Research Hotspot and Visualization Analysis on Arid and Barren Land
[Objective]The hotspots about research on dry and barren land in China were studied and analyzed,which provided reference for the efficient development of dryland agriculture and timely grasp of the research situation of arid and barren land.[Method]Based on bibliometrics methods,the relative studies collected by CNKI from 1955 to 2023 were analyzed,the number of papers,publications,research contents,hotspots in China were recorded,and the research hotspots were predicted and analyzed through CiteSpace V.[Result]The literature about arid and dry land from 1955 to 2023 showed a fluctuant-rising trend,and the relative studies has gradually become the hotspots.At present,domestic publishing institutions are mainly concentrated in provinces with high agricultural development level and strong academic ability,such as Beijing,Jiangsu,Sichuan,Henan and Shaanxi,among which Northwest A&F University has the largest number of publications,reaching 92,and related papers are mainly published in environmental and agricultural academic journals.There are 34 and 15 authors who published paper and published 4 or more papers from the obtained 2116 papers and 822 high-level papers through retrieving,with 226 and 95 papers published respectively,accounting for 10.7%and 11.6%of the total number of papers related to arid and barren land,respectively,which is still far from the index inferred by Price(the number of papers by core authors should account for 50%of the total number of papers).There is no stable core author group and fewer core authors.The high frequency keywords mainly include drought stress,soil degradation,drought resistance,wheat,peanut and photosynthetic characteristics,and the research focus and hotspots are different at different stages.[Conclusion]The study key points and hotspots of arid and dry land are different in different periods.Strengthening the cooperation and exchange of high-level scientific research institutions in the field of research about arid and barren land at home and abroad is one of the effective ways to improve the output of scientific researches.The current study focuses and hotspots include physiological and molecular response mechanism of crops in arid and dry land to the drought stress,the breeding of crop varieties with strong drought resistance,the improvement of water and fertilizer supply in arid and barren land for the improvement of crop yield.
soilarid and barren landbibliometricsPrice Lawresearch hotspot
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