2016—2020年广东省海水养殖贝类碳汇能力评估

Assessment of Carbon Sink Capacity of Mariculture Shellfish in Guangdong Province from 2016 to 2020

为了评估广东省海水养殖贝类的碳汇能力,依据《中国渔业统计年鉴》中广东省海水养殖贝类产量,参考组织干质量比例和组织碳含量,对2016—2020年广东省海水养殖贝类的碳汇能力进行物质量和价值量评估。结果表明2016—2020年期间广东省海水养殖贝类碳汇能力整体较稳定,通过贝类移除碳物质年均15.63万t,相当于移除CO_(2)57.35万t,年均创造经济价值0.86~3.43亿美元。广东省贝类碳汇带来的巨大环境效益以及可观的经济效益,有利于加快实现“双碳”目标,同时应进一步关注贝壳的处理。

In order to evaluate the carbon sink capacity of mariculture shellfish in Guangdong Province,based on the output of mariculture shellfish in Guangdong Province in the China Fishery Statistical Yearbook,the quality and value of the carbon sink capacity of mariculture shellfish in Guangdong Province from 2016 to 2020 were evaluated with reference to tissue dry mass ratio and tissue carbon content.The results showed that the carbon sink capacity of mariculture shellfish in Guangdong Province was stable on the whole.The removal of carbon material by shellfish was 156300 tons per year,equivalent to the removal of 573500 tons of CO_(2),and the annual economic value was 86-343 million US dollars.The study shows that the environmental benefits and considerable economic benefits brought by shellfish carbon sink in Guangdong Province are helpful to accelerate the realization of the"double carbon"goal in our country,and we should pay more attention to the treatment of shells at the same time.