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24, chemin de Borde Rouge -Auzeville - CS52627 31326 Castanet Tolosan cedex - France

Last update: May 2021

Menu Logo Principal University of Lorraine

UMR EEF - Forest Ecology and Ecophysiology


Person in charge


Damien BONAL

Research Director

+33 (0) 3 83 39 73 43

  • Influence of species diversity on mixed forest resistance to climate changes
  • Carbon and water flux and balance in tropical rainforests – Principal Investigator of the "Guyaflux" experimental site (eddyflux tower) located in French Guiana

Researchers and professors


Matthias CUNTZ

Research Director

+33 (0) 3 83 39 73 03

  • Modelling of energy, water and trace gas exchanges in terrestrial ecosystems
  • Using stable isotopes for process studies of the terrestrial biosphere
  • Global modelling of carbon and water including their isotopic compositions
  • Contact person for the Eddy covariance flux tower site “Hesse” (ICOS / Fluxnet)


Assistant Professor
+33 (0) 3 72 74 51 77

  • Focuses on the flow of carbon and nitrogen in trees
  • Studies carbon allocation between different metabolic fractions (soluble compounds, structural, protein, starch)

Daniel EPRON

+33 (0) 3 72 74 51 78

  • Ecophysiologist, person in charge of master FAGE
  • Teaches ecophysiology and plant ecology
  • Carbon allocation in trees and soils

Dominique GERANT

Assistant Professor
 +33 (0) 3 83 39 73 42 (INRA)
 +33 (0) 3 72 74 51 73 (UL)

  • Growth and physiological response of trees to climate change
  • Identifies carbohydrate and nitrogen storage compounds and their seasonal dynamics
  • Biochemical (spectrophotometry, HPLC, PAGE electrophoresis) and isotopic (13C and 15N) approaches


Research Director
+33 (0) 3 83 39 40 38

  • Focuses on water and carbon cycles in forest ecosystems
  • Conducts research on the effect of climate and drought on fluxes and balance of water and carbon


Research Scientist
+33 (0) 3 83 39 41 37

  • Studies the consequences of climate change on the allocation of carbon and nitrogen in forest trees, particularly in reserves
  • Specialized in:
    • isotopic labeling
    • biochemistry of carbohydrates

Nicolas MARRON

Research Scientist
+33 (0) 3 83 39 73 30

  • Studies the ecophysiology of short rotation coppice (SRC) and agroforestry plantations
  • Interested in carbon and nitrogen cycles in these plantations, and biomass production determinants

Pierrick PRIAULT

Assistant Professor
+33 (0) 3 72 74 55 69

  • Interested in carbon allocation in forest ecosystems and peat bogs
  • Tree and sphagnum ecophysiology, gas exchange measurements, use of stable carbon isotopes and biochemistry

Engineers and Technicians



+33 (0) 3 54 40 33 02

  • Sample preparation for isotopic and biochemical analyses
  • Strong activity in PTEF


+33 (0) 3 83 39 73 00

  • Technical management of Hesse experimental site
erwin dallé


+33 (0) 3 83 39 73 30

  • Provides technical support for meteorological measurements and growth monitoring of experimental sites
  • Prepares samples of plants and soil before analyses

Patrick GROSS

+33 (0) 3 83 39 40 31

  • Design, implementation and monitoring of automatic systems for climate and ecophysiological measurements
  • In charge of:
    • Measurements of climate, CO2 and H2O efflux by eddy covariance
    • Management of controlled conditions (temperature and CO2) in greenhouses
    • Chambers for measuring leaf gas exchange

Jean-Baptiste LILY

+33 (0) 3 83 39 40 31

  • Design, implementation and monitoring of automatic systems for climate and ecophysiological measurements
  • In charge of measurements of climate, CO2 and H2O efflux by eddy covariance in Hesse

Stéphane MARTIN

Technician (50%)

+33 (0) 3 72 74 51 76

+33 (0) 3 72 74 50 06

  • Technical support for the development and maintenance of in situ measurement devices

Caroline PLAIN

+33 (0) 3 83 39 73 42

+33 (0) 3 72 74 51 77 (UL)

  • Measurements of gas exchange, primarily CO2 fluxes and their isotopic composition at the soil-atmosphere interface
  • In charge of the laser diode spectrophotometer (TDLS Campbell) for measuring CO2 isotopologues at high frequency

Fixed-term contract


Jérémy MAUER

+33 (0) 3 83 39 41 13

  • Maintenance of instrumentation of the sites of the long-term environmental observatory (Montiers-sur-Saulx), in partnership with ANDRA
  • The different sites (forest, grassland, crops) are equipped with a flux tower (eddy covariance systems and climate sensors)

PhD students / Post-doctoral researchers


Pierre-Antoine CHUSTE 

  • Impact of defoliation and drought on carbon availability and allocation between growth and storage in European beech
  • Impact of these two constraints on nitrogen content and storage in tree organs
Yanwen Dong

Yanwen DONG

Co-supervised PhD, UL - University of Laval (Quebec)

  • Identification of the mechanisms inducing leaf senescence in a spring ephemeral (Erythronium americanum)
  • Studies on the source - sink relationships in a simple model (a bulb - a leaf), both for carbon and nitrogen metabolisms


Post-doctoral researcher

  • Improvement of the formulation of root water uptake in ecosystem models
  • Modeling forest ecosystem responses to water stress
  • Use of stable isotopes and chloride levels as process tracers
Laura Heid

Laura HEID

  • Seasonal change of biomass production efficiency
  • Comparison of three ecosystems (forest, crop and grassland) under similar soil and climatic conditions (Montiers-sur-Saulx sites)


  • Impact of tree species interactions for light and water acquisition in forests, in a context where environmental conditions vary
  • Measurements on different temperate forest species in plantation (Bordeaux, ORPHEE) and in natural forests (South-East of France, BIOPROFOR network) as part of the DiPTiCC ANR project

Virginie MOREAUX

Post-doctoral researcher

  • Measurements and analyses of energy, CH4, CO2 and H2O efflux by eddy covariance in terrestrial ecosystems (arctic tundra, croplands, grasslands and forests)
Camille Ziegler

Camille ZIEGLER 
+(594) 594 32 93 00

PhD in French Guiana (UMR Ecofog)

  • Interspecific variability in mechanisms of drought resistance of tropical rainforest trees

They worked with us

  • Pauline GAUDIN BETSCH (PhD 2007-2010)
  • Claire MARSDEN (PhD 2007-2010)
  • Julien TOILLON (PhD 2009-2013)
  • Florian PARENT (PhD 2010-2013)
  • Hadrien LEGRAS (PhD 2010-2013)
  • Morgane PLUCHON (PhD 2010-2013)
  • Laureline BES DE BERC (Engineer 2010-2011)
  • Charlotte GROSSIORD (PhD 2011-2014)
  • Nicha KANPANON (PhD 2012-2015)
  • Alwin NAIKEN (Engineer 2014-2015)
  • Emilie DELOGU (Post-doc 2015-2016)
  • Cécilia GANA (PhD 2012-2016)
  • Viviane TCHICHELLE (PhD 2012-2016)
  • Bernard LONGDOZ (Research Scientist 2002-2016)
  • Alexandre FRULEUX (PhD 2013-2017)