The Research of Soil and Natural Colonized Plants in Lead-Zinc Tailings of Huize

In order to select adaptable plants in lead-zinc tailings of Huize, tailings soil and natural colonized plants on tailings were researched. The results showed that Cd polluted badly soil, the content of Cd in lead-zinc tailings soil of Huize was 515.19 times of natural soil in Yunnan; Pb and Zn were major factor of pollution in tailings, the content of Pb and Zn in lead-zinc tailings soil were 120.92 and 78.44 times of natural soil in Yunnan. The heavy metal content have decreased with prolonging accumulation time, and the heavy metal content of tailings edge is significantly lower than the center. There were a lot of natural colonized species on lead-zinc tailings of Huize, ten species were dominant. The ten species were far way from critical levels for hyper accumulator, but could grow under heavy metals stress and have a high tolerance to Pb and Zn, so can be considered as pioneer plants of revegetation in lead-zinc tailings of Huize.