+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Seasonal changes of metals in willow (Salix sp.) stands for phytoremediation on dredged sediment



Seasonal changes of metals in willow (Salix sp.) stands for phytoremediation on dredged sediment



Environmental Science and Technology 40(6): 1962-1968



Fast growing biomass plants such as Salix species are promising for use in phytoremediation of contaminated land. This study assessed the seasonal variations and changes with stand age in metal concentrations of S. fragilis L. and S. triandra L. grown in field conditions on contaminated dredged sediment substrates with comparable properties. A lesser proportion of total soil Cd was extractable by ammonium-acetate in the 6-year-old stand (6%) compared to the 1-year-old stand (17%). This suggests that the potential to remove metals from the site declines with tree age. Metal concentrations in willow biomass compartments decreased with stand age. Concentrations of Cd and Zn in leaves, wood, and bark increased toward the end of the growing season, irrespective of the species. Only Cd behavior offered limited prospects for targeting effective removal of the metal from the sediment through repeated harvest. The most efficient removal of Cd would require the combined harvest of stems and leaves; at the same time the risk of spreading Cd and Zn to the surroundings with leaf fall would be avoided.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 004525270

Download citation: RISBibTeXText

PMID: 16570622

DOI: 10.1021/es051225i


Related references

Physiological and proteomic responses of different willow clones (Salix fragilis x alba) exposed to dredged sediment contaminated by heavy metals. International Journal of Phytoremediation 16(7-12): 1148-1169, 2014

A field study on phytoremediation of dredged sediment contaminated by heavy metals and nutrients: the impacts of sediment aeration. Environmental Science and Pollution Research International 21(23): 13452-13460, 2014

Phytoremediation prospects of willow stands on contaminated sediment: a field trial. Environmental Pollution 126(2): 275-282, 2003

Transpiration of two willow species (Salix viminalis and Salix triandra) growing on a landfill of dredged sludge. Silva Gandavensis ( 61): 33-45, 1996

Availability of heavy metals for uptake by Salix viminalis on a moderately contaminated dredged sediment disposal site. Environmental Pollution 137(2): 354-364, 2005

Effects of willow stands on heavy metal concentrations and top soil properties of infrastructure spoil landfills and dredged sediment-derived sites. Science of the Total Environment 407(20): 5289-5297, 2009

Effects of contaminated soil on the growth performance of young Salix (Salix schwerinii E. L. Wolf) and the potential for phytoremediation of heavy metals. Journal of Environmental Management 183(Pt 3): 467-477, 2016

Utilization of willow (Salix sp.) in phytoremediation. Journal of Jiangsu Forestry Science and Technology 33(2): 40-43, 2006

Phytoremediation of metals contaminated dredged sediments; use of synthetic chelates in metals phytoextraction. Journal de Physique IV, 2003

Phytoremediation of dredged marine sediment: monitoring of chemical and biochemical processes contributing to sediment reclamation. Journal of Environmental Management 134: 166-174, 2014

Performance of willow clones on Sharkey clay Salix nigra, Salix exigua, Salix argentinensis, Salix babylonica X Salix alba, interspecific hybrids, selection, Mississippi. US Forest Service research note SO United States Southern Forest Experiment Station: 83 (293), 1983

The economic value of the phytoremediation function - Assessed by the example of cadmium remediation by willow (Salix ssp). Agricultural systems 89(1): 68-89, 2006

The occurrence of the willow shot-hole midge (Helicomyia saliciperda Dufour (Cecidomyidae)) on white willow (Salix alba Linnaeus) and funeral willow (Salix alba var. vitellina-pendula Rehder). Zeitschrift fur Angewandte Entomologie 87(2): 203-215, 1979

Phytoremediation of a contaminated dredged canal sediment. 2003