Phytoextraction of risk elements by willow and poplar trees
Language English Country United States Media print
Document type Evaluation Study, Journal Article, Research Support, Non-U.S. Gov't
- Keywords
- cadmium, contaminated soil, copper, phytoextraction, poplar, willow, zinc,
- MeSH
- Biodegradation, Environmental MeSH
- Cadmium analysis metabolism MeSH
- Soil Pollutants analysis metabolism MeSH
- Copper analysis metabolism MeSH
- Populus chemistry metabolism MeSH
- Environmental Restoration and Remediation instrumentation methods MeSH
- Salix chemistry metabolism MeSH
- Trees chemistry metabolism MeSH
- Zinc analysis metabolism MeSH
- Publication type
- Journal Article MeSH
- Evaluation Study MeSH
- Research Support, Non-U.S. Gov't MeSH
- Names of Substances
- Cadmium MeSH
- Soil Pollutants MeSH
- Copper MeSH
- Zinc MeSH
To characterize the phytoextraction efficiency of two clones of willow trees (Salix x smithiana Willd., Salix rubens) and two clones of poplar trees (Populus nigra x maximowiczii, Populus nigra Wolterson) were planted in contaminated soil (0.4-2.0 mg Cd.kg(-1), 78-313 mg Zn.kg(-1), 21.3-118 mg Cu.kg(-1)). Field experiment was carried out in Czech Republic. The study investigated their ability to accumulate heavy metals (Cd, Zn, and Cu) in harvestable plant parts. The poplars produced higher amount of biomass than willows. Both Salix clones accumulated higher amount of Cd, Zn and Cu in their biomass (maximum 6.8 mg Cd.kg(-1), 909 mg Zn.kg(-1), and 17.7 mg Cu.kg(-1)) compared to Populus clones (maximum 2.06 mg Cd.kg(-1), 463 mg Zn.kg(-1), and 11.8 mg Cu.kg(-1)). There were no significant differences between clones of individual species. BCs for Cd and Zn were greater than 1 (the highest in willow leaves). BCs values of Cu were very low. These results indicate that Salix is more suitable plant for phytoextraction of Cd and Zn than Populus. The Cu phytoextraction potential of Salix and Populus trees was not confirmed in this experiment due to low soil availability of this element.
References provided by Crossref.org
Non-enhanced phytoextraction of cadmium, zinc, and lead by high-yielding crops
