Heavy metal pollution is an important environmental problem in global.This paper discussed the effects of three plant roots as low level absorption plant,common plant and hyper-accumulative plant on the heavy metal transporting in soil by the mumerical simulation.In the initial stage,the contamination degree of soil columns with plant was higher than soil column without plant.As pollution went on,the contamination degree of soil column with super-accumulative plant was lower then that of soil column without...