基于CiteSpace的功能性有机肥研究动态与热点分析

功能性有机肥是推动废弃物资源化利用、化肥减量行动的重要路径，本文采用文献计量学方法系统梳理当前该领域的研究热点及趋势。本文从CNKI、Web of Science核心数据集中检索获取文献，从发文量、作者、机构、关键词、热点等方面进行统计分析。分析结果表明：(1)功能性有机肥研究正处于热点状态，单年发文量国内学者已超过国外学者且影响力优于国外学者。(2)国内沈其荣、刘强等学者团队是研究重要力量，机构以南京农业大学、中国农业大学、中国农科院等农业类的科研机构、高校为主。(3)国内外研究关键词均主要围绕功能性有机肥的研发及施用后功能效益分析方面，同时产生了功能基因、碳、多样性等新的热点词。(4)时间线图谱分析发现国内外均形成了以有机肥、多样性、吸附等主要聚类类型，有机肥、生物炭、腐殖物质、细菌群落、多样性是当前热点。研究认为国内外学者应加大制备材料的功能性、有效性、稳定性研究和施用后的环境效益分析，包括人体健康、环境残留、养分缓释、固碳等方面以推动绿色发展。

Research Trends and Hot Spot Analysis of Functional Organic Fertilizer Based on CiteSpace

Functional organic fertilizer is an important path to promoting the reduction of chemical fertilizer. Due to the lack of systematic literature, there is insufficient understanding of the research progress, hot spots, and trends in this field. This paper adopts CiteSpace 5.8 R1 software, retrieves the literature related to functional organic fertilizer from the CNKI and core data sets of the web of science, and makes statistical and visual analysis from the number of documents, authors, institutions, keywords, and hot spots. The results showed that: ① At present, the research on functional organic fertilizer is in a hot state. The number of papers issued by domestic scholars has exceeded that of foreign scholars in 2021, and the influence of domestic scholars in this field is better than that of foreign scholars. ② Among the domestic scholars and teams, Shen Q. R., Liu Q., Lin, X. G. are important forces in the research of functional organic fertilizer. The institutions are mainly agricultural scientific research institutions and universities, such as Nanjing Agricultural University, Chinese Academy of Sciences, China Agricultural University, Chinese Academy of Agricultural Sciences, etc. On the whole, the amounts of papers issued by foreign scholars are low and scattered, and no obvious research team has been formed. ③ The research keywords at home and abroad mainly focus on the research and development of functional organic fertilizer, and the benefit analysis of the nutrient status, functional diversity change and enzyme activities after the application of organic fertilizer. At the same time, new hot keywords such as functional gene, carbon and diversity analysis have been produced. ④ According to the analysis of timeline mapping, the main clustering types such as organic fertilizer, diversity and adsorption have been formed at home and abroad. Organic fertilizer, biochar, hummus, long-term fertilization observation, bacterial community and diversity are the current hotspots. At the same time, due to the mature application of high-tech means, these hotspots will maintain the research heat for a long time. This paper objectively reveals the research trends, hot spots and trends of functional organic fertilizer, and believes that the research on the functionality, effectiveness and stability of materials in the preparation of functional organic fertilizer should be strengthened at present. At the same time, focus on the environmental benefit analysis after the application of organic fertilizer should include product quality, human health, environmental residue, nutrient slow-release and carbon fixation, in order to better promote green development and ecological revitalization.