OUSTRIERE, Nadège; MARCHAND, Lilian; GALLAND, William; GABBON, Lunel; LOTTIER, Nathalie; MOTELICA-HEINO, Mikael; MENCH, Michel

doi:10.1016/j.scitotenv.2016.05.091

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OUSTRIERE, Nadège
Biodiversité, Gènes & Communautés [BioGeCo]

MARCHAND, Lilian
Biodiversité, Gènes & Communautés [BioGeCo]

GALLAND, William
Biodiversité, Gènes & Communautés [BioGeCo]

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Article de revue

Ce document a été publié dans

Science of the Total Environment. 2016-10, vol. 566-567, p. 816–825

Elsevier

Résumé en anglais

Two biochars, a green waste compost and iron grit were used, alone and in combination, as amendment to improvesoil properties and in situ stabilize Cu in a contaminated soil (964 mg Cu kg−1) from a wood preservationsite. The pot experiment consisted in 9 soil treatments (% w/w): untreated Cu-contaminated soil (Unt); Unt soilamended respectively with compost (5%, C), iron grit (1%, Z), pine bark-derived biochar (1%, PB), poultry-manure-derived biochar (1%, AB), PB or AB + C (5%, PBC and ABC), and PB or AB + Z (1%, PBZ and ABZ). After a3-month reaction period, the soil pore water (SPW) was sampled in potted soils and dwarf beans were grownfor a 2-week period. In the SPW, all amendments decreased the Cu2+ concentration, but total Cu concentrationincreased in all AB-amended soils due to high dissolved organic matter (DOM) concentration. No treatment improvedroot and shoot DWyields, which even decreased in the ABC and ABZ treatments. The PBZ treatment decreasedtotal Cu concentration in the SPWwhile reducing the gap with common values for root and shoot yieldsof dwarf bean plants. A field trial is underway before any recommendation for the PB-based treatments.< Réduire

Mots clés en anglais

Copper contamination

Phaseolus vulgaris L.

In situ stabilization

DOI

http://dx.doi.org/10.1016/j.scitotenv.2016.05.091

Project ANR

Développement de procédés chimiques éco-innovants pour valoriser les biomasses issues des phytotechnologies - ANR-13-CDII-0005

Origine

Importé de hal

Unités de recherche

BioGeCo (Biodiversité Gènes & Communautés) - UMR 1202