秸秆生物炭在环境治理和资源循环利用中发挥着重要作用，为了解秸秆生物炭的发展历程，明确该领域的研究重点和前沿方向，通过利用文献计量学CiteSpace可视化软件，对Web of Science(WOS)核心合集数据库检索获得的数据进行文献计量和知识图谱分析。结果显示:秸秆生物炭的年发文量呈上升趋势，中国的发文量位居榜首，总量达3141篇;在全球研究机构中，中国科学院、农业农村部和土壤科学研究所是秸秆生物炭研究的代表性机构;该领域的研究成果主要发表在Science of the Total Environment和Bioresource Technology等高影响因子期刊，中国的王海龙是发文量最多的学者;研究热点及方向主要包括:秸秆生物炭的原料和制备条件、秸秆生物炭在固碳减排、改良土壤和污染修复上的应用以及机制。总体而言，秸秆生物炭是农业废弃物资源化利用的热点主题，今后秸秆生物炭的改性制备、对减缓气候变化和修复环境污染的机制与长期效应研究仍然是研究热点与趋势。
Research Trend Analysis of Straw Biochar Based on Bibliometric
Straw biochar plays an important role in environmental governance and resource recycling.In order to grasp the development process of straw biochar and clarify the focus and preface direction of this research field,this article uses CiteSpace visualization software to conduct bibliometric and knowledge graph analysis on the data retrieved from the Web of Science(WOS)core collection database.The results show that the annual publication volume is on the rise,with China ranking first with a total of 3141 articles;among the global research institutions,Chinese Academy of Sciences,Ministry of Agriculture and Rural Affairs and Institute of Soil Science are representative institutions for straw biochar research;the research results in this field are mainly published in high impact factor journals such as Science of the Total Environment and Bioresource Technology,Wang Hailong from China is the scholar with the highest number of publications;the research hotspots and directions mainly include the raw materials and preparation conditions of straw biochar,the application and mechanisms of straw biochar in carbon sequestration and emission reduction,soil improvement,and pollution remediation.Overall,straw biochar is a hot topic in the resource utilization of agricultural waste.In the future,the modification and preparation of straw biochar,as well as the mechanism and long-term effects of mitigating climate change and repairing environmental pollution,will be the research hotspot and trend.
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