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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/26606

Title: Limitations for phytoextraction management on metal-polluted soils with poplar short rotation coppice-evidence from a 6-year field trial
Authors: Michels, Evi
Annicaerta, Brecht
De Moor, Sofie
Van Nevel, Lotte
De Fraeye, Matthias
Meiresonne, Linda
Vangronsveld, Jaco
Tack, Filip M. G.
Ok, Yong Sik
Meers, Erik
Issue Date: 2018
Publisher: TAYLOR & FRANCIS INC
Citation: INTERNATIONAL JOURNAL OF PHYTOREMEDIATION, 20(1), p. 8-15
Abstract: Poplar clones were studied for their phytoextraction capacity in the second growth cycle (6-year growth) on a site in the Belgian Campine region, which is contaminated with Cd and Zn via historic atmospheric deposition of nearby zinc smelter activities. The field trial revealed regrowth problems for some clones that could not be predicted in the first growth cycle. Four allometric relations were assessed for their capacity to predict biomass yield in the second growth cycle. A power function based on the shoot diameter best estimates the biomass production of poplar with R-2 values between 0.94 and 0.98. The woody biomass yield ranged from 2.1 to 4.8 ton woody Dry Mass (DM) ha(-1) y(-1). The primary goal was to reduce soil concentrations of metals caused by phytoextraction. Nevertheless, increased metal concentrations were determined in the topsoil. This increase can partially be explained by the input of metals from deeper soil layers in the top soil through litterfall. The phytoextraction option with poplar short rotation coppice in this setup did not lead to the intended soil remediation in a reasonable time span. Therefore, harvest of the leaf biomass is put forward as a crucial part of the strategy for soil remediation through Cd/Zn phytoextraction.
Notes: [Michels, E.; De Moor, S.; De Fraeye, M.; Tack, F. M. G.; Meers, Erik] Univ Ghent, Lab Analyt Chem & Appl Ecochem, Dept Appl Analyt & Phys Chem, Ghent, Belgium. [Van Nevel, L.] Univ Ghent, Forest & Nat Lab, Dept Forest & Water Management, Gontrode, Belgium. [Meiresonne, L.] Inst Nat & Bosonderzoek, Geraardsbergen, Belgium. [Vangronsveld, J.] Hasselt Univ, Ctr Environm Sci CMK, Campus Diepenbeek, Diepenbeek, Belgium. [Ok, Y. S.] Univ Ghent, Global Campus, Incheon, South Korea. [Ok, Y. S.] Kangwon Natl Univ, Sch Nat Resources & Environm Sci, Chunchon, South Korea.
URI: http://hdl.handle.net/1942/26606
DOI: 10.1080/15226514.2016.1207595
ISI #: 000426922300002
ISSN: 1522-6514
Category: A1
Type: Journal Contribution
Appears in Collections: Research publications

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