2) The total heavy metal translocation of Bidens maximowicziana and Rumex acetosa, (10.5 mg and 9.9 mg, respectively) are higher than the other four plants.

• 2 )随着Pb处理浓度的增加 ；羽叶鬼针草地上部迁移总量在Pb处理浓度为 5时高达 11.；2 9mg；酸模在Pb处理浓度为 6时地上部迁移总量为 9