化学方法强化园林植物修复镉污染土壤的研究进展

Research Progress on Chemical Methods to Strengthen Landscape Phytoremediation of Cadmium-contaminated Soil

植物修复技术以其修复的彻底性和环境友好性逐渐成为污染土壤修复的有效方法之一。在总结当前园林植物修复研究现状的基础上,结合园林植物自身的特性,阐述了园林植物在修复重金属污染土壤中的技术优势,建议通过采用不同化学方法改善重金属在土壤中的存在形态,提高园林植物对重金属离子的富集和转运作用,同时强化园林植物的耐性,以进一步提高园林植物对重金属污染土壤的修复效果,为大规模治理重金属污染土壤和商业化应用提供技术途径和科学依据。

Phytoremediation technology has gradually become one of the effective methods for remediation of contaminated soil with its thoroughness and environmental friendliness.Based on the summary of the current research status of landscape phytoremediation,combining with the characteristics of landscape plants,the technical advantages of landscape plants in remediation of heavy metal contaminated soil are expounded.It is suggested that different chemical methods are used to improve the existing forms of heavy metals in soil,enhance the enrichment and translocation of heavy metal ions in landscape plants,and strengthen the tolerance of landscape plants to further improve the remediation effect of landscape plants on heavy metal contaminated soil,and provide technical approaches and scientific basis for large-scale treatment of heavy metal contaminated soil and commercial application.