中国海水贝类养殖碳汇核算体系初探

贝类是我国海水养殖量最大的品种,目前年产量已超过1 000万t,同时海水贝类养殖还具有碳汇功能。为了科学核算其碳汇量,在介绍海水贝类养殖碳汇核算及渔业碳汇定义的基础上,初步构建了海水贝类养殖碳汇核算体系。该体系包括直接碳汇和间接碳汇,其中直接碳汇核算相对简单,只需要获取转换系数、质量比重及碳含量3个参数,而间接碳汇以食物链机制为基础,主要由三个部分组成,具体核算过程较为复杂,应该作为下一步海水贝类养殖碳汇核算体系研究的重点。

A Preliminary Research on the Accounting System of Carbon Sink for Marine Culture of Shellfish in China

Shellfish is the largest varieties of marine aquaculture production in China,and the total annual yields are more than 10 million tons at present.Accounting the carbon sinks of marine culture of shellfish become an important problem.Based on the existing research result of accounting and the definition of fisheries carbon sinks,accounting system of carbon sink for marine culture of shellfish was constructed preliminarily.The system includes two parts,direct carbon sinks and indirect carbon sinks,in which the direct carbon sinks is easy to account after obtaining three parameters(conversion factor,the proportion of quality,and carbon content),and the indirect carbon sinks based on the food chain mechanism,includes three parts,the accounting process will be the research priorities in next period for its accounting process is complicated.