Anthony Foucher

Post-Doctorant

Structure : UFR de Sciences et Techniques
> Laboratoire GéoHydrosystèmes COntinentaux
Courriel : anthony.foucher_at_univ-tours.fr
Localisation : Bat. E Office ES060
Téléphone : +(33) 02 47 36 74 04
Fax :

+(33)2 47 36 70 90


Current Position - Post-doctoral fellowship

 

Understanding and quantifying the impact of land use changes in soil erosion over the past century along the Loire Valley, by using sediment deposits in small head-water catchments. 

 

"METEOR" Research project (BRGM Orléans - LSCE Gif-sur-Yvette - GéHCo Tours) funded by the Loire-Brittany Water Agency. Supported by Sébastien Salvador-Blanés, Olivier Evrard, Olivier Cerdan & Rosalie Vandromme

 

 

PhD Thesis

 

"Reconstruction of sediment supply in intensivly cultivated lowlands: sources, pathways and sediment storage in the Louroux catchment (France)" Link

  supported by Marc Desmet & Sébastien Salvador-Blanés

  funded by the Loire-Brittany Water Agency

 

Abstract:  We have implemented an integrated multi-parameter approach allowing to track the sediment dynamics in a drained lowland area by starting from the sources of sediment to their accumulation in a sedimentary receptacle: the middle-age Louroux pond. The aims of this study are (i) to quantify at long (approx. 60 years) and short time scales (<10 years) the evolution of the erosion rate in the hillslope in link with the increase of the anthropogenic pressures (land consolidation, implementation of the drain network, ditches design), (ii) to track the origin of sediment reaching the pond, (iii) to identify and quantify the main source of sediment collected in sediment cores, on the main streams and at drain outlets.

 

Publications (Link to Researchgate)

 

 

Foucher, A., Salvador-Blanés, S., Vandromme, R., Cerdan, O., Desmet, M. 2017. Quantification of bank erosion in a drained agricultural lowland catchment. Hydrol. Process. 1–14.

doi:10.1002/hyp.11117

 

Le Gall, M., Evrard, O., Foucher, A., Laceby, J.P., Salvador-Blanes, S., Manière, L., Lefèvre, I., Cerdan, O., Ayrault, S., 2017a. Investigating the temporal dynamics of suspended sediment during flood events with 7Be and 210Pbxs measurements in a drained lowland catchment. Sci. Rep. 7, 42099.

 

Vandromme, R., Foucher, A., Cerdan, O., Salvador-Blanés, S., 2017. Quantification of bank erosion of artificial drainage networks using LiDAR data. Zeit. for Geomorph.

 

Le Gall, M., Evrard, O., Foucher, A., Laceby, J.P., Salvador-Blanes, S., Thil, F., Dapoigny, A., Lefèvre, I., Cerdan, O., Ayrault, S., 2016. Quantifying sediment sources in a lowland agricultural catchment pond using (137)Cs activities and radiogenic (87)Sr/(86)Sr ratios. Sci. Total Environ. 566–567, 968—980. doi:10.1016/j.scitotenv.2016.05.093

 

Le Gall, M., Evrard, O., Thil, F., Foucher, A., Laceby, J.P., Manière, L., Salvador-Blanes, S., Ayrault, S., 2016. Examining suspended sediment sources and dynamics during flood events in a drained catchment using radiogenic strontium isotope ratios (87Sr/86Sr). Chem. Geol. 449, 147–157. doi:http://dx.doi.org/10.1016/j.chemgeo.2016.12.007

 

Le Gall, M., Evrard, O., Thil, F., Foucher, A., Salvador-Blanes, S., Cerdan, O., Ayrault, S., 2015. Tracing Sediment Sources Using Strontium Isotopes in a Pond Draining an Agricultural Catchment (Loire River Basin, France). Procedia Earth Planet. Sci. 13, 30–34.

doi:http://dx.doi.org/10.1016/j.proeps.2015.07.007

 

Foucher, A., Laceby, P.J., Salvador-Blanes, S., Evrard, O., Le Gall, M., Lefèvre, I., Cerdan, O., Rajkumar, V., Desmet, M., 2015. Quantifying the dominant sources of sediment in a drained lowland agricultural catchment: The application of a thorium-based particle size correction in sediment fingerprinting. Geomorphology 250, 271–281.

doi:http://dx.doi.org/10.1016/j.geomorph.2015.09.007

 

Foucher, A., Salvador-Blanes, S., Evrard, O., Simonneau, A., Chapron, E., Courp, T., Cerdan, O., Lefèvre, I., Adriaensen, H., Lecompte, F., Desmet, M., 2014. Increase in soil erosion after agricultural intensification: Evidence from a lowland basin in France. Anthropocene 7, 30–41.

doi:http://dx.doi.org/10.1016/j.ancene.2015.02.00

 

Simonneau, A., Chapron, E., Courp, T., Tachikawa, K., Le Roux, G., Baron, S., Galop, D., Garcia, M., Di Giovanni, C., Motellica-Heino, M., Mazier, F., Foucher, A., Houet, T., Desmet, M., Bard, E., 2013. Recent climatic and anthropogenic imprints on lacustrine systems in Pyrenean Mountains inferred from minerogenic and organic clastic supply (Vicdessos valley, Pyrenees, France). The Holocene.

 

Vandromme, R., Cerdan, O., Gay, A., Foucher, A., Salvador-Blanes, S., Lendemaine, V., Desmet, M., 2013. The VERSEAU - TRACKSED Project: origin of Loire River basin sediments. 8th Int. SedNet Conf. 2013.

 

St-Onge, G., Chapron, E., Mulsow, S., Salas, M., Viel, M., Debret, M., Foucher, A., Mulder, T., Winiarski, T., Desmet, M., Costa, P.J.M., Ghaleb, B., Jaouen, A., Locat, J., 2012. Comparison of earthquake-triggered turbidites from the Saguenay (Eastern Canada) and Reloncavi (Chilean margin) Fjords: Implications for paleoseismicity and sedimentology. Sediment. Geol. 243–244, 89.

 

Montade, V., Combourieu Nebout, N., Chapron, E., Abarzua, A., Muslow, S., Debret, M., Foucher, A., Desmet, M., Winiarski, T., Kissel, C., n.d. Regional vegetation and climate changes during the last 13 Kyr from marine pollen record in Seno Reloncavi, Northwestern Patagonia, Chile.

Université François Rabelais     UFR Sciences et Techniques

 

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