Distribution Characters of Cu and Zn in Soil Compositae System in Xishan Hill of Kunming.
Yin Caixia et al (Department of Chemistry, Yunnan Universtiy, KUNMING 650091)
Contents and distributions of Cu and Zn in soil compositae system in Xishan Hill of
Kunming were studied. Based on parameters of statistical analysis and absorption coefficients,
levels of Cu and Zn contents were described quantitatively, and abilities of absorption and
enrichment were also presented.Relative absorption coefficients of Cu in compositae except
Suassurea japonica were tested to be lower than 1, which showed cushioning effects of Cu in
the soil. Enrichment abilities of Zn were showed in Vernonia esculenta, Thylophora
yunnanensis, Suassurea japonica and Crepis rigescens, but cushioning effects of Zn were
found in other plants.
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