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Investigation the absorption capability of cadmium, chrome and nickel, by Populus alba species from polluted soil
کد مقاله : 1230-ERTC
نویسندگان:
مریم رفعتی *1، معصومه حیدری2
1پونک،35 متری گلستان،ایران زمین شمالی،ک گاز،ک یاس،پ 15، ط1
2همدان-میدان شیر سنگی- 18 متری لاله- مجتمع کاشانه آریای 1- واحد 1
چکیده مقاله:
Abstract: Phytoremediation utilizes plants to uptake contaminants and can potentially be used to remediate metal-contaminated sites. The present study investigates heavy metal uptake (Cd, Cr, and Ni) from soil by different organs of Populus alba. For this purpose, Cd (40, 80, and 160 mg/kg), Cr (60, 120, and 240 mg/kg) and Ni (120, 240, and 480 mg/kg) were added to the soil in pot experiments. The total concentration of these metals was measured in the roots, stems, green leaves, fallen leaves, and the corresponding soil. Our results show that the highest accumulation of all studied metals was found in the green leaves for Ni and the fallen leaves for Cd and Cr in P. alba when compared to the green leaves. Also in this species, Cd and Ni did not transport from the leaves to the roots and stems, or vice versa, in the fall season, but Cr was transported from the roots and stems to the leaves in the 240 and 480 mg/kg treatments.
کلیدواژه ها:
Keywords: cadmium, chrome , nickel, phytoremediation
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