Abstract
Mine tailings is composed of mineral sands and gravel,which usually contains considerable heavy metals[1]. The plants growing in mine tailings area usually have a certain tolerance for heavy metals.According to analyzed the Zoysia sinica Hance and Rumex crispus in the upper reaches of Jialing river, discussed how local environment effect the resistance, migration, transport for heavy metals Pb, Zn, Cu, Cd. The results show that the heavy metal Pb in Zoysia sinica Hance is leaf>root,the heavy metals Zn,Cu,Cd in Zoysia sinica Hance is root>leaf,and the proportion of heavy metal in leaf and root remain stability and keep positive correlation between each other. Zoysia sinica has strong resistance and accumulation for heavy metals Pb, Zn, Cu.Especially it has potential accumulation for Pb, and poor accumulation for Cd.The heavy metal Zn,Cd in Rumex crispus is leaf>root,but for Pb and Cu is root>leaf.Rumex crispus has a certain accumulation for Pb,Zn and Cu,and has a poor accumulation for Cd.Zoysia sinica Hance and Rumex crispus show resistance to various heavy metals and has accumulation for some heavy metals, Zoysia and crispuscan can be used for repairing the soil of mining district or can be used for Soil recovery.
Published Version
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