Abstract:
The purpose of this study is to analyze the research progress, hot spots and frontiers in the field of remediation of soil pollution by
Brassica juncea at home and abroad in the past 21 years, to clarify the development trend of this field, combine with the current soil remediation technology, and propose perspectives that can be further discussed, in order to provide reference for subsequent scholars to conduct in-depth research. The research papers in the database of China National Knowledge Infrastructure (CNKI) and Web of Science (WoS) were taken as samples, and CiteSpace and VOSviewer visual mapping software were used to analyze the literatures published between 2000 and 2021 on the remediation of soil pollution by
Brassica juncea.The analysis mainly focuses on the quantitative analysis of the publishing institution, subject category, published journal, author coupling, literature co-citation, keywords and keyword highlighting. ① The number of published papers in international journals showed a trend of rapid growth, while this number in domestic journals increased first and then decreased. ② The main publishers were Aligarh Muslim Univ, Indian Agr Res Inst and Agr&Agri Food Canada. ③ The research in this field covered many disciplines such as agriculture, environmental science and horticulture. The main publications include Plant Physiology, Plant and Soil, Soils and Acta Pedologica Sinica , etc. ④ There was a strong correlation among the core author groups of the literature, and the cumulative citation times of the papers of Belimov and Jiang Xianjun were relatively higher, indicating that the relevant research of the two scholars has received high attention. ⑤ The key words of the relevant studies at home and abroad converged, and the research hotspots mainly focused on the remediation of heavy metal Cd-contaminated soil. Future research on
Brassica juncea remediation of soil contamination is focused on Cd contamination remediation. The in-depth research will be carried out from the perspectives of chelator-induced or PGR in combination with chelator to enhance
Brassica juncea remediation of soil Cd contamination,
Brassica juncea intercropping with other plants, bioengineering to enhance plant treatment and heavy metal plant biomass disposal. In addition, more emphasis will be placed on interdisciplinary research and the impact on the soil environment.