基于文献计量的植物WUE研究现状分析

全面了解植物水分利用效率（WUE）研究现状可为未来该领域研究方向的确立和发展趋势预测提供依据。为此，基于Web of Science（WoS）核心合集的科学引文索引数据库，采用VOSviewer文献计量分析软件对植物WUE研究2000-2021年发表的相关文献进行分析。结果表明，1）2000-2021年世界范围内该领域发文数量呈抛物线式增长趋势，载文量较多的期刊有Agricultural Water Management，Field Crops Research，Agricultural and Forest Meteorology等，发文量前3的国家为中国、美国和澳大利亚，发文量前3的机构为中国科学院、西北农林科技大学和中国农业大学，发文量前3的作者为Liu Fulai，Kang Shaozhong，H.Medrano，该领域大多数研究者之间合作关系较少；2) 尽管中国学者发文数量最多，但有影响力和高被引用论文数量少；3) 目前该领域主要的研究方向可分为3类，植物WUE种间或种内差异的生理或分子机制、灌溉和施肥等田间管理措施对作物WUE的影响与调控、气候变化对陆地生态系统WUE的影响；4）基于关键词热点分析和热点论文分析，给出了未来植物WUE研究需要加强的方面。

An Analysis of Present Status in Plant Water Use Efficiency Research Based on Bibliometrics

Grasping the present status in the study of plant water use efficiency (WUE) can provide evidence for determining future research direction and forecasting future developmental trends in this field.Based on the Science Citation Index-Expanded (SCIE) database of core collection of web of Science (WOS),the selected literatures from 9 disciplines related to plant WUE research in recent 22 years (2000-2021) were analyzed by VOSviewer bibliometric analysis software.The results indicated that 1) the publications in this field showed a parabolic increase,and the top three journals with most publications were Agricultural Water Management,Field Crops Research,Agricultural and Forest Meteorology.The top three countries were China,USA and Australia,and the top three organizations were Chinese Academy of Sciences,Northwest A&F University and Chinese Agricultural University,the top three authors were Liu Fulai,Kang Shaozhong and Medrano H.,most authors in this field were seldom connected with others.2) Although Chinese scholars had the most publications,they produced few influential and highly-cited papers.3) Researches in this field could be classified into three clusters:interspecific and intraspecific variation of plant WUE and related physiological and molecular mechanisms,effects and regulation of irrigation and other management practices on crop WUE,effects of climate change on WUE of terrestrial ecosystem.4) Based on hot spot analysis on keywords and papers,some points that needed to be strengthened in the future were presented for plant WUE.