基于知识图谱的农田土壤水盐运移研究进展

Research Progress of Water-salt Transport in Farmland Soil Based on Knowledge Map

农田土壤水盐运移特征及机理分析在整个作物生长过程中具有重要作用,是灌溉决策、盐渍化治理以及作物产量提升的重要参考依据。将1973—2023年以水盐运移为主题在中国知网和Web of Science中检索到的相关文献进行统计,运用CiteSpace软件将相关文献进行可视化分析,总结了目前水盐运移相关方面的研究重点和未来发展趋势。通过对国内外近50年土壤水盐运移相关领域文献的发文量、作者和机构合作、关键词共现、聚类、突现时间线图谱等进行可视化计量分析,结果表明关于水盐运移的话题热度将持续增高;国内发文作者间相互联系较为紧密集中,水盐运移研究领域核心研究队伍逐渐扩大;国内发文机构在水盐运移研究领域具有较强影响力,其中中国科学院研究有着重大的贡献,但研究具有地域局限性;关于土壤水盐运移研究的内容主要聚焦在土壤中水盐含量变化规律和植物滴灌技术及其模拟预测。土壤水盐运移的研究对我国大面积盐碱地的治理具有重要意义,同时水盐运移在不同地域下的不同情况也将成为未来研究重点。

The analysis of the characteristic and mechanism of water-salt migration in farmland soil plays an important role in the whole crop growth process,and is an important reference for irrigation decision-making,salinization control and crop yield improvement.We analyzed the relevant literatures on water and salt migration retrieved from CNKI and Web of Science from 1973 to 2023,used CiteSpace software to conduct a visual analysis of the relevant literatures,and summarized the current research focus and future development trend of water and salt migration.Visual quantitative analysis of the number of articles published in the field of soil water and salt migration at home and abroad in the past 50 years was adopted,including the number of authors and institutions,the co-occurrence of keywords,clustering and emergence timeline maps.Results showed that the topic heat of water and salt migration continued to increase.The authors of domestic articles were closely related to each other,and the core research team in the field of water and salt migration was gradually expanding.The domestic publishing institutions had a strong influence in the field of water and salt migration research,among which the research of the Chinese Academy of Sciences made a significant contribution,but the research had regional limitations.The research content of soil water and salt migration mainly focused on the change law of water and salt content in soil,plant drip irrigation technology and its simulation prediction.The study of soil water and salt migration was of great significance to the treatment of large area of saline-alkali land in China.Meanwhile,the different conditions of water and salt migration in different regions also became the focus of future research.