基于CiteSpace的国内外农业面源污染研究进展与前沿分析

目的]分析农业面源污染相关的国内外文献，探讨农业面源污染领域的发展历程、国内外研究热点和前沿，为今后研究提供参考。方法]文章运用文献共被引、关键词共现和关键词突现的文献计量分析法，以Web of Science(WOS)核心数据库以及中国知网（CNKI）的相关文献为研究对象，对2000—2021年农业面源污染领域国内外研究历程及发展趋势进行分析。结果]（1）农业面源污染问题受到国内外学者的广泛关注，中国发文量最多，占全球的46.18%;(2)对农业面源污染进行聚类分析表明目前国际上农业面源污染领域的知识群组主要集中在水土流失、氮和磷、农业面源污染模型、最佳管理措施、冗余分析等，而国内对农业面源污染的研究主要侧重于农业面源污染负荷、化肥、人工湿地、防治对策等方面。（3）在聚类分析的基础上进行关键词共现分析发现生物技术控制农田径流中氮磷污染、利用Geographic Information System(GIS)等技术建立多种模型并对模型进行集成与优化、确定经济技术上可行的最佳管理措施、识别源区域的风险水平和空间分布是该领域的研究前沿。结论]利用农业面源污染模型、应用环境友好型技术...

RESEARCH PROGRESS AND FRONTIER ANALYSIS OF AGRICULTURAL NON-POINT SOURCE POLLUTION AT HOME AND ABROAD BASED ON CITESPACE

This paper aims to analyze the domestic and foreign literatures related to agricultural non-point source pollution, and discuss the development history, domestic and foreign research hotspots and frontiers in the field of agricultural non-point source pollution, so as to provide reference for future research. The bibliometric analysis method of literature co citation, keyword co-occurrence and keyword emergence was used to analyze the research process and development trend of agricultural non-point source pollution at home and abroad from 2000 to 2021 with the core database of web of science and relevant documents of CNKI. The results were indicated as follows. (1) Agricultural non-point source pollution had been widely concerned by scholars at home and abroad. The largest number of papers published in China, accounting for 46.18 of the world''s total publication. (2) Cluster analysis of agricultural non-point source pollution showed that the international knowledge groups in the field of agricultural non-point source pollution were mainly focused on water and soil loss, nitrogen and phosphorus, agricultural non-point source pollution model, best management measures, redundancy analysis, etc., while domestic research on agricultural non-point source pollution mainly focused on agricultural non-point source pollution load, chemical fertilizer, artificial wetland, prevention and control countermeasures, etc. (3) Keyword co occurrence analysis based on cluster analysis found that biotechnology control of nitrogen and phosphorus pollution in farmland runoff, establishment of multiple models using GIS and other technologies, integration and optimization of models, determination of the best management measures economically and technically feasible, and identification of risk level and spatial distribution of source areas were the research frontiers in this field. In summary, forming a multi-disciplinary and multi field cross integration development model is of great significance to the field of agricultural non-point source pollution prevention and control, as well as using agricultural non-point source pollution model and applying environment-friendly technology to promote agricultural sustainable development. At present, the research related to agricultural non-point source pollution is still in its development period, and so it is necessary to pay a great attention to the in-depth research and strengthen the cooperation between the author team staff and teams from different regions.