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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/1543

Title: Phytostabilization of a metal contaminated sandy soil. I: Influence of compost and/or inorganic metal immobilizing soil amendments on phytotoxicity and plant availability of metals
Authors: RUTTENS, Ann
Mench, M.
COLPAERT, Jan
Boisson, J.
CARLEER, Robert
VANGRONSVELD, Jaco
Issue Date: 2006
Publisher: Elsevier
Citation: ENVIRONMENTAL POLLUTION, 144(2). p. 524-532
Abstract: In a lysimeter set-up, compost addition to an industrial contaminated soil slightly reduced phytotoxicity to bean seedlings. The “Phytotoxicity Index” (on a scale from 1 to 4) decreased from 3.5 to 2.8. The same treatment also reduced metal accumulation in grasses: mean Zn, Cd and Pb concentrations decreased respectively from 623 to 135, from 6.2 to 1.3 and from 10.7 to <6 mg kg−1 dry weight. When combined with inorganic metal immobilizing amendments, compost had a beneficial effect on plant responses additional to the inorganic amendments alone. Best results were obtained when using compost (C) + cyclonic ashes (CA) + steel shots (SS). The “Phytotoxicity Index” decreased to 1.7, highest diversity of spontaneously colonizing plants occurred, and metal accumulation in grasses reduced to values for uncontaminated soils. Based on the first year evaluation, C + CA + SS showed to be an efficient treatment for amendment assisted phytostabilization of the contaminated Overpelt soil.
URI: http://hdl.handle.net/1942/1543
DOI: 10.1016/j.envpol.2006.01.038
ISI #: 000241574700020
ISSN: 0269-7491
Category: A1
Type: Journal Contribution
Validation: ecoom, 2007
Appears in Collections: Research publications

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