Publication Date:
2014-01-01
Description:
The potential ofSalix viminalisL. andIgniscum sachalinensisL. for phytoremediation of copper- (Cu-) contaminated soils was studied under greenhouse conditions. Approximately 5 kg of potted agricultural and sewage amended soils sampled from the top 0 to 20 cm depth in Neuruppin, Germany, was treated with CuSO4at concentrations 0 (control), 250, 750, and 1250 mg Cu kg−1soil and ethylenediaminetetraacetic acid (EDTA) at 1000 mg kg−1soil, respectively. Each plant species was grown on four replicates of each soil treatment. Copper accumulated in aboveground tissues tends to increase with increasing soil Cu concentration and was the lowest in stem and leaf of both plant species grown on control soils. At 750 and 1250 mg Cu kg−1soil, Cu accumulated in stem and leaf ofI. sachalinensisincreased by over 12- and 20-fold, respectively, whereas there was no vegetative growth inS. viminalisbeyond 250 mg Cu kg−1soil. Application of EDTA to sewage amended soils increased Cu accumulated in the stem and leaf, especially inI. sachalinensis. In general,I. sachalinensisseems to have the potential to tolerate high soil Cu content and simultaneously bioaccumulate Cu in tissues and thus may have better prospects for phytoremediation.
Print ISSN:
1687-7667
Electronic ISSN:
1687-7675
Topics:
Geosciences
,
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
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