不同管理模式下土壤质量演变的研究态势分析——基于文献计量

A Bibliometric Analysis of the Research Status of Soil Quality Evolution under Different Management Modes

【目的】随着人与土地资源的矛盾加剧,集约化种植下农田土壤质量演变受到了国内外学者的广泛关注。客观分析不同管理模式下土壤质量研究的发展脉络与现状,明确当前的研究前沿与热点问题,为耕地质量领域研究提供参考。【方法】利用文献计量学方法,基于Web of Science和CNKI数据库,根据发文量、发文国家、发文机构、载文期刊、论文被引频次及关键词方面分析近30年来土壤质量研究的发展态势、前沿领域以及国际合作状况等。【结论】分析发现,该领域在时间序列上的相关文献数量整体保持良好的上升趋势;美国、中国、印度、巴西、加拿大是国际文献发文量较多的国家;共现网络图谱分析表明,长期施肥及耕作、轮作等措施与土壤养分、土壤结构、土壤生物与群落结构、土壤功能与监测评价仍是当前土壤质量研究的热点。近年来国内相关研究逐渐向基于土壤生物学土壤质量提升模式方向靠拢,但与国际领先水平仍有一定差距。【展望】土壤生物学在土壤质量演变中的机理研究、土壤生态系统服务功能的量化及其应用可能是未来该领域研究的两大热点,综合利用信息技术、生物技术及大数据分析技术来实现土壤质量动态监测与预测预警是未来土壤质量研究的重要方向。

[Objective]As human pressures on land resources intensify,the evolution of farmland soil quality under intensive cultivation has attracted extensive attention from scholars around the world.Objective analysis of the development context and current status of soil quality research under different management modes can identify the current research frontiers and leading research topics,and provide reference for cultivated land quality research.[Methods]Using bibliometrics based on the Web of Science and China National Knowledge Infrastructure(CNKI)databases,the development trends,frontier fields and status of collaborative soil quality research over the past 30 years were analyzed in terms of the volume,country and institution of publication,as well as citation frequency of papers and keywords.[Results]It was found that the number of relevant articles in the field of time series increased steadily overall,and that the United States,China,India,Brazil and Canada had the highest output of international collaborative research publications.Co-occurrence network analysis showed that long-term fertilization,tillage and crop rotation,as well as measures such as soil nutrients,structure,biology,community structure,function,monitoring and evaluation were still leading topics in soil quality research.In recent years,domestic research has gradually moved toward the soil quality improvement model based on soil biology,but is still somewhat behind the level of current international research.[Prospect]The mechanism of soil biology in the process of soil quality improvement and the quantification of soil ecosystem service function will become two leading research topics in the near future.The combination of information technology,biotechnology and big data analysis technology to perfect dynamic monitoring and evaluation of soil quality will also attract more attention for soil quality improvement and soil health in the future.