Cultivated land quality research situation analysis based on VOSviewer and CiteSpace
In order to understand current research hotspots and frontier directions in field of cultivated land quality and further deepen rel-evant research,bibliometrics method was used to analyze research hotspots and trends in this field.VOSviewer and CiteSpace software was used to analyze 1 258 valid documents from CNKI and 3 730 valid documents in the core collection database of Web of Science.Among them,VOSviewer software was used to draw knowledge map of author cooperation and keyword co-occurrence,and CiteSpace software was used to draw knowledge map of keyword clustering,keyword emergence,keyword timeline,etc.A visual analysis of documents in the field of cultivated land quality from 1992 to 2022 was made in terms of number of documents issued,authors,keywords,etc.Results showed that number of Chinese documents issued increased rapidly from 2007 to 2015,and number of English documents issued increased sharply from 2018 to 2022.The number of English documents issued was higher than that of Chinese docu-ments as a whole.The authors now showed that in Chinese literature database,the authors have formed a research team represented by KONG Xiangbin,WU Kening and MA Youhua.In English,there were research teams represented by HU Chengxiao,LU Jianwei,LI Xiaokun.Keywords relevant atlas showed that domestic research hotspots included cultivated land quality evaluation,land remedi-ation,soil fertility,and cultivated land quality related countermeasures,while foreign research hotspots included soil basic fertility,environmental quality,environmental pollution,and spatial layout.In the field of cultivated land quality in the future,remote sensing would continue to be used to study temporal and spatial changes of cultivated land quality and grade evaluation.On premise of protecting tenvironment,improving productivity of cultivated land,ensuring national food security and reducing human health risks would be fo-cus of future research.
cultivated land qualityvisual analysisbibliometricsCiteSpaceVOSviewerland consolidation
万方数据
维普
