Abstract:

Based on the quantitative analysis of the atlas of Vosviewer and Citespace， 1 462 literatures on the study of sand barriers in China from 1980 to 2020 using CNKI， Wanfang data and Weipu information as data sources were selected as samples， and 50 highly cited articles on sand barriers published in foreign journals after 2000 were selected as samples. Statistics and mapping of literature output change， keyword co-occurrence， co-occurrence of authors' cooperation， institutional cooperation， mutation and time zone change were conducted to clarify the current situation of sand barrier research in China and explore hot issues. The results show that： the output of sand barrier research literature in China can be divided into four stages： 1980-1990 in the initial stage， 1990-2000 in the development stage， 2000-2010 in the rapid development trend， 2010-2020 in the high and stable development trend； the key words are mainly desert control， plant sand fixation， Ulan Buhe desert and Kubuqi Desert， wind tunnel and numerical simulation， automatic sand barrier The cooperation between the author and the organization is in the form of "overall dispersion， part concentration"， lacking of mutual communication and cooperation between members and organizations； the analysis of abrupt change time zone shows that after 2013， the research focus of sand barrier in China is soil and water conservation， vegetation restoration， numerical simulation， wind speed and flow field， sediment transport， sand control measures and formulation of sand control and prevention policies， These hot spots will also be hot issues in the future. Looking forward to the future， although the overall trend of desertification in China has been curbed， there is still a long way to go for desertification control.

Key words: Vosviewer, Citespace, atlas, sand barrier research, hotspot analysis