国内保护性耕作研究知识图谱分析——基于CNKI的数据

Knowledge map of domestic research on conservation tillage

保护性耕作是一种先进的农业耕作技术,兼具生态治理与修复的作用。文中从文献计量学的角度出发,通过在CNKI中进行检索,得到与保护性耕作研究相关的文献数据,以知识图谱可视化的形式展现保护性耕作的研究现状、热点与发展趋势。结论是保护性耕作研究的内容从传统的研究保护性耕作措施及其对作物产量和经济效益的影响,发展到保护性耕作对土壤肥力、养分、含水量,再到目前的土壤有机碳、理化性质、温室气体等。研究的机构和作者之间合作密切,有稳定的科研团队,并且成果显著,关注的焦点不仅包括农业方面,还涉及到生态环境。保护性耕作不仅限于理论研究,还包括众多的技术试验、应用和推广。

Conservation tillage is a kind of advanced farming technique which has functions of ecological management and restoration.From the perspective of bibliometrics,through the retrieval in CNKI,we got literature data related to conservation tillage.Then in the form of knowledge map visualization,we showed the research status,hotspot and development trend of conservation tillage.The contents of the conservation tillage research are from traditional research of conservation tillage measures,and their effects on crop yield and economic benefit,to the conservation tillage influence on soil fertility,nutrient and water content,then to soil organic carbon,physical and chemical properties,greenhouse gases.The research institutes and authors have a close,stable research team,and the results are remarkable.They focus not only on agriculture but also on the ecological environment.Conservation tillage is not limited to theoretical research,but also includes numerous technical tests,applications and promotions.