基于文献计量学分析的东北黑土地土壤侵蚀研究态势及热点

Trends and hotspots of soil erosion research in black soil land of Northeast China based on bibliometric analysis

东北黑土地是我国粮食生产的“稳定器”和“压舱石”。严重的水土流失导致黑土层变薄、耕地损毁及地力下降,威胁我国粮食安全。本文以CNKI数据库中662篇东北黑土区土壤侵蚀领域研究中文文献和Web of Science核心数据库中189篇英文文献为对象,利用文献计量方法,借助CiteSpace和VOSviewer绘制东北黑土区土壤侵蚀知识图谱,识别主要载文期刊、资金来源、核心作者及团队,梳理不同时期研究热点和发展趋势,揭示其背后的影响因素。结果显示:①该主题中文发文量自2003年快速增长,2003−2021年载文量占总量91.6%,载文前3的期刊是《农业工程学报》《土壤学报》《农业机械学报》。英文文献起步较晚,载文前3的期刊是Soil and Tillage Research、Catena和Geoderma。已发表的中、英文文献研究经费主要来源于国家自然科学基金。②该领域较早开展研究的是以张晓平为代表的中国科学院东北地理与农业生态研究所团队和以蔡强国为代表的中国科学院地理科学与资源研究所团队,中文文献发文量前3的学者是郑粉莉、韩晓增和张兴义,英文文献发文量前3的学者是张兴义、刘晓冰和刘刚。③“土壤水蚀过程与机理”“土壤侵蚀时空变化评价”“土壤退化与保护性耕作”“水土保持与土地生产力”“侵蚀沟发育与耕地保护”“土壤侵蚀与土壤质量”“土壤侵蚀速率”“风力和冻融对水力侵蚀的影响”是不同时期的研究热点。④“人工模拟降雨”“GIS和RS”“土壤侵蚀模型”“137Cs和210Pb示踪法”是主要研究方法和手段。复合侵蚀过程及机理,区域土壤侵蚀预测模型研发,水土流失阻控措施及效应,土壤侵蚀退化与土地生产力的关系等是未来研究的重点。

The black land of Northeast China is the"stabilizer"and"ballast stone"of the national grain production.Serious soil erosion declines both the thickness and quality of the black soil,which directly threatens the national food security.Retrieving 662 Chinese research publications in the CNKI database and 189 English research publications in the Web of Science core database as the object with bibliometric methods,the knowledge map of soil erosion in the black soil area of Northeast China was drawn by CiteSpace and VOSviewer softwares.The main published journals,funding sources,core authors and teams were identified,the research hotspots and development trends in different periods were sorted out,and the influencing factors behind them were revealed.The results showed that:①The number of Chinese papers published on this topic increased rapidly since 2003,and the number of papers published in 2003−2021 accounted for 91.6%of the total.The top 3 journals were Transactions of the Chinese Society of Agricultural Engineering,Acta Pedologica Sinica and Transactions of the Chinese Society for Agricultural Machinery.The English publication started late,and the top 3 journals were Soil and Tillage Research,Catena and Geoderma.Research funding was mainly from the National Natural Science Foundation of China.②The representatives in the earlier studies were ZHANG Xiaoping with the Northeast Institute of Geography and Agroecology,the Chinese Academy of Sciences(CAS),and CAI Qiangguo with the Institute of Geography and Resources,CAS.The top 3 scholars in Chinese literature were ZHENG Fenli,HAN Xiaozeng and ZHANG Xingyi,and the top 3 scholars in English literature were ZHANG Xingyi,LIU Xiaobing and LIU Gang.③"Process and Mechanism of Soil Water Erosion","Assessment of Temporal and Spatial Changes of Soil Erosion Supported by GIS and RS","Soil Degradation and Conservation Tillage","Water and Soil Conservation and Land Productivity","Gully Development and Cultivated Land Protection","Soil Erosion and Soil Quality","Soil Erosion Rates",and"the Impact of Wind and Freeze-thaw on Hydraulic Erosion"were research hotspots in different periods.④"Artificial Simulation of Rainfall",“GIS and RS”,“Soil Erosion Model”and“137Cs and 210Pb Nuclide Tracer”were the main research methods.Composite erosion process and mechanism,regional soil erosion prediction model development,soil erosion control measures and effects,the relationship between soil erosion degradation and land productivity were the focus of future research.