Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2019, Vol. 35 ›› Issue (36): 80-84.doi: 10.11924/j.issn.1000-6850.casb18070105

Special Issue: 土壤重金属污染 油料作物

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Oil Crops Remediate Heavy Metal-contaminated Farmland Soil: A Review

  

  • Received:2018-07-23 Revised:2019-11-29 Accepted:2018-10-25 Online:2019-12-26 Published:2019-12-26

Abstract: Soil is of great importance to human through supplying agricultural products. However, with the rapid development of human activities, soil heavy metal pollution has become a severe problem, and the area of polluted soil is continuously expanding. Phytoremediation has become a research hotspot in the field of soil environment protection because it is cost- effective and eco- friendly. Remediation of heavy metalcontaminated soil using oil crops can effectively reduce heavy metals in soil, recover soil qualities, and provide some oil products. Also, oil crops as remediating plants are easy to be promoted among farmers. In this review, we described the remediation effect of commonly used oil crops on heavy metal-contaminated farmland soil as well as the techniques to deal with plant residues after harvest. The technique of fly ash melt treatment on plant residues could avoid secondary pollution of heavy metal, and realize the reutilization of resources. Finally, the research prospect of oil crops on restoration of heavy metal-polluted soil was discussed.

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