重金属污染农田土壤的稳定化修复技术及其修复实践研究

以中国知网及Web of Science 数据库的文献资料为数据源，利用CiteSpace 文献计量工具，对2000 ~ 2021年农田土壤重金属污染修复研究领域的相关中外文文献从发文量、发文国家及作者、关键词等进行分析，以此探讨国内外该领域研究现状及未来发展驱势。结果表明，农田土壤重金属污染修复研究文献数量呈快速增长态势，中国、美国、韩国等是外文文献发文量较多的国家；中国科研机构在外文文献发文数量上所占比重最大，表明我国在该领域对国际学术的影响力较大；从关键词出现频次分析可知，当前该领域主要研究内容是土壤镉、铅等多种金属的复合污染的累积特征及重金属复合污染的修复，而植物修复技术在农田土壤重金属污染修复研究中的应用是当前该领域研究热点；未来土壤重金属污染修复领域的主要研究方向为物理、化学联合生物等多种修复技术组成的综合修复体系。

Trace elements in the soil - plant interface: Phytoavailability,translocation, and phytoremediation - A review

Based on the literature of China National Knowledge Infrastructure (CNKI) and Web of Science database, CiteSpace bibliometric tool was used to analyze the relevant literature in the field of remediation of heavy metal pollution in farmland soil from the aspects of number of publications, countries, authors and keywords from 2000 to 2021, so as to explore the research status and future development trend in this field at home and abroad. The results showed that the number of literatures on heavy metal pollution remediation in farmland soil increased rapidly. China, the United States and South Korea were the countries with more foreign literatures. Chinese scientific research institutions occupied an important position in the number of foreign literature publications, indicating that China has a strong international academic influence in this research field. According to the frequency analysis of keywords, the accumulation characteristics and remediation of multi-metal compound pollution such as cadmium and lead in soil were the main research contents in this field, and the application of phytoremediation technology in the remediation of heavy metal pollution in farmland soil was a hot topic in this field. The comprehensive remediation system composed of physical and chemical remediation combined with bioremediation technology is the main research direction in the field of soil heavy metal pollution remediation in the future.