为了解畜禽粪便和碳中和领域的最新热点和发展趋势,通过Web of Science核心合集数据库,以"畜禽粪便和碳中和"为主题进行高级检索,选取1994-2022 年全球学者发表的1 812篇英文文献,利用可视化分析软件VOSviewer、HistCite、CiteSpace等,主要对年发文量、学科分布、期刊分布、研究国家、研究机构、研究作者、研究热点与发展趋势等指标进行计量分析.结果表明:1994-2022 年,国际上畜禽粪便和碳中和领域文献量整体呈上升趋势,其中中国发文量最高且呈现较快发展状态,其次是美国,说明中美两国对该领域研究较为重视.环境学是所涉及的主要学科,占论文总数量的 27.7%.发文量位列前三的学术期刊为Agriculture Ecosystems&Environment、Sci-ence of the Total Environment、Soil&Tillage Research.总联系强度参数位列前三的机构分别为来自中国的中国科学院、中国农业科学院和美国的科罗拉多州立大学.由关键词共线网络发现碳封存是出现次数最高的关键词,说明碳封存是该领域的研究热点.引文分析的关键词突发性检测发现放牧管理、有机碳封存、粪便管理为畜禽粪便和碳中和研究的未来趋势.综上所述,中美两国在畜禽粪便和碳中和领域研究方面位于世界前列,以有机碳封存为主的研究正成为目前主要研究热点.
A bibliometric study of papers in the field of livestock manure and carbon neutrality based on the Web of Science database
In order to understand the latest hotspots and development trends in the field of livestock manure and car-bon neutrality,1 812 English documents published by global scholars from 1994 to 2022 were selected by an advanced search on the theme of"livestock manure and carbon neutrality"in the Web of Science core collection database.Using vis-ual analysis softwares(VOSviewer,HistCite,CiteSpace,etc.),we mainly analyzed the annual number of papers,subject distribution,journal distribution,research coun-tries,research institutions,research authors,research hotspots and development trends.The results showed that from 1994 to 2022,the number of literature in the field of livestock manure and carbon neutrality in the world showed an overall increasing trend.China had the highest number of publications and exhibited a rapid development,followed by the United States,indicating that China and the United States attached more importance to research in this field.Environmental science was the main subject involved in this field,and the number of papers published in environmental science accounted for 27.7%of the total number of papers.The top three academic journals in terms of the number of publications were Agriculture Ecosystems&Environment,Science of the Total Environment and Soil&Tillage Research.The top three institutions in terms of the total link strength were Chinese A-cademy of Sciences,Chinese Academy of Agricultural Sciences and Colorado State University.Carbon sequestration was found to be the keyword with the highest number of occurrences by the keyword collinear network,indicating that carbon se-questration was a research hotspot in this field.The results of keyword burst detection of citation analysis showed that graz-ing management,organic carbon sequestration and manure management were the future trends of livestock manure and car-bon neutralization research.In summary,China and the United States are at the forefront of the world in the research of livestock manure and carbon neutralization,and the research based on organic carbon sequestration is becoming the main research hotspot at present.