Abstract: There is an increasing organic pollution in the environment, because human being is more and more relying on chemicals. Phytoremediation of organic pollutants-contaminated soils is an on-site remediation technology based on the plant absorption, degradation, and passivation of organic pollutants, and characterized by low-cost, low-risk, and low side-effect to the environment. In this paper, some recent research advances in phytoremediation of organic pollutants-contaminated soils both at home and abroad were summarized, with the focus on the phytoremediation of PCBs, PAHs, pesticides, and nitrylaromatic compounds. The key mechanisms of phytoremediation for soils contaminated by organic pollutants were expounded, and the limitations of this technology as well as the affecting factors that should be considered in an actual project were analyzed. Future directions of this research field were pointed out.

Key words: Soil microbial biomass, Soil enzyme activity, Fertilization