地下水硝酸盐污染研究热点与趋势分析  

Analysis of research hotspots and trends in groundwater nitrate contamination

作　　者：刘玉莲 李捷 姜颖 焦璇[1,2] 谢宇熙 LIU Yulian;LI Jie;JIANG Ying;JIAO Xuan;XIE Yuxi(College of Water Sciences,Beijing Normal University,Beijing 100875,China;Engineering Research Center of Groundwater Pollution Control and Remediation,Ministry of Education,Beijing 100875,China)

机构地区：[1]北京师范大学水科学研究院,北京100875 [2]地下水污染控制与修复教育部工程研究中心,北京100875

出　　处：《水文地质工程地质》2024年第5期221-230,共10页Hydrogeology & Engineering Geology

基　　金：国家自然科学基金项目(42377058);国际原子能机构CRP项目(F31006)。

摘　　要：地下水硝酸盐污染是世界性水环境问题,目前该领域的阶段性总结分析研究仍然较少。文章选取1968-2022年Web of Science核心数据库中收录的地下水硝酸盐污染领域相关英文核心期刊发表的14407篇论文作为样本数据,采用文献计量学中定量研究与定性分析的信息分析方法,基于知识图谱的结构性和时间性指标,以VOS viewer信息分析软件为支撑工具,对地下水硝酸盐污染领域研究的发展趋势与当前热点进行梳理。研究结果表明:(1)该领域发文量呈指数上升,发文期刊主要集中在环境科学类和水资源类,表明硝酸盐污染研究在环境与水资源领域占有重要地位;(2)发文机构统计结果显示,按机构发文量排序,前10位中美国和中国机构的发文量占发文总量的一半以上;(3)该领域主要研究的4个方向可以概括为溯源、迁移转化机理、污染修复和风险评估,其中污染修复的关键词最多;(4)1990-2014年期间研究的热点集中于溯源与迁移转化机理,但是具体内容有所区别:1990-1998年侧重于硝酸盐污染源的识别,1999-2014年侧重于硝酸盐污染源识别方法的研究,其中同位素和模型模拟技术被突出显示,2015-2022年研究的热点集中在污染风险评估上。以上文献计量学分析结果较客观地展现了地下水硝酸盐污染领域的研究热点与趋势,可为该领域后续的研究与管理工作提供一定的参考。Groundwater nitrate contamination is a worldwide water environment problem with few phased summaries in this field.Here,14407 articles were selected from the Web of Science database for the years 1968—2022 to analyze the development trends and current hotspots in the field of groundwater nitrate contamination research with bibliometric visualization analysis software(VOS viewer).The results showed that:(1)The number of relevant publications has been exponentially increasing.The published journals are mainly related to environmental science and water resources,indicating an important role in this field.(2)The results from the publication institutions and funding institutions show that more than half of the total number of articles from the top ten publication institutions and funding institutions are from the United States and China.(3)The main issues in groundwater nitrate contamination research can be summarized as four subsets:source tracing,migration and transformation mechanisms,pollution remediation,and risk assessment.Among them,pollution remediation has the most keywords,demonstrating the importance of this research area.(4)From 1990 to 2014,the research hotspots in groundwater nitrate research were mainly focused on source tracing and migration and transformation mechanisms.Specifically,the main topic was the identification of nitrate pollution sources during the stage from 1990 to 1998,while the focus shifted to the methods for identifying nitrate pollution sources from 1999 to 2014,with isotopes and models being particularly effective.For the recent stage from 2015 to 2022,the research hotspots have shifted to risk assessment.The bibliometric analysis results in the field of groundwater nitrate pollution can provide some reference for the direction of this field.

关 键 词：地下水 硝酸盐污染 文献计量学 VOS viewer Web of Science 

分 类 号：X141[环境科学与工程—环境科学]