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Courchesne, François

Professeur titulaire

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  • Téléphone 514-343-8027 Pav. PAV.M.CARON-L.GROULX-3200 J.B. \ bur. C-9076-3
Courchesne, François

Présentation

Mes intérêts de recherches portent sur l'étude des mécanismes contrôlant la biogéochimie des éléments dans les écosystèmes terrestres à diverses échelles spatiales dont celles du paysage, du bassin versant et de l'interface sol-plante. Dans ce contexte, mes travaux s'articulent autour de trois pôles de recherche.

Le premier concerne les processus à l'origine de la dynamique temporelle et de la variabilité spatiale du cycle biogéochimique des éléments majeurs comme les cations basiques et le carbone. Cette connaissance est essentielle à la compréhension des perturbations observées dans les cycles élémentaires en réponse aux changements environnementaux et climatiques.

Le second axe de recherche se concentre sur les interactions fines survenant entre le sol, les racines et les microorganismes dans la rhizosphère. Ce microenvironnement pédologique joue un rôle critique sur la spéciation, la biodisponibilité et l'absorption des éléments traces, tels le cadmium et le plomb, par les plantes. La clarification de ces interactions contribue, entre autres, au développement de nouvelles approches permettant la bioremédiation de sols contaminés.

Enfin, un troisième pôle a comme priorité l'étude de la pédogenèse, des pédoturbations et de leur impact sur la redistribution de la matière au sein des profils de sols. La connaissance des facteurs à l'origine de la dynamique spatiale des composantes et propriétés des sols constitue une information précieuse pour l'interprétation des signaux contenus dans les sédiments des sites archéologiques.

Expertises de recherche

Champs d'expertise

Publications principales

Publications récentes

Chapitres

Turmel MC, Courchesne F et Chapdelaine C. 2015. Contribution de la pédologie à la caractérisation de la signature chimique et minéralogique de structures archéologiques au site iroquoine Mailhot-Curran. p. 83-106 in Mailhot-Curran: un village iroquoien du XVIe siècle, C Chapdelaine (ed.). Collection Plaéo-Québec 35, Recherches amérindiennes au Québec, Montréal.

Courchesne F, Masse J and Girard M. 2012. The burial of Early Paleoindian artefacts in the Podzols of the Cliche-Rancourt site, Québec. p. 164-181 in C Chapdelaine (ed.), Texas AM University Press.

Masse J, Girard M et Courchesne F. 2010. L'enfouissement en profondeur des témoins culturels dans les sols du site Paléoindien ancien de Cliche-Rancourt, Québec. Pp. 129-154 in: De l'archéologie analytique à l'archéologie sociale, B Lowen, C Chapdelaine and A Burke (eds.). Collection Paléo-Québec 34, Recherches amérindiennes au Québec, Montréal.

Hinsinger Ph and Courchesne F. 2008. Mobility and bioavailability of heavy metals and metalloids at the soil-root interface. p. 267-311 In: Biophysico-Chemical Processes of Heavy Metals and Metalloids in Soil Environments. A Violante, PM Huang and GM Gadd (eds.), Wiley-IUPAC Series, John Wiley Sons, New Jersey.

Macdonald D, Bélanger N, Sauvé S, Courchesne F and Hendershot WH. 2007. Chapter 20: Collection and Characterization of Soil Solutions. p. 179-198 In: Soil Sampling and Methods of Soil Analysis. MR Carter, Y Soon and WH Hendershot, (eds.), Lewis Publishers, Boca Raton.

Courchesne F and Turmel MC. 2007. Chapter 26: Extractable Al, Fe, Mn and Si. p. 307-316 In: Soil Sampling and Methods of Soil Analysis. MR Carter, Y Soon and WH Hendershot, (eds.), Lewis Publishers, Boca Raton.

Courchesne F. 2006. Chapter 12: Factors of soil formation: Biota. p. 165-179 In: SOILS: Basic concepts and future challenges. G Certini and R Scalenghe (eds.), Cambridge University Press, Cambridge.

Gobran GR, Turpault MP and Courchesne F. 2005. Contribution of rhizospheric processes to mineral weathering in forest soils. p. 3-28 In: Biogeochemistry of Trace Elements in the Rhizosphere. PM Huang and GR Gobran, (eds.), Elsevier, New York.

Séguin V, Courchesne F, Gagnon C, Martin RR, Naftel S and Skinner W. 2005. Mineral weathering in the rhizosphere of forested soils. p. 29-55 In: Biogeochemistry of Trace Elements in the Rhizosphere. PM Huang and GR Gobran, (eds.), Elsevier, New York.

Legrand P, Turmel MC, Sauvé S and Courchesne F. 2005. Speciation and bioavailability of trace metals (Cd, Cu, Ni, Pb, Zn) in the rhizosphere of contaminated soils. p. 261-299 In: Biogeochemistry of Trace Elements in the Rhizosphere. PM Huang and GR Gobran, (eds.), Elsevier, New York.

Courchesne, F et Turmel, M.-C. 2005. Mass balance of organic carbon in the soils of forested watersheds from Northeastern North America. p. 383-420 In: Greenhouse Gas Emissions: Fluxes and Processes, Hydroelectric Reservoirs and Natural Environments. A Tremblay, L Varfalvy, C Roehm and Garneau M (eds.), Environmental Science Series, Springer, Berlin, Heidelberg, New York, 732 pages.

Articles

Fontana M, Lafleur B, Labrecque M, Courchesne F. and Bélanger, N. In press 2016. Maximum annual potential yields of Salix miyabeana SX67 in southern Quebec and effects of coppicing and stool age. Bioenergy Research.

Augustin, F, Houle D, Gagnon C and Courchesne, F. 2016. Evaluation of three methods for estimating the weathering rates of base cations in forested catchments. Catena. 144 :1-10.

Agnelli A, Massaccesi L, De Feudis M, Cocco S, Courchesne F, Corti G. 2016. Holm oak (Quercus ilex L.) rhizosphere affects limestone-derived soil under a multi-centennial forest. Plant and Soil. 400:297-314. DOI :10.1007/s11104-015-2732-x

Bell TH, Cloutier-Hurteau B, Al-Otaibi F, Turmel MC, Yergeau E, Courchesne F and St-Arnaud M. 2015. Identity and specificity of pioneer fungi in the rhizosphere are linked to willow growth and function during initial site restoration. Environmental Microbiology,17: 3025-3038

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Courchesne F, Turmel MC and Chapdelaine C. 2015. Chemical and mineralogical signatures of archaeological features in the soils of the Mailhot-Curran Iroquoian site, Saint-Anicet, Québec, Canada. Geoarcheology, 30:414-429. DOI: 10.1002/gea.21527

Augustin F, Houle D, Gagnon C and Courchesne, F. 2015. Long-term mineral weathering in forested catchments of the Canadian Shield, Québec. Geoderma, 248:12-23.

 

Augustin F, Houle D, Gagnon C, Couture S and Courchesne, F. 2015. Partitioning the impact of environmental factors on lake concentrations and catchment budgets for base cations in forested ecosystems. Applied Geochemistry, 53:1-12.

Cloutier-Hurteau B, Turmel MC, Mercier C and Courchesne, F. 2014. The sequestration of trace elements by willow (Salix purpurea) - which soil properties favor uptake and accumulation? Environmental Science and Pollution Research, 21:4759-4771.

Cloutier-Hurteau B, Gauthier S, Turmel MC, Comtois P, and Courchesne, F. 2013. Trace elements in the pollen of Ambrosia artemisiifolia: What is the effect of soil concentrations? Chemosphere, 95: 541-549.

Chen CC, Beauregard, F., Côté, B., Bélanger, N., Courchesne, F., and Hendershot, H. 2013. Partitioning of the source of leaf calcium of American beech and sugar maple using leaf Ca/Sr ratios: a predominantly surficial but variable depth Ca uptake. Plant & Soil. DOI 10.1007/s11104-013-1787-9.

Brecciaroli, G., Cocco, S., Agnelli, A., Courchesne, F. and Corti, G. 2012. From rainfall to throughfall in a maritime vineyard. Science of the Total Environment. (438): 174-188.

Bélanger, N., Holmden, C., Courchesne, F., Côté, B., and Hendershot, WH. 2012. Constraining soil mineral weathering 87Sr/86Sr for calcium apportionment studies of a deciduous forest growing on soils derived from complex petrogenetics. Geoderma. (185-186): 84-96.

Kerr JG, Eimers MC, Creed, IF, Adams MB, Beall F, Burns D, Campbell JL, Christopher, SF, Clair,TA, Courchesne F, Duchesne L, Fernandez I, Houle D, Jeffries DS, Likens GE, Mitchell MJ, Shanley J and Yao H. 2012. The effect of seasonal drying on sulphate dynamics in streams across southeastern Canada and northeastern USA. Biogeochemistry,  DOI 10.1007/s10533-011-9664-1.

Ali, G, Roy, A.G., Turmel, M.-C., L’Heureux , C. and Courchesne, F. 2011. Linking spatial patterns of perched groundwater storage and stormflow generation processes in a headwater forested catchment. Hydrological Processes 25(25): 3843-3857, doi: 10.1002/hyp.8238.

Cloutier-Hurteau,B., Sauvé, S. and Courchesne, F. 2011. Predicting Al, Cu and Zn concentrations in the fine roots of trembling aspen (Populus tremuloides Michx.) using bulk and rhizosphere soil properties. Canadian Journal of Forest Research 41:1267-1279. doi:10.1139/X11-052

Turmel, M.-C., Courchesne, F. and Cloutier-Hurteau, B. 2011. Microbial activity and water-soluble trace element species in the rhizosphere of spring wheat (Triticum aestivum cv. USU-perigree). Journal of Envrironmental Monitoring 13:1059-1072. DOI: 10.1039/c0em00232a

Mitchell M, G Lovett, S Bailey, F Beall, D Burns, D Buso, TA Clair, F Courchesne, L Duchesne, C Eimers, D Jeffries, S Kahl, GE Likens, P Murdoch, C Roers, D Schwede, J Shanley, K Weathers, R Vet. 2011. Comparisons of Watershed Sulfur Budgets in Southeast Canada and Northeast US: New Approaches and Implications. Biogeochemistry. 103:181-207. DOI 10.10007/s10533-010-9455-0

Ali, G, Roy, A.G., Turmel, M.-C. and Courchesne, F. 2010. Source-to-Stream Connectivity Assessment through end-member mixing analysis. Journal of Hydrology, 392:119-135.

Ali, G, Roy, A.G., Turmel, M.-C. and Courchesne, F. 2010. Multivariate Analysis as a Tool to Infer Hydrologic Response Types and Controlling Variables in a Humid Temperate Catchment. Hydrological Processes. 24: 2912-2923.

Cloutier-Hurteau, B., Sauvé, S. and Courchesne, F. 2010. Al & Zn speciation in the Rhizosphere of Forest Soils. Journal of Envrironmental Monitoring, 12:1274-1286.

Cloutier-Hurteau,B., Sauvé, S. and Courchesne, F. 2008. Influence of Microorganisms on Cu Speciation in the Rhizosphere of forest Soils. Soil Biology & Biochemistry, 40:2441-2451.

Stephan, C.H., Courchesne, F., Hendershot, W.H., McGrath, S., Chaudri, A.M., Sappin-Didier, V. and. Sauvé S. 2008. Speciation of zinc in contaminated soils. Environmental Pollution, 155: 208-216.

Courchesne, F., Cloutier-Hurteau B. and Turmel, M-C. 2008. Relevance of rhizosphere research for the ecological risk assessment of trace metals in soils. Human and Ecological Risk Assessment, 14: 54-72.

Turgeon, J. and Courchesne, F. 2008. Hydrochemistry of a headwater stream of the Canadian Shield: relevance of antecedent soil moisture conditions and of seasonality. Hydrological Processes, 22:327-339.

Cloutier-Hurteau B., Sauvé, S. and Courchesne, F. 2007. Comparing WHAM 6 and MINEQL+ 4.5 for the chemical speciation of Cu2+in the rhizosphere of forest soils. Environmnetal Science and Technology, 41:8104-8110.

Naftel, S.J., Martin, R.R., Macfie, S.M., Courchesne, F. and Séguin, V. 2007. An investigation of metals at the soil/root interface using Synchrotron radiation analysis. Canadian Journal of Analytical Sciences and Spectroscopy, 52:18- 24.

Courchesne, F., Kruyts, N. and Legrand, P. 2006. Labile zinc concentration and free copper ion activity in the rhizosphere of forest soils. Environmental Toxicology and Chemistry, 25:635-642.

Courchesne, F., Côté, B., Fyles, J., Hendershot, W.H., Biron, P.M., Roy, A.G. and M.-C. Turmel. 2005. Recent changes in soil chemistry in a forested ecosystem of southern Québec, Canada. Soil Science Society of America Journal, 69:1298-1313.

Turmel, M.-C., Turgeon, J.M.L., Courchesne, F., and Cloutier-Hurteau, B. 2005. Saisonnalité du transport de carbone organique dissous dans l’Hermine, un bassin versant de tête de réseau du Bouclier Canadien. Revue des Sciences de l’Eau, 18:353-380.

 

 

 

 

 

 

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