重金属污染土壤的园林植物修复技术及其应用研究进展

Remediation Technology and Its Application of Landscape Plants for Heavy Metal Contaminated Soil

工业、农业和交通等来源引起的土壤重金属污染问题日益突出,土壤环境质量形势严峻,污染土壤的生态修复与治理已然成为亟待解决的科学问题。植物修复技术是修复重金属污染土壤的一种有效途径。基于园林植物对重金属元素的富集和吸收作用,植物修复技术具有经济、生态、环保、对环境破坏力度小、美化环境等优势,已成为众多学者关注的研究热点。文章通过查阅文献资料,对近年园林植物修复重金属污染土壤领域的研究成果进行了梳理与阐述,从园林植物修复土壤重金属的技术、重金属富集园林植物的筛选、植物修复技术的联合应用等方面进行了总结归纳和分析,同时对植物修复土壤重金属污染的发展前景进行了展望。

The environmental problem of soil heavy metal pollution caused by industry,agriculture,transportation,etc.is becoming increasingly prominent.The situation of soil environmental quality is severe,and ecological remediation and treatment of polluted soil have become an urgent scientific problem to be solved.Phytoremediation technology is considered as an effective approach to remediation of soils contaminated by heavy metals.Based on the enrichment and absorption of heavy metal elements by landscape plants,phytoremediation technology has become a research focus of scholars for its advantages in economy,ecology,environmental protection,small damage to the environment and beautification of the environment.In this paper,the landscape phytoremediation of heavy metal contaminated soil in recent years and the research achievements in the field were studied by summarizing and analyzing the consult literature in the following aspects:1)landscape plant repairing technology of soil heavy metal,2)heavy metal enrichment of landscape plant selection,3)joint application of phytoremediation technology.The development prospect of phytoremediation of soil heavy metal pollution was prospected.