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Chinese Agricultural Science Bulletin ›› 2013, Vol. 29 ›› Issue (11): 151-157.doi: 10.11924/j.issn.1000-6850.2012-3820

Special Issue: 土壤重金属污染

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Heavy Metal Distribution of Typical Plant in Xiawan Harbor of Zhuzhou

  

  • Received:2012-11-26 Revised:2013-01-05 Online:2013-04-15 Published:2013-04-15

Abstract: The author collected 14 kinds of typical plants and soil in Xiawan harbor of Zhuzhou City, researched the distribution of heavy metals in plants, pollution, migration and accumulation, and found the characteristics of different typical plants in heavy metal pollution regional, with a view to provide reference for plants restoration in heavy metal pollution area. With potential ecological risk index method to evaluate the soil heavy metal pollution, according to the bioconcentration factor and transfer coefficient of heavy metals in plants to know the distribution and transformation. The results showed that: the majority of soil heavy metal elements content were apparent on the high side, potential ecological risk in the following order: Eir(Cd)>Eir(Pb)>Eir(Cu)>Eir(Zn), among which Cd was the most serious. The heavy metal content was different in different parts of plants. In the three parts, Zn was the highest, followed by Pb. Pokeberry root, Melia azedarach and Pueraria lobata on Cu, Cd, Pb, Zn accumulation ability was very strong, could be used as heavy metals enrichment plants to control the four kinds of polluted soil. Cynanchum auriculatum and Chenopodiaceae could have certain effect on Cu, Pb, Zn; Aristolochiadebilis and Clerodendrum bungei could be used as heavy metal pollution reference plant of ecological management on Cd, Pb, Zn.