基于文献计量的秸秆还田研究态势分析

Research Status of Straw Returning Based on Bibliometrics

秸秆还田是一种更有效的秸秆处理措施,引起国际相关研究领域的关注。利用CiteSpace和VOSviewer可视化软件对Web of Science(891篇)和CNKI(3213篇)核心数据库文献进行分析。结果表明:(1)发文量总体呈上升趋势,其中《农业工程学报》和《印度农业科学杂志》分别是国内外载文量最多的期刊,而农业基础科学和农艺学是最受欢迎的学科类别。(2)发文量前3位的国家有中国(593篇)、印度(130篇)、美国(103篇),研究力量主要集中在高等教育机构,而中国科学院在国际上影响力深远,以鲁剑巍、Ping H E等为代表的团队合作呈现出总体分散、局部集中的特点。(3)关键词经历了机械化农业—土壤肥力—温室气体排放—秸秆还田技术4个研究阶段。(4)关键词密度共现分析表明,秸秆还田领域研究热点可归纳为秸秆还田培肥土壤与作物产量、长期施肥与秸秆联合效益及保护性耕作与土壤理化性质3个方面,未来可能聚焦于因地制宜的秸秆还田技术与经济效益的研究。

Straw returning is an effective straw management practice,which has gained attention from international academic circles.In the present study,the core database of Web of Science(891 articles)and CNKI(3213 articles)were analyzed by using CiteSpace and VOSviewer visualization software.The results are as follows.(1)The number of publications is generally on the rise.Journal of Agricultural Engineering and Indian Journal of Agricultural Sciences have published the largest number of articles at home and abroad,respectively,and basic agricultural science and agronomy are the most popular discipline categories.(2)The top three countries with the largest number of published articles on straw returning are China(593),India(130),and the United States(103).The research institutions are mainly universities and colleges,while the Chinese Academy of Sciences has a far-reaching international influence.The teamwork represented by Lu Jianwei,Ping H E,etc.presents the characteristics of overall dispersion and partial concentration.(3)The keywords have experienced four research stages of mechanized agriculture-soil fertility-greenhouse gas emissions-straw returning to field.(4)Keywords density co-occurrence analysis shows that the research hotspots in the field of straw returning can be summarized as:straw returning to improve soil fertility and crop yield,combined benefits of long-term fertilization and straw returning,and conservation tillage and soil physical and chemical properties.The future research will focus on developing straw returning technologies based on local conditions and economic benefit analysis.