煤矿甲烷排放遥感监测文献计量可视化分析

A visualized bibliometric analysis on remote sensing monitoring of methane emissions in coal mines

  • 摘要: 煤矿甲烷排放遥感监测已经成为世界各国监测温室气体排放的主要研究内容之一。为系统总结以往研究,分析研究趋势和发现当今研究热点,首先利用Web of Science与中国知网(CNKI)数据库和关键词检索,筛选了2000—2024年煤矿甲烷排放遥感监测领域的国内外文献;然后,采用CiteSpace文献计量工具进行文献计量和可视化分析。结果表明:煤矿甲烷遥感监测领域文献呈显著增长态势,年均增幅达20 %;发文量排名靠前的国家为美国(181篇)和中国(98篇),德国、加拿大等国家紧随其后;美国国家航空航天局(NASA)以66篇发文量居机构首位,中国科学院位列全球第6;研究热点主要集中于卫星遥感监测、甲烷浓度反演、甲烷量化估算以及数据智能处理;国外研究更多聚焦于全球甲烷排放的监测及政策驱动下的技术创新,我国则在煤矿甲烷排放监测和智能化管理方面表现突出;根据文献共被引分析,高分辨率遥感与反演技术的发展显著提升了甲烷排放监测的时空精度,遥感监测精度和效率、数据智能化处理与算法、多平台集成与融合、国际合作和数据共享等为未来研究方向。

     

    Abstract: Remote sensing monitoring of methane emissions in coal mines has become a major field of research in the global efforts to monitor potent greenhouse gas emissions. While existing studies predominantly concentrated on the technological dimensions, this study proposes to review previous stu-dies, analyze major trends and pinpoint the current research priorities for this field of study. We retrieved domestic and international literature on remote sensing monitoring of methane emissions in coal mines since 2000 from Web of Science and China National Knowledge Infrastructure (CNKI) databases via keyword searches. A visualized bibliometric analysis was then conducted using the CiteSpace tool. Results show that research on remote sensing monitoring of methane emissions in coal mines exhibited significant growth, with an average annual increase of 20 %. We identified the evolving trends of leading countries, research institutions, and research domains with top research contributions and proposed intermediary centrality metrics that reflect patterns of international collaboration: The United States (181 articles) and China (98 articles) are the 2 leading countries with the highest contributions of publications, followed by Germany and Canada; The National Aeronautics and Space Administration (NASA) ranks the first among research institutions with 66 publications, while the Chinese Academy of Sciences ranks the fifth globally; Satellite remote sensing, methane concentration retrieval, methane quantification, and intelligent data processing are the current research priorities in this field; International studies focus more on global methane emission monitoring and policy-driven technological innovations while domestic studies excel in monitoring and intelligent management of methane emissions in coal mines; Co-citation analysis revealed that advancements in high-resolution remote sensing and retrieval technologies have significantly enhanced the spatial and temporal precision of methane emission monitoring. This study therefore suggests areas for future research, such as the precision and efficiency of remote sensing monitoring, intelligent data processing and algorithms, multi-platform integration and fusion, and international collaboration and data sharing.

     

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