Heavy metal distribution, bioaccumulation and translocation characteristics of fourteen plants

This paper focused on the distribution, bioaccumulation and translocation of heavy metal from soil to plants. Based on the concentrations of heavy metals, including Cu, Cd, Pb and Zn, determined by atomic absorption spectrophotometry, fourteen typical plants were studied in the Qingshuitang heavy metals polluted area in Zhuzhou. The results showed that these species had promising prospects on repairing combined heavy metals soil pollution. More specifically, the bioconcentration factor and transfer factor about Aristolochia debilis to Cu, Pb, Cd and Zn, Clerodendrum bungei and Sambucus chinensis to Pb, Cd and Zn, Lagedium sibiricum to Pb and Zn, Setaria viridis and Cynanchum auriculatum to Cd and Alternanthera philoxeroides to Cu were all greater than 1. These plants could apply on the heavy metal pollution regions as pioneer plants.