Clément Heyser

PhD Student in Isotopic GeochemistryInstitut Terre Environnement de Strasbourg (ITES), Université de Strasbourg

Contact

Email : cheyser[at]unistra.fr

Address :  EOST-ITES, 5 Rue René Descartes, 67084 Strasbourg Cedex, France

Office : D321

Social Media :ResearchGate, LinkedIn

Research interest

  • Radionuclides behavior in the Critical Zone, with a focus on radium (Ra).
  • Isotope and environmental geochemistry.
  • Soil-organic matter interactions
  • Hydro-geochemical modeling
  • Climate change impacts on biogeochemical cycles in forest ecosystems.

Current Work

Impact of climate change on radionuclides mobility : role of organic matter on current and future radium mobility

           Supervisors :Sophie Rihs and Émilie Beaulieu.

 

My current research focuses on radium dynamics in a Norway spruce stand clear-cut in 2017 and a beech stand, both located in the Strengbach catchment (OHGE environmental observatory). This work involves chemical analyses and radium quantification in soil matrices and soil solutions, using thermo-ionization mass spectrometer (TIMS, Triton, ThermoFischer Scientific), as well as soil organic matter characterization through optical spectrometry (X-ray Fluorescence) and solid state 13C CP-MAS RMN.

The main objective is to understand the relationship between radium mobility and soil organic matter characteristics, and then model this interaction with a hydro-bio-geochemical model.

Skills

  • Analytical techniques : TIMS, spectroscopy
  • Soil sampling and preparation : environmental monitoring; fieldwork logistics
  • Data analysis : R, Excel, GIS (ArcGIS/QGIS)
  • Scientific communication : Academic writing, posters

Academic background

  • Since 2024 : PhD candidate in isotopic geochemistry at Université de Strasbourg.

           Title :Impact of climate change on radionuclides mobility : role of organic matter on current and future radium mobility

           Supervisors :Dr. Rihs Sophie and Dr. Beaulieu Émilie.

 

  • 2022-2024 : Master's Degree in Soil-Hydrology and Environment Sciences, Université de Lorraine.
    • 2024 : Intership at UMR Silva, AgroParisTech Nancy & ONF. Title :Soil Water Holding Capacity mapping in the Grand-Est and the Bourgogne Franche-Comté regions (France). 
    • 2023 : Internship at LRGP, Nancy. Title :Study of natural water quality in a recent clear-cut catchment.
  • 2018-2021 :  Bachelor's Degree in Biology and Geology, Université de Lorraine.