[目的]为全面梳理树木干旱致死相关研究的进展和热点，以期为科研人员提供该领域当前进展的全面认识。[方法]基于中国知网(CNKI)和Web of Science(WOS)所收录的发表于2000-2023年期间的相关论文，利用 CiteSpace分析筛选出的 153 篇中文和 1 757 篇英文文献的作者、机构、国家(地区)、关键词等信息。[结果]树木干旱死亡领域的研究成果丰富，超过50%的研究成果来自中国、西班牙和美国。国内外研究主要侧重于碳饥饿、水力失衡和水分胁迫等主题，也针对干旱、树木死亡、气候变化和极端气候等热点问题结合本土树种开展了大量研究。从相关机制来看，主要有水力失衡和碳饥饿两个研究方向;就研究对象而言，则主要集中于欧洲山毛榉和巨型红杉。[结论]通过对树木干旱致死文献的分析，旨在清晰地展示国内外干旱致死的研究现状和热点，为未来的进一步研究提供参考。
CiteSpace bibliometric analysis of research progress and hotspots on the drought-induced tree mortality
[Objective]This study aimed to comprehensively sort out the research process and hotspots of drought-induced tree mortality.[Method]By using CiteSpace software,this paper analyzed the authors,institutions,countries(regions),keywords and other relevant information of literatures on this topic based on two databases:China national knowledge infrastructure(CNKI)and Web of Science(WOS).The analyzed data in this paper are composed of 153 Chinese and 1 757 English literatures published from 2000 to 2023.[Result]The results revealed that the field of drought-induced tree mortality had made significant progress and exhibited steady growth throughout the research period.Authors from the United States,Spain,and China contributed to over 50%of the international publications.Domestic and international studies had focused on research hotspots such as carbon starvation,hydraulic failure and water stress,and a large number of studies had also been carried out on drought,tree death,climate changes and extreme climate in combination with native tree species.From the perspective of mechanisms,there were two main directions:hydraulic failure and carbon starvation;and in terms of research objects,the main focus is on European beech and giant sequoia.[Conclusion]Through the analysis of the literatures on drought-induced tree mortality,this article aims to display the current research status and hot spots of drought-induced tree mortality at home and abroad,and to provide a reference for further domestic research.
tree mortalityhydraulic failurecarbon starvationknowledge graphresearch progress
国家科技期刊平台
NSTL
万方数据
