Bibliometric analysis on the effect of climate change to apple based on Citespace

Abstract:【Objective】Climate change, especially characterized by climate warming and frequent oc- currence of extreme weather and climatic events, and effect on agricultural production, have been a global hot issue. Apple is a worldwide fruit product. The impact of climate change is becoming more and more intense, and the risk of agro-meteorological disasters is increasing. CiteSpace is a literature analysis visualization software, which can show the evolution process of a certain field in a network map. Using the CiteSpace software, the map can be drawn to comprehensively discuss and visually ana- lyze the scientific research progress process and discipline development frontier in the field from multi- ple angles and dimensions. As the effects by climate change, the response and adaptation mechanisms of apple production has become one of the hot spots and focus problems in the world. The study aimed  to better understand the change of hot spot and avoid repetition and waste of research resources.【Meth- ods】Based on two core databases of the Web of Science and CNKI, the study visually analysed the pub- lished literatures with related subjects about“climate”and“apple”. 【Results】The results showed that, for the number of published papers,“climate”and“apple”were the most published papers (5693), and there were relatively few papers related to“flood”, only 206. The number of Chinese and English pub- lished articles showed an increasing trend, but the proportion of articles was too low, only 0.23. For the content, most of the English articles focused on the relevant cultivation techniques of“Fuji”, plant dis- eases, insect pests effect (codling moth), and drought, etc. In addition, more attention was paid to gene expression, cultural measures and other aspects. The contents published in Chinese was more inclined to efficient use of climate resources, climate sensitive factors, disaster prevention and control in apple, such as climate resource zoning, microclimate, etc.【Conclusion】The literatures published both in Chi- nese and English on the effects of climate changes to apple have been incresing. The focuses of atten- tion of the Chinese literatures and English literatures seems to be different.