ELHOTTOVÁ, D.; MENCH, Michel; GIAGNONI, L.; NANNIPIERI, P.; RENELLA, G.

doi:10.1080/15226514.2016.1267706

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ELHOTTOVÁ, D.
Institute of Soil Biology

MENCH, Michel
Biodiversité, Gènes & Communautés [BioGeCo]

GIAGNONI, L.
Department of Agri-Food Production and Environmental Sciences

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Article de revue

Ce document a été publié dans

International Journal of Phytoremediation. 2017, vol. 19, n° 11, p. 976-984

Taylor & Francis

Résumé en anglais

Phytomanagement of trace element-contaminated soils can reduce soil toxicity and restore soil ecological functions, including the soil gas exchange with the atmosphere. We studied the emission rate of the greenhouse gases (GHGs) CO2, CH4, and N2O; the potential CH4 oxidation; denitrification enzyme activity (DEA), and glucose mineralization of a Cu-contaminated soil amended with dolomitic limestone and compost, alone or in combination, after a 2-year phytomanagement with a mixed stand of Populus nigra, Salix viminalis, S. caprea, and Amorpha fruticosa. Soil microbial biomass and microbial community composition after analysis of the phospholipid fatty acids (PLFA) profile were determined. Phytomanagement significantly reduced Cu availability and soil toxicity, increased soil microbial biomass and glucose mineralization capacity, changed the composition of soil microbial communities, and increased the CO2 and N2O emission rates and DEA. Despite such increases, microbial communities were evolving toward less GHG emission per unit of microbial biomass than in untreated soils. Overall, the aided phytostabilization option would allow methanotrophic populations to establish in the remediated soils due to decreased soil toxicity and increased nutrient availability.< Réduire

Mots clés

microbial community composition

Mots clés en anglais

denitrification activity

greenhouse gases

microbial biomass and activity

phytomanagement

DOI

http://dx.doi.org/10.1080/15226514.2016.1267706

Project ANR

Intensify production, transform biomass to energy and novel goods and protect soils in Europe - ANR-15-SUSF-0007

Origine

Importé de hal

Unités de recherche

BioGeCo (Biodiversité Gènes & Communautés) - UMR 1202