基于文献计量的滨海湿地碳收支研究进展分析

Research analysis of carbon budgets in coastal wetlands based on bibliometrics

中国在第七十五届联合国大会上承诺,争取在2060年实现碳中和。蓝碳潜力巨大,能助力实现碳中和。滨海湿地碳汇占全球海洋碳汇的50%,是蓝碳的重要组成部分,因此,碳中和目标下的滨海湿地碳收支研究尤其值得关注。本文基于文献计量方法,在Web of Science核心合集数据库获取1979-2020年滨海湿地碳收支领域的相关文献,结合VOSviewer可视化软件定量分析了该领域研究进展。结果表明:(1)1979-2020年滨海湿地碳收支领域发文数量与被引频次均呈上升趋势,尤以2011年后增加最多;(2)涉及的学科主要有环境科学、海洋淡水生物学、生态学等,主要发文期刊有《Estuarine Coastal and Shelf Science》《Marine Ecology Progress Series》《Science of the Total Environment》等;(3)开展研究的国家以亚洲、南北美洲和欧洲国家居多,其中美国发文量居世界首位;(4)研究热点包括温室气体排放、气候变化与碳库、碳循环过程等。随着我国生态文明建设加快,海洋碳汇已被纳入国家战略,其中气候变化和碳中和背景下滨海湿地蓝碳的增汇机制将是未来研究的热点。本文基于1979-2020年的文献分析,建议加强滨海湿地蓝碳的通量及影响因素、蓝碳估算以及应对气候变化的固碳增汇技术方面的研究与探索。

China promised to achieve carbon neutralization by 2060 at the 75th UN General Assembly.Blue carbon has great potential which can implement carbon neutralization.Blue carbon of coastal wetlands accounts for 50%of the global marine carbon sink,which is an important part of blue carbon.Carbon budget in coastal wetlands under carbon neutralization target is attracting more attention in many fields.This paper used bibliometric analysis based on relevant papers focusing on carbon budget of coastal wetlands during 1979-2020 from Web of Science core database.The paper analyzed the research progress in this field quantitatively by VOSviewer visualization software.Results showed that:①The numbers of published papers and citations in the field of carbon budget of coastal wetlands kept rising during 1979-2020,especially with a fast growth since 2011;②The main research fields were environmental science,marine freshwater biology and ecology,and major journals included Estuarine Coastal and Shelf Science,Marine Ecology Progress Series and Science of the Total Environment;③The publications were mainly contributed by countries from Asia,America and Europe,and the United States ranked first in the world;④Hot topics covered greenhouse gas emissions,climate change and carbon pools,carbon cycle processes and so on.As China's ecological civilization accelerates,marine carbon sinks have been incorporated into national strategies,in which the mechanism of blue carbon sequestration in coastal wetlands with climate change will attract more attention.Based on paper analysis during 1979-2020,it suggested that we should strengthen the study on blue carbon flux and influencing factors,coastal wetlands blue carbon estimation,the related carbon sequestration and sequestration technology to deal with climate change in the future.