基于CiteSpace分析的中国黑土地保护利用研究热点与趋势

Research Hotspots and Trends of Black Soil Protection and Utilization in China Based on the CiteSpace Analysis

当前,黑土地保护利用已经成为关乎国家粮食安全的重要科学议题。本研究基于CiteSpace软件对中国黑土地保护利用相关研究进行可视化梳理,重点围绕研究主题、热点和前沿开展图谱分析,系统归纳并提炼了相关研究的演进脉络、研究侧重点与发展趋势。结果显示,2015年后黑土地保护利用领域发文数量增长较为迅速,但学者间合作紧密程度不高,缺乏跨单位、跨学科的交叉合作,且有基金资助的研究所占比重不足25%。从研究热点变动来看,黑土地保护利用领域的研究经历了从关注黑土区土地退化和水土流失问题,到聚焦黑土地保护利用关键技术研发、集成、推广、应用以及关键机制凝练,再到现阶段将黑土地保护利用作为保障国家粮食安全重要抓手的发展历程。

At present,the black soil protection and utilization have become an important scientific issue concerning the national food security.This study systematically sorted out the research hotspots and development trends in the field of black soil protection and utilization in China.This study visually combed the relevant research on the protection and utilization of black soil in China,focused on the research theme,hotspots and frontiers to carry out the map analysis,and systematically summarized and extracted the evolution vein,research focus and development trends of relevant research based on the CiteSpace software.After 2015,the number of published papers in this field increased rapidly.However,the close cooperation among scholars was not high,the cross-unit and interdisciplinary cooperation was insufficient,and the proportion of research institutes supported by fundings was less than 25%.From the perspective of changes in the research hotspots,the research in the field of black soil protection and utilization experienced the whole development process from concentrating on the land degradation and soil erosion to focusing on the exploration,integration,promotion and application of key technologies for the black soil protection and utilization,and then to taking the black land protection and utilization as an important starting point to ensure the national food security at the present stage.