| 摘要: |
| 为深入了解土壤中微塑料污染相关的研究信息和发展趋势，利用VOSviewer和CiteSpace整理了CNKI和Web of ScienceTM数据库中2000—2022-05在土壤微塑料污染领域已发表的研究成果，从发文数量、发文期刊、作者及所属机构、国家/地区、关键词和共被引信息进行分析。结果表明:1)探索初期土壤中微塑料污染相关文献的发表量略有波动，研究热度在2018年之后持续增长；中国科学院、西北农林科技大学和瓦格宁根大学研究中心这3所研究机构在该领域发文量排名前3。2)农田土壤是最具代表性的一类土壤类型，沙漠、湿地和高山中的微塑料污染已经受到国内外学者的高度关注。3)研究方向包括微塑料进入陆地土壤的方式及其在土壤中的丰度分布特征、土壤样本中微塑料检测技术的选择与优化、微塑料作为载体吸附运输土壤中的重金属和溶解有机物并经食物链传递对生物可能带来的有害影响等。4)从研究热点上看，土壤中微塑料污染领域的研究对象逐渐从农田土壤扩展到多种类型及偏远地区的土壤中，微塑料在各类土壤中的运输与尺寸选择机制及其适用的检测手段取得进一步发展，对土壤中不同粒径大小的微塑料的分析方法发展成为更细分的研究方案，对土壤中微塑料的风险评估以及从细胞、分子和基因等微观角度分析微塑料由土壤进入动植物不同组织和人体器官后的潜在风险成为该领域新的研究热点。本研究计量分析结果可为土壤中微塑料污染现状的深入研究提供参考。 |
| 关键词: 土壤 微塑料 可视化分析 知识图谱 文献计量法 |
| DOI：10.11841/j.issn.1007-4333.2023.06.04 |
| 投稿时间：2022-09-25 |
| 基金项目:国家自然科学基金项目(22166034；4183064)；黑土地保护与利用科技创新工程专项资助(XDA28010502) |
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| Visualization analysis of the status and emerging trends of soil microplastics pollution |
|
ZHANG Zixuan1,YU Hongwen2*,MENG Longyue3*
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| (1.Department of Chemistry, College of Science, Yanbian University, Yanji 133002, China;2.Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China;3.Department of Environmental Science, College of Geography and Ocean Sciences, Yanbian University, Hunchun 133300, China) |
| Abstract: |
| In order to deeply understand the research information and development trends related to microplastic pollution in soil, VOSviewer and CiteSpace were used to collate the published research results in the field of soil microplastic pollution in CNKI and Web of Science databases from 2000 to May 2022, and analyzed them in terms of the number of articles published, journals published, authors and affiliations, countries/regions, keywords and co-citation information. The bibliometric analysis results showed that: 1)The volume of literature in the previous period fluctuated slightly and the reaearch heat continued to increase after 2018; The Northwest Agriculture and Forestry University, the Wageningen University Research Centre, and the Chinese Academy of Sciences have issued the largest number of papers in this field. 2)Farmland soil is the most representative type of soil. In addition, microplastic pollution in deserts, wetlands and mountains has been highly concerned by scholars at home and abroad. 3)The research directions in this field include the mode of entry of microplastics into terrestrial soils and the characteristics of their abundance distribution in soils, the selection and optimization of microplastic detection technology in soil samples, microplastics as carriers to adsorb and transport heavy metals and dissolved organic matter in soil, and possible harmful effects of microplastics on organisms transmitted through the food chain, etc. 4)From the perspective of research hotspots, the research object of microplastic pollution in soil has gradually expanded from agricultural soils to a wide range of soil types and remote areas. The concentration transport and size selection mechanism of microplastics in various soils and their applicable detection methods have been further developed. The analysis and testing of microplastics with different particle size ranges in soil has developed into a more subdivided research program. Especially the assessment of the risk of microplastics in soil and the analysis of the potential hazards of microplastics from soil entering different tissues of plants and animals and organs of the human from the microscopic perspective of cells, molecules and genes have become a new research hotspot in the field. The results of bibliometrics analysis in this paper can provide reference for the in-depth study of microplastic pollution in soil. |
| Key words: soil micro-plastic visual analysis knowledge graph bibliometrics |
