Planting woody crops on dredged contaminated sediment provides both positive and negative effects in terms of remediation
Article
Hartley, W., Riby, P., Dickinson, N., Shutes, B., Sparke, S. and Scholz, M. 2011. Planting woody crops on dredged contaminated sediment provides both positive and negative effects in terms of remediation. Environmental Pollution. 159 (12), pp. 3416-3424. https://doi.org/10.1016/j.envpol.2011.08.030
Type | Article |
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Title | Planting woody crops on dredged contaminated sediment provides both positive and negative effects in terms of remediation |
Authors | Hartley, W., Riby, P., Dickinson, N., Shutes, B., Sparke, S. and Scholz, M. |
Abstract | There is currently a requirement for studies focusing on the long-term sustainability of phytoremediation technologies. Trace element uptake by Salix, Populus and Alnus species planted in dredged contaminated canal sediment and concentrations in sediment and pore waters were investigated, eight years after a phytoremediation trial was initiated in NW England. Soil biological activity was also measured using invertebrate and microbial assays to determine soil quality improvements. Zinc was the dominant trace metal in foliage and woody stems, and the most mobile trace element in sediment porewater (~14 mg l−1). Biological activity had improved; earthworm numbers had increased from 5 to 24, and the QBS index (an index of microarthropod groups in soil) had increased from 70 to 88. It is concluded that biological conditions had improved and natural processes appear to be enhancing soil quality, but there remains a potential risk of trace element transfer to the wider environment. |
Publisher | Elsevier |
Journal | Environmental Pollution |
ISSN | 0013-9327 |
Publication dates | |
Dec 2011 | |
Publication process dates | |
Deposited | 21 Mar 2012 |
Output status | Published |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.envpol.2011.08.030 |
Language | English |
https://repository.mdx.ac.uk/item/8392q
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