灌丛化会改变草本植物的分布格局，影响生态系统结构和功能。为了解"灌丛化"相关领域的发展现状、研究热点及前沿趋势，理清该领域研究的知识结构。本研究依托中国知网数据库(CNKI)及Web of Science(WOS)核心合集数据库，以1982～2023年"灌丛化"相关领域已发表的4114篇文献为数据源，利用VOSviewer和CiteSpace可视化软件对"灌丛化"相关研究领域发文情况(数量、趋势、被引频次)、合作关系(团队、机构、国家)和关键词等进行可视化分析。结果显示:(1)国内国际相关研究总体呈稳步增长趋势，外文研究的热度大于中文研究，且高被引论文均发表在国内外影响力较高的期刊上，表明"灌丛化"相关研究成果在该领域认可度较高，具有较高学术价值;(2)"灌丛化"相关研究国际合作关系(团队、机构、国家)较国内更为密切，且美国、中国、南非、澳大利亚及德国是"灌丛化"相关领域研究的中坚力量。(3)目前"灌丛化"相关领域的研究内容主要包括灌丛化形成机制及生物多样性对灌丛化的响应，草、灌木之间的竞争关系和土壤性质对灌丛化的响应等。研究指出:我国"灌丛化"相关研究尚处于起步阶段，且前人对灌丛化的研究多针对具体研究区域，相对分散，且合作较少;同时在全球尺度上的研究及大数据整合分析相对较少，仍需进一步研究。随着"灌丛化"研究的深入发展，灌丛化对微生物群落组成的影响、灌丛化对干旱胁迫等环境因子的响应及控制灌丛化有效措施等相关研究将在未来一段时间持续热门。
Global Trends of Shrub Encroachment in Grassland:A Bibliometric Analysis
Shrub encroachment significantly alters the distribution of herbaceous plants,impacting vari-ous ecosystem functions in grassland.To comprehensively understand the current landscape,identify key area of focus,and explore emerging trends in this field,we conducted a bibliometric analysis of 4114 publica-tions on"shrub encroachment"published between 1982 to 2023.We employed VOSviewer and CiteSpace visualization software to analyze and visualize the publication volume(distribution,trend,citation frequen-cies),collaboration networks(teams,institutions,countries)and keyword co-occurrence patterns within the"shrub encroachment"research domain.The results showed that:(1)Both domestic and international research on shrub encroachment exhibited a steady upward trend,with international demonstrating higher publication output and citation impact.Analysis of highly cited papers revealed their publications in high-impact journals,suggesting their significant contribution and academic value to the field.(2)International collaborations(teams,institutions,countries)were more extensive compared to domestic collaborations.The United States,China,South Africa,Australia,and Germany emerged as leading contributors to shrub encroachment.(3)Current research predominantly focuses on the mechanisms of shrub encroachment for-mation and its impact on biodiversity,competition between grasses and shrubs,and soil property alterna-tions.The study indicates that research on shrub encroachment formation in China is still in its early stages,characterized by scattered studies and limited collaboration,often restricted to specific regions.Fur-thermore,increased emphasis on global-scale research and big data-driven meta-analysis is recommended.Future research directions are likely to explore the impacts of shrub encroachment on microbial communi-ties,its response of to environmental factors like drought stress,and the development of effective control measures.
NETL
NSTL
万方数据
维普
