower carbon sequestration prices, and carbon sequestration and cost-benefit factors together affected the carbon sequestration price of cultured shellfish. In the long run, carbon sequestration prices will decrease as carbon sequestration metering becomes more perfect. |
| Key words: Cultured shellfish, Carbon sink metering, Carbon sink price,Marine ranch |
