全球城市矿产研究的热点与前沿趋势:基于CiteSpace软件的可视化分析

Hotspots and frontier trends of urban mining research in global:visual analysis based on CiteSpace software

为明确城市矿产领域的研究热点与前沿趋势,采用知识图谱可视化和文献计量的方法,运用Web of Science文献数据和CiteSpace软件定量分析全球城市矿产研究的发文时间、期刊、作者、研究机构,以及高被引文献等特征,从关键词共现、关键词聚类、突现词提取和时区图谱分析,揭示城市矿产研究热点和前沿趋势。研究结果表明:全球城市矿产研究年度发文量总体呈不断上升的趋势;形成了以陈伟强、刘刚、GRAEDEL等学者为核心的作者群和以中国科学院、清华大学、耶鲁大学为核心的研究机构群,合作紧密;“城市矿产”“在用存量”“物质流分析”“循环经济”等关键词频繁出现且中心性高,反映出资源存量研究、循环经济理念和经济可行性研究是当前的核心主题;未来城市矿产研究将在资源回收技术的创新与优化、动态监测与数据分析、循环经济模式的系统性研究,以及政策与社会因素的综合研究等议题发力。本文的研究能够帮助科研工作者和决策者快速了解和掌握城市矿产领域的研究状况和趋势方向,为推进城市矿产的深入研究和科学决策提供重要参考。

To clarify the research hotspots and frontier trends in the field of urban mining,this paper uses knowledge graph visualization and bibliometric methods,and employs Web of Science literature data and CiteSpace software to quantitatively analyze the characteristics of publication time,journals,authors,research institutions,and highly cited literature of urban mining research in global.Through keyword co-occurrence,keyword clustering,extraction of emergent words,and time zone graph analysis,it reveals the research hotspots and frontier trends of urban mining research.The research results show that the annual number of publications of urban mining research in global generally shows an increasing trend.An author group centered on scholars such as CHEN Weiqiang,LIU Gang,and GRAEDEL,et al.and a research institution group centered on the Chinese Academy of Sciences,Tsinghua University,and Yale University have been formed,with close cooperation.Keywords such as“urban mining”“in-use stocks”“material flow analysis”,and“circular economy”frequently appear and have high centrality,reflecting that resource stock research,circular economy concepts,and economic feasibility research are the current core themes.Future urban mining research will focus on issues such as innovation and optimization of resource recycling technologies,dynamic monitoring and data analysis,systematic research on circular economy models,and comprehensive research on policy and social factors.The research in this paper can help scientific researchers and decision-makers quickly understand and master the research status and trend direction in the field of urban mining,and provide important reference value for promoting in-depth research and scientific decision-making on urban mining.