Phytoremediation and its mechanisms for contaminated soils
污染土壤植物修复技术及其机理研究

This paper introd uces the application efficacy of phytore mediation in hydrocarbon and metal conta minated soils,and discusses the key mech anisms of uptake,accumulation,degradatio n,inhibition and transformation of petro leum hydrocarbons and/or metals in plant s.Problems,limitations and key tache are also addressed.It is concluded that the degradation and inhibition of petroleum hydrocarbons in the rhizosphere of plan ts are the primary loss mechanism for th ese compounds,and stabilization and accu mulation are the key processes for metal clean up.