Knowledge Mapping of Research on Land Use Change and Food Security: A Visual Analysis Using CiteSpace and VOSviewer.

Peng Cheng,Yaolin Liu,Ke Liu,Yue Dong,Ping Jiang,Houtian Tang

doi:10.3390/ijerph182413065

Abstract

Many scholars have conducted in-depth research on the theme of land use change and food security, and formed fruitful research results, but there is a lack of quantitative analysis and comprehensive evaluation of research achievements. Therefore, based on the relevant literature on the theme of land use change and food security in the core collection of the Web of Science (WOS) database, this paper takes the advantage of CiteSpace and VOSviewer bibliometric software to draw the cooperative network and keyword cooccurrence map to analyze the research progress and frontier. The results reveal that: (1) The research started in 1999 and can be divided into three stages: initial research, rapid development, and a stable in-depth stage. This topic has increasingly become a research hotspot in the academic community. (2) The distribution of research institutions is concentrated and forms a small cluster, and the research networks between developed and developing countries have been established, and developed countries are in the core position, but the cooperation network is not prominent. (3) The research content is becoming increasingly organized and systematic, and the research hot topics are divided into seven aspects. (4) The research area of the subject covers multiple levels, such as global, national, and specific natural geographical regions, and has formed a research system of geographic information technology and satellite remote sensing technology. It also presents the trend of cross integration with economics, land management and soil science. In the future, theoretical innovation still needs to be strengthened, and we should strengthen the research on the impact of agricultural chemical fertilizers on food security and study the impact of urban expansion on land use change.

Highlights

Land use change and its impact on food security have become one of the frontiers and hot topics studied by scholars worldwide [1,2,3,4]
By analyzing the keyword cooccurrence knowledge map (Figure 5), we find that the whole keyword knowledge map takes “food security”, “land use change” and “climate change”
Research land use change and food security was in a stage same time, the academic research results on the theme of land use change and food secusame time, the academic research results on the theme of land use change and food security have increased significantly in the past two decades, and these results show a signifof rapid development, which once again shows that research on this topic has attracted rity have increased significantly in the past two decades, and these results show a signifrity have increased significantly in the past two decades, and these results show a significant positive development trend

Summary

Introduction

Land use change and its impact on food security have become one of the frontiers and hot topics studied by scholars worldwide [1,2,3,4]. With the development of human society, the structure, depth and intensity of land use are constantly changing, which affects biodiversity and has a great impact on human food security [5]. Food security has been a major issue related to the overall political and economic situation of a country or region. Regional food production and food security have become hot issues of concern to governments and scholars [8,9,10]

Methods

Results

Discussion

Conclusion