摘要
发挥红树林、海草床等典型蓝碳生态系统的碳汇功能是缓解全球气候变化自然的解决方案之一.广东省蓝碳资源丰富,厘清典型蓝碳生态系统碳汇研究进展对生态系统的保护修复与政策制定具有重要的科学意义.文章以中国知网(Chinese National Knowledge Infrastructure,CNKI)总库的文献为主要数据来源,应用CiteSpace文献计量学方法对近20年发表的 94篇关于广东省蓝碳生态系统碳汇相关的中英文文献从研究现状、发展趋势等方面进行分析,探讨该领域的研究热点及未来研究方向.基于对文章作者、研究机构、关键词等可视化分析的结果,显示广东省蓝碳生态系统碳汇的研究大致可以分为3个阶段:起步阶段(2003-2011 年)、缓慢发展阶段(2012-2016 年)和快速发展阶段(2017-2023 年).关键词共现图谱和聚类图谱分析结果表明,已有研究主要集中在碳储量、红树林、海洋碳汇、海草床、生物量等方面,未来的研究热点将仍然以碳达峰碳中和为目标导向,建议未来要加强广东省红树林、海草床等典型蓝碳生态系统碳汇的监测和核算方法研究及典型蓝碳生态系统增汇技术的研发,构建典型蓝碳生态系统的负碳技术体系,实现蓝碳生态系统的保护修复与固碳增汇协同增效,推动实现碳达峰碳中和目标.
Abstract
The implementation of the carbon sequestration function of carbon sinks from typical blue carbon ecosystems(BCEs),such as mangroves and seagrass beds,is one of the natural solutions to mitigate global climate change.Guangdong Province has abundant blue carbon sink resources;a scientific finding on the research progress on carbon sinks in typical BCEs is of great significance for ecosystem protecting and restoring and policy making.In this study,literatures from the Chinese National Knowledge Infrastructure(CNKI)database on carbon sinks related to BECs in Guangdong Province published in the past 20 years were analyzed by using the CiteSpace bibliometrics method from the aspects of research status and development trend,to explore the research hotspots and future research trends in this field.The visualization analysis of article authors,research institutions,keywords,etc.,showed that the research development on carbon sinks in BCEs in Guangdong Province can be preliminary divided into three stages:the initial stage(2003-2011),the slow development stage(2012-2016)and the rapid development stage(2017-2023).The results of keyword co-occurrence map and cluster map analysis showed that the relevant researches were mainly focused on carbon storage,mangroves,marine carbon sinks,seagrass beds,biomass,etc,respectively,and the future research hotspots would still be oriented to carbon neutrality and carbon peaking.The study proposed that in the future,researches should be emphasized on the monitoring and accounting methods and the sink-enhancing technologies for carbon sinks in typical BCEs including mangrove forests and seagrass beds in Guangdong Province,and on the construction of a carbon-negative technology system for typical BCEs as well,which will contribute to realizing the synergy between the protection and restoration of BCEs and the enhancement of carbon sequestration and carbon sinks,and will finally achieve carbon neutrality and carbon peak.
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