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Chinese Agricultural Science Bulletin ›› 2023, Vol. 39 ›› Issue (28): 142-150.doi: 10.11924/j.issn.1000-6850.casb2022-0806

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Analysis of the Research Situation of Ancient Trees at Home and Abroad from 2012 to 2021:Based on CiteSpace and VOSviewer

YE Chunlei1(), MA Xiaoyan2(), LIU Zixuan1, CHENG Guanhua2   

  1. 1 Intellectual Property Information Service Center, Beijing University of Agriculture, Beijing 102206
    2 National Forestry and Grassland Ancient Tree Health and Ancient Tree Culture Engineering Technology Research Center, Beijing University of Agriculture, Beijing 102206
  • Received:2022-09-26 Revised:2022-11-16 Online:2023-10-05 Published:2023-09-25

Abstract:

In order to conduct a comprehensive and in-depth analysis of the research status of ancient trees at home and abroad, and identify the hotspots and frontiers of ancient trees during 2012 and 2021, this paper took the relevant research literature as the data foundation, which was included in the CNKI database and the core collection of Web of Science. This paper fully integrated the advantages of CiteSpace and VOSviewer visualization software, and used comprehensive literature co-author network, co-citation network and co-word network to carry out the visualization analysis of scientific knowledge map. This paper found that the attention of researchers at home and abroad on ancient trees was on the rise year by year. In China, the main research institutions included Shanghai Green Management Guidance Station, Taiyuan Garden Plant Research Center, etc. The main domestic research contents involved four aspects, respectively: investigation of ancient tree resources, ancient tree protection measures, the soil impact on ancient tree growth and analysis of ancient tree ecological characteristics. Internationally, the most influential research country was the United States, and the second was China. Among the international research institutions, the most influential research institution was the Chinese Academy of Sciences, and Yang Y, et al. were highly influential authors in this field. The main research contents of international ancient trees involved four aspects, namely: the biological and cultural heritage value of ancient trees, the extensive ecological value of ancient trees, the value of ancient trees in the protection of regional biodiversity, and the unique advantages of ancient trees in genetic diversity.

Key words: ancient trees, situation analysis, scientific knowledge map, CiteSpace, VOSviewer