重金属污染土壤木本-草本联合修复研究进展

植物修复是一种新型的重金属污染土壤修复技术，由于原位修复、费用低、太阳能驱动等优点而成为研究者关注的热点。但是，植物修复技术目前仍存在重金属生物有效态含量低和修复植物生物量小的2个制约因子，寻找新的环境友好活化剂和具有高萃取率的植物修复模式是研究者必须解决的技术瓶颈。笔者在国内外研究文献的基础上，总结了木本、草本植物在重金属土壤污染修复方面的已有研究，并结合生态位理论，分析了木本-草本联合修复在土壤重金属污染治理中的可行性，提出了木本-草本联合修复尚需解决的科学问题。

The Research Progress of Joint Remediation of Heavy Metal Contaminated Soil by Using Woody-weed Plant

Phytoremediation was a novel,solar-driven,in-situ and cost-effective technology for the remediation of heavy metal contaminated environments,and became a hot topic in recent years which attracts scholars.But low heavy metal bioavailability and small biomass of hyper accumulators limits application of phytoremediation technology.Finding natural environment-friendly clelator and plant remediation system with high extraction efficiency will help break through the bottlenecks of phytoremediation.On the basis of analyzing and summing up the relative literatures,and combining the theory of ecological niche and phytoremediation,the author discussed remediation ability of woody,weed plant in heavy metal contaminated soil,and analyzed the feasibility of woody-weed plant joint remediation,presented a new development direction of phytoremediation.