Research Trend Analysis of Improvement of Medium-Low Yield Farmland in China Based on Bibliometrics
In order to comprehensively grasp the research trend and hot issues of improvement of medium-low yield farmland and promote soil improvement and farmland conservation in planting land,this study took the literatures on medium-and low-yield fields retrieved from the Chinese CNKI database as the research object,and used bibliometrics to summarize the current situation and development trend of medium-and low-yield research by collecting and analyzing the publication volume,disciplines involved,and publication status of literature,journal sources,research institutions and keywords.The results showed that the research on improving of medium-and low-yield fields started in the 1980s in China,and a total of 920 academic articles and 15 dissertations have been published until 2024.The number of academic articles published in different years showed an fluctuation pattern,with the three peak years being 1991-1992,1995-1997,and 2012-2014,respectively.The first six disciplines covers in academic articles were:agricultural basic science,agronomy,agricultural economics,crops,physical geography and surveying,and agricultural engineering.Provinces,municipalities,and research institutions where research began earlier included Liaoning,Guangxi,Beijing,and others,the top three provinces for publishing articles were Xinjiang,Jiangsu,Liaoning,and Hebei.The proportion of core journals in the overall literature was not high,and in-depth research needed to be strengthened.Research mainly focusd on classification,improvement measures,evaluation,and crop yield,etc in this field through class analysis and co-occurrence analysis.The improvement of medium-and low-yield fields were closely related to national food security,analyze its causes,types,evaluation methods,improvement and utilization in many aspects,the combination of agronomy and engineering is an important way to improve and fertilize medium-and low-yield fields in China,at the same time,other related technologies are integrated and matched to ultimately reduce soil barriers,improve soil fertility,and enhance the comprehensive production capacity of cultivated land.
万方数据
维普
