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Research article2017Peer reviewedOpen access

Assessing phytotoxicity of trace element-contaminated soils phytomanaged with gentle remediation options at ten European field trials

Quintela-Sabaris, Celestino; Marchand, Lilian; Kidd, Petra S.; Friesl-Hanl, Wolfgang; Puschenreiter, Markus; Kumpiene, Jurate; Mueller, Ingo; Neu, Silke; Janssen, Jolien; Vangronsveld, Jaco; Dimitriou, Ioannis; Siebielec, Grzegorz; Galazka, Rafai; Bert, Valerie; Herzig, Rolf; Cundy, Andrew B.; Oustriere, Nadege; Kolbas, Aliaksandr; Galland, William; Mench, Michel

Abstract

Gentle remediation options (GRO), i.e. in situ stabilisation, (aided) phytoextraction and (aided) phytostabilisation, were implemented at ten European sites contaminated with trace elements (TE) from various anthropogenic sources: mining, atmospheric fallout, landfill leachates, wood preservatives, dredged-sediments, and dumped wastes. To assess the performance of the GRO options, topsoil was collected from each field trial, potted, and cultivated with lettuce (Lactuca sativa L) for 48 days. Shoot dry weight (DW) yield, photosynthesis efficiency and major element and TE concentrations in the soil pore water and lettuce shoots were measured.GRO implementation had a limited effect on TE concentrations in the soil pore water, although use of multivariate Co-inertia Analysis revealed a clear amelioration effect in phytomanaged soils. Phytomanagement increased shoot DW yield at all industrial and mine sites, whereas in agricultural soils improvements were produced in one out of five sites. Photosynthesis efficiency was less sensitive than changes in shoot biomass and did not discriminate changes in soil conditions.Based on lettuce shoot DW yield, compost amendment followed by phytoextraction yielded better results than phytostabilisation; moreover shoot ionome data proved that, depending on initial soil conditions, recurrent compost application may be required to maintain crop production with common shoot nutrient concentrations. (C) 2017 Elsevier B.V. All rights reserved.

Keywords

Biomass; Chlorophyll fluorescence; GREENLAND project; Lettuce; Phytoextraction; Phytostabilisation

Published in

Science of the Total Environment
2017, Volume: 599, pages: 1388-1398

    Sustainable Development Goals

    SDG15 Life on land

    UKÄ Subject classification

    Environmental Sciences
    Other Earth and Related Environmental Sciences
    Environmental Sciences related to Agriculture and Land-use

    Publication identifier

    DOI: https://doi.org/10.1016/j.scitotenv.2017.04.187

    Permanent link to this page (URI)

    https://res.slu.se/id/publ/87680