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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

 

2018

Courchesne F. In press 2018. Les Podzols. p. xxx-yyy. In : La Terre. R. Tremblay (ed.), Pointe-à-Callière et les Éditions de l’Homme, Montréal.

Corti G, Agnelli A, Cocco S, Cardelli V, Masse J and Courchesne F. Submitted February 2018. Soil impacts throughfall and stemflow fluxes under Turkey oak trees (Quercus cerris L.). Plant & Soil.

Augustin F, Houle D and Courchesne F. Submitted March 2018. An approach at estimating present-day base cation weathering rates: A case study for the Hermine watershed, Canada. Biogeochemistry.

Lamalice A, Haillot D, Lamontagne MA, Herrmann T, Gibout S, Blangy S, Martin JL, Coxam V, Arsenault J, Munro L, Courchesne F. Submitted April 2018. Building food and energy security in the Canadian Arctic through community greenhouses. Écoscience.

Marty C, Houle D, Courchesne F and Gagnon C. Submitted April 2018. Soil C:N ratio rather than climate is the main driver of soil δ15N across temperate and boreal forests in eastern Canada. Biogeochemistry.

Courchesne F, Chapdelaine C and Munro L. Submitted April 2018. The origin of smectite in the soil of the Kruger 2 archaeological site, Brompton (Québec), Canada. Geoarchaeology.

 

2017

Cocco S, Barucchi VC, Negri A, Giovannotti M, Splendiani A, Fioravanti T, Albertini D, Cardelli V, Courchesne F and Corti G. 2017. Opening a window on the past: Paleo-horizons across Pleistocene and Holocene. Madonna Delle Grotta, Praia a Mare, Southern Italy. Environmental Quality, 25: 33-38.

Fontana M, Labrecque M, Messier C, Courchesne F and Bélanger N. 2017. Quantifying the effects of soil and climate on aboveground biomass production of Salix Miyabeana SX67 in Quebec. New Forests, 10: 1-19.

Allegrezza M, Cocco S, Pesaresi S, Courchesne F and Corti G. 2017. Effect of snowpack management on grassland biodiversity and soil properties at a ski-resort in the Mediterranean basin (Central Italy). Plant Biosystems, 5: 760-770.

Marty C, Houle D, Gagnon, C and Courchesne F. 2017. The relationships of soil nitrogen concentrations, C:N ratios and N stocks with climate, vegetation types and nitrate deposition in temperate and boreal forest of eastern Canada. Catena, 152: 163-172.

Courchesne F, Turmel MC, Cloutier-Hurteau B, Tremblay G, Munro L and Labrecque M. 2017b. Soil trace element changes during a phytoremediation trial with willows in southern Québec, Canada. International Journal of Phytoremediation, 19: 632-642.

Courchesne F, Turmel MC, Cloutier-Hurteau B, Constantineau S, Munro L and Labrecque M. 2017a. Phytoextraction of soil trace elements by willow during a phytoremediation trial in southern Québec, Canada. International Journal of Phytoremediation, 19: 545-554.

Agnelli A, Cocco S, Massaccesi L, Courchesne F, Ugolini FC and Corti G. 2017. Features of skeleton water-extractable fines from different acidic soils. Geoderma, 289: 82-96.

 

2016

Courchesne F et Munro L. 2016. Pédologie du site Kruger 2 de Brompton. p. 236-242 In : Intervention archéologique sur le site Kruger 2 (BiEx-23) de Brompton. É Graillon et C Chapdelaine (ed.), Musée de la Nature et des sciences de Sherbrooke.

Fontana M, Lafleur B, Labrecque M, Courchesne F and Bélanger N. 2016. Maximum annual potential yields of Salix miyabeana SX67 in southern Quebec and effects of coppicing and stool age. BioEnergy Research, 9: 1109-1125.

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 & Soil, 400: 297-314.

 

2015

Chapdelaine C, Graillon É, Courchesne F, Turmel MC, Forget Brisson L, Hardy F, Lamothe M et Burke A. 2015. Cascades 5, une composante de la tradition de l’Archaïque du Golfe du Maine à East Angus, Estrie, Québec. p. 93-126 In : Cascades 5, un site de l’Archaïque ancien à East Angus, Estrie, Québec. C Chapdelaine (ed.), Collection Paléo-Québec XLV, Recherches amérindiennes au Québec, Montréal.

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 iroquoien Mailhot-Curran. p. 83-106 In : Mailhot-Curran: un village iroquoien du XVIe siècle. C Chapdelaine (ed.), Collection Paléo-Québec 35, Recherches amérindiennes au Québec, Montréal.

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.

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.

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.

 

2014

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.

 

2013

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 WH. 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, 373: 229-242.

 

2012

Courchesne F, Masse J et Girard M. 2012 The burial of Early Paleoindian artefacts in the Podzols of the Cliche-Rancourt site, Québec. p. 164-181 In: Late Pleistocene Archaeology & Ecology in the Far Northeast. C Chapdelaine (ed.), Texas A&M University Press.

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, 111: 393-409.

 

2011

Ali G, Roy AG, Turmel MC, 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: 3843-3857.

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.

Turmel MC, 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.

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

 

2010

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. p. 129-154 In: De l’archéologie analytique à l’archéologie sociale. B. Lowen, C. Chapdelaine, et A. Burke (eds.), Collection Paléo-Québec 34, Recherches amérindiennes au Québec, Montréal.

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

Ali G, Roy AG, Turmel MC 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.

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