Abstract:
In order to gain a deeper understanding of the research status of soil heavy metal restoration in related fields, the literature measurement method was adopted in this paper, by taking the domestic academic papers included in the CNKI database from 1999 to 2019 as the research object, and taking SU=‘soil heavy metal’ AND SU=‘repai’ as the subject headings, the literatures in the field of soil heavy metal restoration in the past 20 years were systematically analyzed from the aspects of the annual number of published papers, fund source, the number of published papers by author, highly cited papers and keywords. The results showed that a total of 3793 valid documents have been retrieved, with a total of 6895 authors. The annual number of articles published increased rapidly, and the top three authors were Zhou Jing, Wu Longhua and Qiu Xueliang. From the perspective of fund source, the National Natural Science Foundation of China subsidized the largest number of papers with 611. From the perspective of highly cited papers and keywords, the use of plant remediation was a research hotspot for the soil heavy metal pollution remediation. The remediation of soil contaminated by cadmium and lead was the research focus, and the remediation of soil contaminated by heavy metals through biochar was the future development direction.