DROUET Jean-Louis

Directeur de Recherche : Flux et pertes d'azote, modélisation intégrée, évaluation agro-environnementale, intrants agricoles, prospective, politiques publiques _________________________________________________________ Senior scientist - Nitrogen fluxes and losses, integrated modelling, agro-environmental assessment, agricultural inputs, foresight, public policies

INRAE - Campus Agro Paris-Saclay         /     UAR DEPE - INRAE (Intranet DEPE)

22 place de l'Agronomie    /     147 rue de l'Université

91120 Palaiseau                       /     75338 Paris

jean-louis.drouet@inrae.fr                CV HAL

Education & Background

  • 2015: Accreditation to supervise research (HDR), Pierre and Marie Curie University (UPMC), Paris - "Contribution of structure-function modelling of nitrogen transfers at different scales for managing nitrogen and landscape in agroecosystems"
  • 1998: PhD in Agronomy - Bioclimatology, Institut National Agronomique, Paris-Grignon (INA-PG)
  • 1992: Engineering Degree in Agronomy, Ecole Nationale Supérieure Agronomique, Rennes (ENSAR, Speciality: Bioclimatology, Remote sensing, Hydrology, Hydraulics, Soil physics)

Career history

  • 2020-present: INRAE Direction for collective scientific assessment, foresight and advanced studies (DEPE), Paris, mission officer
  • 2015-present: INRA Functional Ecology and Ecotoxicology of Agroecosystems (ECOSYS), Grignon, research scientist
  • 2000-2014: INRA Environment and Arable Crops (EGC), Grignon, research scientist
  • 1999-2000: INRA Ecophysiology and Horticulture (ECHO), Avignon, post-doctoral student
  • 1994-1998: INRA Bioclimatology, Grignon, PhD student
  • 1992-1994: Agrhymet Centre, Niamey (Niger), voluntary service overseas
  • 1992: INRA Bioclimatology, Bordeaux, student

Research Interests

  • 2020-present:
    • Foresight, European pesticide-free agriculture in 2050
  • 2005-present:
    • Nitrogen fluxes at landscape and regional scale, impact on greenhouse gas balance
    • Landscape modelling, and also regional, farm and crop modelling
    • Environmental assessment of various nitrogen management strategies at farm and landscape scales
  • 1994-2005:
    • Integrated functional-structural modelling of plants
    • Three-dimensional (3D) modelling of plant geometry and light partitioning
  • 1992-1994:
    • Assessment of forest production, rainfall and vegetation from remote sensing at regional scales (Landes, South-West France; Sahel, West Africa)

Current and recently completed projects

  • MIPP (2015-2018): "Integrated modelling of pesticide fate in landscapes" (Funder: INRA)
  • ALTER'N (2015-2020): "Knowledge of alternative sources of nitrogen (legumes and organic waste products) to manage low nitrogen losses and less synthetic fertilizers-dependent cropping systems" (Funder: MAAF)
  • ESCAPADE-ANR (2013-2017): "Assessing scenarios on the nitrogen cascade in rural landscapes and territorial modelling" (Funder: ANR Agrobiosphère), Coordinator
  • ECLAIRE-IP (2011-2015): "Effects of Climate Change on Air Pollution Impacts and Response Strategies for European Ecosystems" (Funder: EUROPE-FP7)
  • AnimalCHANGE-IP (2011-2015): "AN Integration of Mitigation and Adaptation options for sustainable Livestock production under climate CHANGE" (Funder: EUROPE-FP7)
  • "Dynamic inventories of ammonia emissions related to nitrogen fertilisation at regional and national scales" (2010-2014) (Funder: ADEME)
  • NITROEUROPE-IP (2006-2011): "The nitrogen cycle and its influence on the European greenhouse gas balance" (Funder: EUROPE-FP6)
  • "Genotypic response of oilseed rape to nitrogen fertilisation" (2003-2006) (Funder: PROMOSOL)
  • "Genetic and physiological bases of nitrogen absorption and remobilisation during maize grain filling" (2000-2003) (Funder: ECOGENE)
  • "Three-dimensional (3D) models of maize and wheat functioning" (1999-2001) (Funder: ECOS)

Other Activities

  • Since 2019: Member of the labelling committee of COMIFER (French committee for the study and development of reasoned fertilization)
  • Since 2018: Intuitu personae member and elected co-chair of CST-GENEM (Scientific and technical committee for the management of nutrients and emissions to the environment, inter-ministerial committee between MAA (Ministry for Agriculture and Food) and MTES (Ministry for an Ecological and Solidary Transition)
  • Since 2016: Member of the LMAS group (Landcape Management of Agricultural Systems) of GRC (Cropland Research Group) of GRA (Global Research Alliance)
  • Since 2016: Co-Leader of the scientific axis "Environmental and agronomic assessment at different scales" of the Eco&Phy team at UMR ECOSYS
  • Since 2015: Co-leader of WP1 "Nitrogen losses" of the ALTER'N project
  • Since 2012: Coordinator of the ESCAPADE-ANR project
  • 2011-2013: Member of the managing group of the landscape-scale modeling platform in the INRA Environment and Agronomy Department
  • 2010-2015: Leader of the scientific "Integration field-landscape-territory" axis of the Biosphere-Atmosphere team at UMR EGC
  • 2006-2011: NITROEUROPE-IP: Contributor to coordination of the Landscape component
    • Leader of the activity "NitroScape application to European sites"
    • Manager of the Data Centre hosting European landscape data
  • 2006-2010: Leader of a group working with the Farmsim model (EGC, UREP, ASTER, CIRAD, ENITAC)

        Corps :

Directeur de Recherche

Equipe :


Année d'arrivée à l'INRAE :


Formation :

Ingénieur agronome, docteur en bioclimatologie, HDR en sciences de l’environnement

Fonction principale et transversale, responsabilités :


Ce que je fais : 

•modélisation intégrée de la cascade de l’azote dans les paysages ; évaluation de scénarios d’atténuation des émissions azotées et d’adaptation des pratiques culturales et des mosaïques paysagères•expertise sur la gestion des éléments nutritifs et des émissions pour les ministères de l’agriculture et de l’écologie•prospective pour une agriculture européenne sans pesticides chimiques en 2050•contribution à la stratégie Europe et internationale d’INRAE pour l’expertise et l’appui aux politiques publiques

Techniques, instruments, méthodes et dispositifs utilisés :

•modèles couplés, bases de données spatialisées, prospective morphologique, visioconférences

En dehors du travail (centres d’intérêt):

•mes enfants, terre et littoral charentais, jardinage, marche, yoga, vélo, natation, saxophone…

Lien personnel (Linkedin, page perso…) :




Voir aussi

Recent Publications

  • Azouz N., Beekmann M., Siour G., Cellier P., Drouet J.-L., 2021. Changes in spatial patterns of ammonia dry deposition flux and deposition threshold exceedance according to dispersion model formalism and horizontal resolution. Environmental Pollution, 268(B), 115823. DOI: 10.1016/j.envpol.2020.115823.
  • El Akkari M., Ferchaud F., Strullu L., Schield I., Perrin A., Drouet J.-L., Jayet P.-A., Gabrielle B., 2020. Using a crop model to benchmark Miscanthus and Switchgrass. Energies, 13, 3942-3964. DOI: 10.3390/en13153942.
  • Azouz N., Drouet J.-L., Beekmann M., Siour G., Wichink Kruit R., Cellier P., 2019. Comparison of spatial patterns of ammonia concentration and dry deposition flux between a regional Eulerian chemistry-transport model and a local Gaussian plume model. Air Quality Atmosphere and Health, 12 (6), 719-729. DOI: 10.1007/s11869-019-00691-y.
  • Ferrer-Savall J., Franqueville D., Barbillon P., Benhamou C., Durand P., Taupin M.L., Monod H., Drouet J.-L., 2018. Sensitivity analysis of spatio-temporal models describing nitrogen transfers, transformations and losses at the landscape scale. Environmental Modelling and Software, 111, 356-367. DOI: 10.1016/j.envsoft.2018.09.010.
  • Franqueville D., Benhamou C., Pasquier C., Hénault C., Drouet J.-L., 2018. Modelling reactive nitrogen fluxes and mitigation scenarios on a Central France landscape. Agriculture Ecosystems and Environment, 264, 99-110. Agriculture Ecosystems and Environment, 264, 99-110. DOI: 10.1016/j.agee.2018.05.019.
  • Laurent F., Drouet J.-L., 2017. Gestion territoriale de l'azote - Réaménager : Le paysage est-il une solution ? Perspectives Agricoles, 449, 54-56.
  • Dufossé K., Gabrielle B., Drouet J.-L., 2016. Agro-ecosystem modeling can aid in the optimization of biomass feedstock supply. Environmental Modelling and Software, 85, 139-155. DOI: 10.1016/j.envsoft.2016.07.014.
  • Dufossé K., Drewer J., Gabrielle B., Drouet J.-L., 2014. Effects of a 20-year old Miscanthus x giganteus stand and its removal on soil characteristics and greenhouse gas emissions. Biomass and Bioenergy, 69, 198-210. DOI: 10.1016/j.biombioe.2014.07.003.
  • Fiorelli J.-L., Drouet J.-L., Duretz S., Gabrielle B., Graux A.-I., Blanfort V., Capitaine M., Cellier P., Soussana J.-F., 2014. Evaluation of greenhouse gas emissions and design of mitigation options: a whole farm approach based on farm management data and mechanistic models. International Journal of Sustainable Development, 17 (1), 22-34. DOI: 10.1504/IJSD.2014.058432.
  • Dufossé K., Gabrielle B., Drouet J.-L., Bessou C., 2013. Using agroecosystem modelling to improve the estimates of N2O emissions in the life-cycle assessment of biofuels. Waste and Biomass Valorization, 4(3), 593-606. DOI: 10.1007/s12649-012-9171-1.
  • Dalgaard T., Bienkowski J., Bleeker A., Drouet J.-L., Durand P., Dragosits U., Frumau A., Hutchings N.J., Kedziora A., Magliulo E., Olesen J.E., Theobald M.R., Akkal N., Cellier P., 2012. Farm nitrogen balances in six European landscapes with intensive agriculture - a method for farming systems assessment, emission hotspots identification, and mitigation measure evaluation. Biogeosciences Discussion, 9, 8859-8904.
  • Hutchings N.J., Reinds G.J., Leip A., Wattenbach M., Bienkowski J.F., Dalgaard T., Dragosits U., Drouet J.-L., Durand P., Maury O., de Vries, W., 2012. A model for simulating the timelines of field operations at a European scale for use in complex dynamic models. Biogeosciences Discussion, 9, 10583-10614.
  • Drouet J.-L., Duretz S., Durand P., Cellier P., 2012. Modelling the contribution of short-range atmospheric and hydrological transfers to nitrogen fluxes, budgets and indirect emissions in rural landscapes. Biogeosciences, 9, 1647-1660.
  • Cellier P., Bleeker A., Breuer L., Dalgaard T., Dragosits U., Drouet J.-L., Durand P., Duretz S., Hutchings N.J., Kros H., Loubet B., Oenema O., Olesen J., Mérot P., Theobald M.R., Viaud V., de Vries W., Sutton M.A., 2011. Nitrogen flows and fate in rural landscapes. In: Billen G., Bleeker A., Erisman J.W., Grennfelt P., Grizzetti B., Howard C., Sutton M.A., van Grinsven H. (Eds.), “The European Nitrogen Assessment”, Chapter 11, Cambridge University Press, Cambridge, United Kingdom, pp. 229-248.
  • Drouet J.-L., Capian N., Fiorelli J.-L., Blanfort V., Capitaine M., Duretz S., Gabrielle B., Martin R., Lardy R., Cellier P., Soussana J.-F., 2011. Sensitivity analysis for models of greenhouse gas emissions at farm level. Case study of N2O emissions simulated by the CERES-EGC model. Environmental Pollution, 159, 3156-3161.
  • Duretz S., Drouet J.-L., Durand P., Hutchings N.J., Theobald M.R., Salmon-Monviola J., Dragosits U., Maury O., Sutton M.A., Cellier P., 2011. NitroScape: a model to integrate nitrogen transfers and transformations in rural landscapes. Environmental Pollution, 159, 3162-3170.
  • Dalgaard T., Hutchings N., Dragosits U., Olesen J.E., Kjeldsen C., Drouet J.-L., Cellier P., 2011. Effects of farm heterogeneity on modelling and upscaling of nitrogen losses and greenhouse gas emissions in agricultural landscapes. Environmental Pollution, 159, 3183-3192.
  • Drouet J.-L., Kiniry J.R., 2008. Does spatial arrangement of 3D plants affect light transmission and extinction coefficient within maize crops. Field Crops Research, 107 (1), 62-69.
  • Drouet J.-L., Pagès L., 2007. GRAAL-CN: a model of GRowth, Architecture and ALlocation for Carbon and Nitrogen dynamics within whole plants formalised at the organ level. Ecological Modelling, 206 (3-4), 231-249.
  • Drouet J.-L., Pagès L., Serra V., 2005. Dynamics of leaf mass per unit area and root mass per unit volume of young maize plants: output variables in growth models. European Journal of Agronomy, 22 (2), 185-193.
  • Hirel B., Andrieu B., Valadier M.H., Renard S., Quilleré I., Chelle M., Pommel B., Fournier C., Drouet J.-L., 2005. Physiology of maize II: Identification of physiological markers representative of the nitrogen status of maize (Zea mays) leaves during grain filling. Physiologia Plantarum, 124 (2), 178-188.
  • Drouet J.-L., Bonhomme R., 2004. Effect of 3D nitrogen, dry mass per area and local irradiance on canopy photosynthesis within leaves of contrasted heterogeneous maize crops. Annals of Botany, 93 (6), 699-710.
  • Pagès L., Vercambre G., Drouet J.-L., Lecompte F., Collet C., Le Bot J., 2004. Root Typ: a generic model to depict and analyse the root system architecture. Plant and Soil, 258 (1), 103-119.
  • Drouet J.-L., Pagès L., 2003. GRAAL: a model of GRowth, Architecture and carbon ALlocation during the vegetative phase of the whole maize plant. Model description and parameterisation. Ecological Modelling , 165 (2-3), 147-173.
  • Drouet J.-L., 2003. MODICA and MODANCA: modelling the three-dimensional structure of gramineous crops from two methods of plant description. Field Crops Research, 83 (2), 215-222.
  • Maddonni G.A., Chelle M., Drouet J.-L., Andrieu B., 2001. Light interception of contrasting leaf azimuth canopies under square and rectangular plant spatial distribution: simulations and crop measurements. Field Crops Research , 70 (1), 1-13.
  • Drouet J.-L., Popa G., Nijs I., 2000. Numerical plants for biodiversity research. In: Ceulemans R., Bogaert J., Deckmin G., Nijs I., Topics in Plant Ecology: Structure and Function in Plants and Ecosystems, 155-166.
  • Drouet J.-L., Bonhomme R., 1999. Do variations in local leaf irradiance explain changes to leaf nitrogen within row maize canopies? Annals of Botany, 84, 61-69.
  • Drouet J.-L., Moulia B., Bonhomme R., 1999. Do changes in the azimuthal distribution of maize leaves over time affect canopy light absorption? Agronomie, 19, 281-294.
  • Drouet J.-L., 1998. Variations de la disposition spatiale et de la teneur en azote des feuilles d'un peuplement de maïs en phase végétative. Etude par simulation de l'influence de ces variations sur la photosynthèse potentielle du couvert. Thèse de Doctorat INA-PG, INRA Unité de Bioclimatologie de Grignon, 192 p.
  • Drouet J.-L., Moulia B., 1997. Spatial re-orientation of maize leaves affected by initial plant orientation and density. Agricultural and Forest Meteorology, 88, 85-100.

Date de modification : 07 novembre 2023 | Date de création : 04 août 2010 | Rédaction : Ecosys - J.L. Drouet