BIBLIOMETRIC ANALYSIS AND DEVELOPMENT TREND DISCUSSION OF CONTAMINATED SOIL REMEDIATION TECHNOLOGY IN INTERNATIONAL RESEARCH
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摘要: 污染土壤修复是提高生态环境质量的重要途径,受到了越来越多研究者的关注。以Web of Science数据库的文献资料为数据源,利用CiteSpace、VOSviewer等文献计量软件,针对近10年(2011—2020)全球土壤重修复领域的相关文献,从发文量、发文国家、机构、关键词、作者、期刊及被引频次等方面进行分析,探讨了国内外研究现状及未来发展趋势。结果表明:污染土壤修复研究文献数量呈快速增长态势,中国、美国、澳大利亚、德国、法国等是外文文献发文量较多的国家;外文文献主要载文期刊有Environmental Science and Pollution Research、Chemosphere、Science of the Total Environment等;在外文文献发文数量和被引频次上,中国科研机构均占有重要地位,表明我国在污染土壤修复领域有着较强的国际学术影响力;通过关键词"共现"分析,发现"重金属""生物有效性""Pb""植物修复""生物修复""固定化""风险评估""多环芳烃"等是近10年的研究热点;利用关键词突现功能,发现风险评估、污染因子空间分布、土壤微生物群落、生物炭正逐渐成为全球研究的新热点。最后,结合作者团队土壤修复一线从业经验,提出了未来重点研究方向的建议。Abstract: The remediation of contaminated soil is an important way for human beings to improve the quality of the ecological environment, which has attracted more and more attention. In this study, the relevant literature on global soil remediation in the past ten years (2011 to 2020) was analyzed using the software of CiteSpace and VOSviewer as the bibliometric tool based on the literature data source of the Web of Science database, and the global research status and future development trend were also discussed. The results showed that the number of publications on contaminated soil remediation grew rapidly over the study period. The five countries with the most published papers included China, the United States, Australia, Germany, and France. The main journals that published foreign literature included Environmental Science and Pollution Research, Chemosphere, Science of the Total Environment, etc. In terms of the number and the cited frequency of publications for foreign literature, Chinese scientific research institutions occupied an important position, indicating that China had a strong international academic influence in contaminated soil remediation. Through the analysis of keywords occurrence, it was found that heavy metals, bioavailability, lead, phytoremediation, bioremediation, immobilization, risk assessment and polycyclic aromatic hydrocarbons were the main focuses of the research in recent ten years. Using the highlighting key statistics functions, it was found that risk assessment, the spatial distribution of pollution factors, soil microbial community and biochar were gradually becoming the new research hotspots in the world. Finally, some suggestions for the key research directions in future were given combined with the author's engineering experience in soil remediation.
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Key words:
- contaminated soil /
- soil remediation /
- heavy metal /
- bioremediation /
- phytoremediation
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