基于文献计量的土地利用变化与碳汇评估交叉研究进展

在"碳中和"的背景下,土地利用变化与碳汇评估的结合日趋紧密,受到了景观生态学、人文地理学等多个学科的关注,二者的交叉研究已成为当下研究热点。对土地利用变化和碳汇评估进行研究,对于实现碳中和、碳达峰具有重要意义。以2003-2023年Web of Science 的核心数据集3556篇英文文献和中国知网CNKI数据库363篇中文文献为研究对象,采用CiteSpace软件制作科学知识图谱,梳理了土地利用变化和碳汇评估交叉研究的概况、研究领域及方向和发展脉络及趋势。研究发现,近20年来土地利用变化和碳汇评估交叉研究的刊文量呈逐年增长趋势,根据关键词聚类情况可将文献主要分为三类议题:1)土地利用类型碳汇评估;2)生态系统服务碳汇评估;3)土壤和植被碳汇评估。其中,土地利用类型碳汇评估是土地利用变化和碳汇交叉研究的重点。研究热点从碳汇评估方法研究逐渐向气候变化及土地利用变化下的碳汇预测模拟转变。在研究方法上,遥感数据分析方法得到不断改进,同时人工智能和机器学习方法也逐渐开始为更多学者采用。在未来的研究中,应发挥学科交叉的优势,完善该领域的研究深度和广度,加强综合性的碳汇评估研究,强化对政策的响应并提出合理的国土空间规划建议,为早日实现碳达峰、碳中和目标提供科学依据和参考。

Research Progress of Land Use Change and Carbon Sink Assessment Based on Bibliometrics

Under the background of "carbon neutrality", the combination of land use change and carbon sink assessment is getting closer and closer. This combination has been paid attention to by a variety of disciplines, including landscape ecology, human geography, and others, and the cross-study of the two has become a popular research topic in the present day. In order to achieve carbon neutrality and carbon peaking, it is essential to conduct research on land use change and carbon sink assessment. In this paper, we took the core dataset of Web of Science with 3556 English papers and CNKI database with 363 Chinese articles from 2003 to 2023 as the research object, CiteSpace software was utilized in order to create scientific knowledge mapping. The purpose of this article is to reviewed the general situation, as well as research areas and directions, development trend of the combination of land use change and carbon sink assessment. According to the findings of the study, the number of publications in the cross-study of land use change and carbon sink assessment has been increasing year by year over the course of the past twenty years. In accordance with the keyword clustering, the body of existing literature could be divided into three major areas: 1) land use type carbon sink assessment; 2) ecosystem service carbon sink assessment; and 3) soil and vegetation carbon sink assessment. Among them, carbon sink assessment of land use type was the focus of cross-research at the intersection of land use change and carbon sink. The focus of the research has gradually shifted from the study of carbon sink assessment methods to the simulation of carbon sink prediction under climate change and land use change. In terms of research methods, the methods of data analysis for remote sensing have been continuously improved, while the methodologies of artificial intelligence and machine learning have gradually begun to be adopted by an increasing number of scholars. The advantages of interdisciplinary research should be fully utilized in the research that will be conducted in the future. Additionally, the depth and breadth of research in this field should be improved, the comprehensive carbon sink assessment studies should be strengthened, the response to policies should be improved, and recommendations for rational territorial spatial planning should be proposed. Achieving the goals of carbon peaking and carbon neutrality as soon as possible requires a scientific basis and reference, which can be provided by this paper.