基于Web of Science引文数据库的土壤磷有效性分析

Analysis of Soil Phosphorus Availability Based on Web of Science Citation Database

为深入了解国内土壤磷素有效性研究进展与发展趋势,以Web of Science核心合集数据库中2082篇土壤磷素有效性的文献为数据源,借助R bibilometrix、CiteSpace、VOSviewer和Histcite分别以发文数量、总/平均被引频次、中心性等为指标,对土壤磷有效性领域的发文现状、研究力量、研究热点和主题演变进行了分类与可视化展示。结果表明:土壤磷有效性领域发文数量总体呈上升趋势,主要发文期刊有Plant and Soil、Soil Biology&Biochemistry、Geoderma;从国家研究实力上看,中国、美国及澳大利亚总发文量位居前3位,中国发文量远超其他国家,占比29.97%;目前研究机构以中国科学院发文数量最多,达303篇;从战略坐标图和关键词分析可知有效性为该领域研究的核心主题,“酶活性”、“微生物群落”、“磷限制”“氮沉积”、“可溶性有机碳”等主题词是该领域2018—2022年来研究的热点内容。在环境因子变化背景下,土壤磷有效性与微生物群落、酶活性、碳氮互作研究是当前土壤磷有效性研究的前沿领域,微生物群落、酶及养分间互作与多学科交叉主题将成为未来的研究重点。

The paper aims to understand the research progress and development trend of soil phosphorus availability in China.Based on 2082 literature on soil phosphorus availability in the core collection database of Web of Science,and with the tools of R bibliometrix,CiteSpace,VOSviewer,and Histcite,we used the number of publications,total/average citation frequency and centrality as indicators,to classify and visualize published papers,research strength,research hotspots and subject evolution in the field of soil phosphorus availability research.The results show that the number of publications in the field of soil phosphorus availability is on the rise as a whole,with prominent journals including Plant and Soil,Soil Biology&Biochemistry,and Geoderma.From the perspective of national research strength,China,the United States and Australia are the top three in the total number of published papers.China has published far more papers in this field than other countries,accounting for 29.97%.Up to now,the Chinese Academy of Sciences has published 303 papers,and the number is the most among research institutions.From the analysis of strategic coordinate charts and keywords,we can see that the availability is the core subject of this field.Keywords such as“enzyme activity”,“microbial community”,“phosphorus limitation”,“nitrogen deposition”and“soluble organic carbon”became hotspots in this field from 2018 to 2022.Under the background of environmental factor change,the interaction between soil phosphorus availability and microbial community,enzyme activity,and soil carbon and nitrogen are the forefront of current research, and the interaction among microbial communities, enzymes and nutrients, andinterdisciplinary topics will become the focus of future research.