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Bibliometrics-Based: Trends in Phytoremediation of Potentially Toxic Elements in Soil

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  • Yu-Le Zhang

    (College of Agriculture, Guizhou University, Guiyang 550025, China
    New Rural Development Research Institute, Guizhou University, Guiyang 550025, China)

  • Guan-Di He

    (College of Agriculture, Guizhou University, Guiyang 550025, China
    New Rural Development Research Institute, Guizhou University, Guiyang 550025, China)

  • Ye-Qing He

    (College of Agriculture, Guizhou University, Guiyang 550025, China
    New Rural Development Research Institute, Guizhou University, Guiyang 550025, China)

  • Teng-Bing He

    (College of Agriculture, Guizhou University, Guiyang 550025, China
    New Rural Development Research Institute, Guizhou University, Guiyang 550025, China)

Abstract

Land purity is of central importance to crop production. The accumulation of toxic elements in soil seriously affects crop safety. Phytoremediation is a widely used technology to clean soil pollution because of its low cost, simple implementation, and lack of secondary pollution. This investigation includes data from 4787 articles on phytoremediation of heavy metals in soil from the period between 2008 and 2021, acquired from Web of Science databases. VOSviewer was utilized to conduct statistical analysis of countries (regions), institutions, journals, cited literature, and keywords. According to the statistical data, the use of phytoremediation for cleaning soil with heavy metals has matured in recent years, showing a trend of rapid growth. There were also few collaborative studies on this subject between institutions, and China has the most extensive research in this field and, therefore, has the highest number of publications, followed by India and the United States. Publications from Pakistan are very in-depth and have the highest average number of citations. It was discovered that many researchers are now publishing articles on Environmental Science and Pollution Research. Chemosphere was revealed as the most influential journal, whereas The Journal of Hazardous Materials was the most cited. In-depth research on keywords such as metal enrichment, super-enrichment plants, phytoremediation, Cd, Pb, etc. have been conducted by many scientists; however, the research content for different countries was different. The review analysis revealed that in the future it will be possible to breed trees with high heavy metal accumulation, or to use transgenic plants and ornamental plants with high tolerance to prevent and control heavy metal pollution in soil. This paper aims to provide references for scholars in this field and to allow them quick access to summarized knowledge on this topic.

Suggested Citation

  • Yu-Le Zhang & Guan-Di He & Ye-Qing He & Teng-Bing He, 2022. "Bibliometrics-Based: Trends in Phytoremediation of Potentially Toxic Elements in Soil," Land, MDPI, vol. 11(11), pages 1-16, November.
    • Handle: RePEc:gam:jlands:v:11:y:2022:i:11:p:2030-:d:971414
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    References listed on IDEAS

    as
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