Phytoremediation of Zinc with Native Rangeland Plants in Irankoh Region

Document Type : Research Paper

Authors

1 Expert, Agricultural and Natural Resources Research Center of Isfahan

2 Researcher, Agricultural and Natural Resourees Research center of Isfahan

3 Researcher, Agricultural and Natural Resourcos Research Center of Isfahan

Abstract

Soil contamination of heavy metal, is one of the main problem in the world today. Recently, hyperaccumulation plants are mostly used to clean the polluted soil. A field study in 3 sites with 3 concentrations of zinc (high, medium and low) was carried out in Bama mine, Irankoh region. Having analyzed the soil physical and chemical properties, 11 ranged-land plant species were selected among 7 families. The experiment was done in completely randomized design with 3 replicates. Soil rhizosphers, however, were analyzed in order to determine the zinc absorption forms by plants. Bioaccumulation, tolerance index and translocation factor of zinc were studied. According to the results Ebenus estellata and Astragalus glucanthus were the most appropriate selected plants with 293.3 and 195.1 mg/kg bioaccumulation in shoot and 5.72 and 6.46 translocation factor respectively

Keywords

References

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Iranian Journal of Soil Research
Volume 21, Issue 2
February 2008
Pages 229-239

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