Early colonization of a constructed Technosol by soil organisms after industrial site rehabilitation

Technosols to reclaim industrial wastelands: depth distribution of abundance and activity of N-cycling microbial communities

International audience; Construction of Technosols through assemblage of treated soil and recycled wastes is an innovative option for the restoration of degraded lands and re-use of industrial wastes. Recent studies have evidenced that Technosols could support soil functions such as primary production but the knowledge about other ecosystemic services, such as nutrient cycling, is limited. In this work, we investigated the abundance and the activity of microbial communities involved in N-cycling in different horizons (0–15, 15–35, 35–70 cm) of two types of Technosols constructed to reclaim an industrial wasteland. The estimation by real-time PCR of the abundances of the different microbial …

Soil Bacterial and Fungal Communities of Urban Areas in France

International audience

Les épandages de déchets modifient-ils la qualité biologique des sols agricoles à long terme ? Résultats du programme VADEBIO

EA EcolDur CT3; National audience

The BioTechnoSol project: Biological dynamics and functioning of a constructed Technosol at the field scale

Estimation of atrazine-degrading genetic potential and activity in three French agricultural soils

The impact of organic amendment (sewage sludge or waste water) used to fertilize agricultural soils was estimated on the atrazine-degrading activity, the atrazine-degrading genetic potential and the bacterial community structure of soils continuously cropped with corn. Long-term application of organic amendment did not modify atrazine-mineralizing activity, which was found to essentially depend on the soil type. It also did not modify atrazine-degrading genetic potential estimated by quantitative PCR targeting atzA, B and C genes, which was shown to depend on soil type. The structure of soil bacterial community determined by RISA fingerprinting was significantly affected by organic amendmen…