Analysis of hot topics in soil remediation research based on VOSviewer

Abstract Through the cluster analysis of the keywords and draw scientific knowledge map by VOSviewer in the field of soil remediation in order to further explore the hot topics of soil remediation research. The results were analyzed by manual analysis. The key words in the field of soil remediation research were divided into 4 topic groups. They are in the field of heavy metal pollution, chemical remediation technology, bioremediation technology, and electric remediation technology. The hot topic in the field of soil remediation research is mainly “heavy-metals”, “removal”, “bioremediation”, “degradation”, “biodegradation”, “phytoremediation”, “contaminated soil”, “water”, “cadmium”, “polycyclic aromatic-hydrocarbons”, “adsorption”, “lead”, and “sorption”, “bioavailability”, “extraction.