广西林业科学2026，Vol.55Issue(3)：297-308,12.DOI:10.19692/j.issn.1006-1126.20260309
基于文献计量的生物炭对土壤氮素影响研究进展与热点分析
Analysis on Research Advances and Hotspots of Effects of Biochar on Soil Nitrogen Based on Bibliometric
摘要
Abstract
In order to systematically understand research advances of effects of biochar on soil nitrogen,taking 426 relevent articles collected from China National Knowledge Infrastructure(CNKI)database and 2 391 relev-ent articles collected from Web of Science(WOS)core collection database from 2015 to 2024 as research ob-jects,CiteSpace 6.4.R1 and VOSviewer softwares were used to conduct visual analysis from perspectives of pub-lication trends,major research forces as well as cooccurrence,clustering and burst detection of key words.Re-sults showed that annual number of publications in two databases steadily increased,while number of publica-tions and growth rate in WOS database were higher than those in CNKI database.Number of publications of China was 1 369,far exceeding that of other countries.Research clusters centered around institutes such as Chi-nese Academy of Sciences and Northwest A&F University have formed.Authors with abundant publications in WOS database included Chang,Scott X,Riaz,Muhammad and Wang,Hailong,while Ren Tianbao,Liu Guos-hun,He Lili and Cai Kunzheng were prolific authors in CNKI database.Overall domestic and international col-laboration networks remained relatively loose,and stable and long term core teams of leading authors with prom-inent influences have not yet established.High-frequency key words mainly included"nitrogen""carbon""soil nutrients"and"yield".Latest research hotspots focused on directions related to greenhouse gas emission reduc-tion,such as"N ₂ O emissions"and"volatilization".Research hotspots have evolved through distinct phases,shifting from initial studies on biochar preparation and physicochemical properties towards studies on regula-tion of soil microorganisms and enzyme activities.Recently,aligned with"dual carbon"goals,research has con-centrated on nitrogen reduction and sustainable agricultural applications,forming a complete research frame-work encompassing"preparation regulation-soil improvement-nitrogen cycling-crop response-technical sup-port".Future research in this field should prioritize strengthening collaborative efforts among research groups and ensuring research continuity.Further exploration was required to reveal mechanisms of biochar in soil im-provement and remediation,vegetation growth promotion and greenhouse gas emission regulation.关键词
生物炭/氮/文献计量分析/研究热点/知识图谱Key words
biochar/nitrogen/bibliometric analysis/research hotspot/knowledge mapping分类
农业科技引用本文复制引用
张艳华..基于文献计量的生物炭对土壤氮素影响研究进展与热点分析[J].广西林业科学,2026,55(3):297-308,12.基金项目
国家重点研发计划项目(2022YFC3802605) （2022YFC3802605）
