Research

Jean-Luc Probst has a good expertise on hydrology and biogeochemistry of the Critical Zone, from small catchments to large river basins and he already worked on river systems all around the world with scientists of different countries: Congo and Ubangui, Niger and its tributaries, Nyong in South Cameroun, Senegal, Milo in Guinea, Haho and Zio in Togo, Oued Sebou in Morocco, Nahr Ibrahim in Lebanon, Amazon and its tributaries, Parana and Uruguay, Patagonian rivers, Indian rivers, Chinese rivers, Black River and Grand River North West in Mauritius, Piracicaba and Tiete in Brazil, Garonne, Mosel, Rhone, Tet and Ill rivers in France.

Main  research  interests:

• Hydrology and Biogeochemistry of the Critical Zone : to estimate the physical and chemical erosion rates of the river basins and to determine the soil weathering type using the fluvial transports of particulate and dissolved elements.
• Biogeochemistry of the carbon cycle : to quantify and to modelize the role of rock/soil chemical weathering and of riverine alkalinity transports into the oceans to the global carbon cycle, particularly to the atmospheric CO₂ content.
• Heavy metal transfer dynamic in soils and river systems : to estimate the respective contribution of rock/soil chemical weathering and of anthrogenic activities to heavy metal contents and dynamic  in soils and  rivers  (water and sediments) and to determine the role of the different controlling factors: organic carbon, iron oxides, clays, pH, redox potential, inorganic ligands, chemical and physical speciations.
• Pesticide and nutrient transfer dynamic in catchments: to determine the role of the storm runoff events in the transfer of pesticides from the soils to the river systems (water and sediments) and to assess the contribution of the different runoffs (surface runoff, subsurface and groundwater flows) to the exportation of pesticides by the river.
  
  

Teaching

Teaching – Courses :

• Isotopic Geochemistry and Hydrology (Stable Isotopes) : Master courses.
• Pollutant Transfers in the Ecosystems : Master courses.
• Water and fluxes of matters from Watersheds : Master courses
• Biogeochemistry of the Environment : pre-specialization courses

Director of a Master (2005-2009) : « Ecosystems and Anthropisation » (EA), a joint MASTER University of Toulouse III (UPS) – Toulouse INP.

Responsable of Engineering Degree of Agronomy (2004-2007) : « Environment Quality and Resource Management » (QEGR) at ENSAT-Toulouse INP.

IAEA (International Atomic Energy Agency) Expert since 2018 : for special service to provide the national team with a hands-on training in the domain of environmental isotope hydrology (specifically covering the areas of rain water, soil and vegetation, surface waters, groundwaters, and rock weathering). This include lectures, bibliographic research and presentation by the national team, field experiments, and a laboratory visit. The expert assists in the development of an Applied Nuclear Science and Technology in the Environment core module for a postgraduate certificate in applied nuclear science. The first IAEA training course was given in Reduit, Mauritius at the University of Mauritius (UoM) during the period 26 to 29 November 2018.

Responsabilities, other activities

Jean-Luc Probst is senior scientist in Environmental Biogeochemistry at the French National Center for Scientific Research (CNRS), Emeritus CNRS Research Director since 2022. He got his PhD in 1983 at the University of Toulouse (France) and his Habilitation (Thèse d’état) in 1990 at the University of Strasbourg (France). He was CNRS researcher during the period 1984-1998 and CNRS research director since 1999. He was also University Professor during 4 years (2004-2007) at Toulouse INP. He is « Life Member » of the International Association of GeoChemistry (IAGC). He has supervised 35 PhD and 60 Master Thesis.

Past responsabilities

1988-1999: Head of the research group “Hydrology and Geochemistry of Global Continental Environment” at the Centre for Sedimentology and Surface Geochemistry (CSGS, today  ITES), a joint research Laboratory CNRS- University of Strasbourg.

2000-2004 : member of the French National Committee for Scientific Research (sections 12 and interdisciplinary commission 46)

2003-2007 : President of the INQUA Carbon Commission (International Union for Quaternary Research)

2010-2021 : member of the board of directors of AQUA VALLEY, a French Water Cluster

2011-2015 : Director of the Laboratory of Functional Ecology and Environment (UMR CNRS 5245).

2015-2020 : President of the CNRS-INSU/INEE Scientific Commission on « Continental Sufaces and Interfaces » (CS-SIC)

2017-2021 : Director of the LTSER « Zone Atelier Pyrénées-Garonne » (2017-2021) which belongs to the Research Infrastructure (RI) RZA and PI of the LTER « Auradé Catchment » which belongs to the RI OZCAR, both being part of the European RI eLTER.

2018-2021 : Co-Director of the International Research Group O’LiFE between France and Lebanon.

2019-2021 : member of the board of directors of France Water Team, a new Federation which groups together the 3 French Water Clusters (AQUA-VALLEY, DREAM Eau et Milieux, HYDREOS).

Current responsabilities

Since 2014 : member of the scientific council of UniLaSalle Polytechnic Institut (Beauvais, Rouen, Rennes)

Since 2019 : Editor-in-Chief of WATER (IF=3,530), a peer-reviewed open access journal on water science and technology, including the ecology and management of water resources, and is published monthly online by MDPI.

Since 2023: International Technical Advisor to design, setting up and operationalization of an “Observatoire de l’Environnement” for the Republic of Mauritius.

Publications

Jean-Luc Probst has published more than 550 papers (https://scholar.google.fr/citations?user=uW6Re7gAAAAJ&hl=fr) of which 160 in peer reviewed journals, 90 book chapters, 250 proceedings of congress and 50 scientific reports.

He was guest editor of 10 special issues in per reviewed journals (2 in Sciences Geologiques Strasbourg, 2 in Chemical Geology-Elsevier, 1 in Publication of the International Association of Hydrological Sciences, 3 in Global and Planetary Change-Elsevier, 1 in Water-MDPI and 1 in Environmental Sciences Proceedings-MDPI).

List of selected publications since 2020 

• Ackerer J. et al. 2023. Exploring the critical zone heterogeneity and the hydrological diversity using an integrated ecohydrological model in three contrasted long-term observatories. Water Resources Research, 59, e2023WR035672. https://doi.org/10.1029/2023WR035672
• Badassan T.E-E, Avumadi A.M.D, Ouro-Sama K., Gnandi K., Jean-Dupuy S., Probst J.L. 2020- Geochemical composition of the Lomé lagoon sediments, Togo: seasonal and spatial variations of major, trace and rare earth element concentrations. Water, 12, http://dx.doi.org/10.3390/w12113026
• Binet S., Probst J.L., Batiot C., Seidel J.L., Emblanch C., Peyraube N., Charlier J.B., Bakalowicz M., Probst A. 2020- Global warming and acid atmospheric deposition impacts on carbonate dissolution and CO₂ fluxes in French karst hydrosystems: Evidence from hydrochemical monitoring in recent decades. Geochimica et Cosmochimica Acta, 270, 184-200https://doi.org/10.1016/j.ecolind.2019.105894, https://doi.org/10.1016/j.gca.2019.11.021
• Chaumet B., Probst J.L., Payre-Suc V., Granouillac F., Riboul D., Probst A. 2022-Pond mitigation in dissolved and particulate pesticide transfers: Influence of storm events and seasonality (Auradé agricultural catchment, SW-France). Journal of Environmental Management, 320, 115911, https://doi.org/10.1016/j.jenvman.2022.115911
• Chaumet B., Probst J.L., Eon P., Camboulive T., Riboul D., Payré-Suc V., Granouillac F., Probst A. 2021- Role of pond sediments for trapping pesticides in an agricultural catchment (Auradé, SW France): distribution and controlling factors. Water 2021, 13(13), 1734; https://doi.org/10.3390/w13131734
• El Mrissani S., Haida S., Probst J.L., Probst A. 2021- Multi-Indices Assessment of Origin and Controlling Factors of Trace Metals in River Sediments from a Semi-Arid Carbonated Basin (the Sebou Basin, Morocco). Water, 13, 3203. https://doi.org/10.3390/w13223203
• El Najjar P., Chidiac S., Probst J.L., El Omari K., Ouaini N., El Azzi D. 2023- Geochemical signature of the bed sediments at the outlet of the Ibrahim River (Lebanon): temporal variation. Environmental Monitoring and Assessment 195, 509, https://doi.org/10.1007/s10661-023-11103-1
• Fabre C., Sauvage S., Probst J.L. Sanchez-Perez J.M. 2020-Global-scale daily riverine DOC fluxes from lands to the oceans with a generic model. Global and Planetary Change, https://doi.org/10.1016/j.gloplacha.2020.103294
• Gilevska T., Masbou J., Baumlin B., Chaumet B., Chaumont C., Payraudeau S., Tournebize J., Probst A., Probst J.L., Imfeld G. 2022- Do pesticides degrade in surface water receiving runoff from agricultural catchments? Combining passive samplers (POCIS) and compound-specific isotope analysis. Science of The Total Environment, 156735, https://doi.org/10.1016/j.scitotenv.2022.156735
• Imfeld G., Payraudeau S., Tournebize J., Sauvage S., Macary F., Chaumont C., Probst A., Sanchez-Perez J.M., Bahi A., Chaumet B., Gilevska T., Alexandre H. and Probst J.L. 2021- The role of ponds in pesticide dissipation at the agricultural catchment scale: a critical review. Water 2021, 13, 1202. https://doi.org/10.3390/w13091202
• Imfeld G., Payraudeau S., Sauvage S., Macary F., Chaumont C., Lebrun J.D., Probst A., Sanchez Perez J.M., Probst J.L., Tournebize J. 2023 – Quel est le rôle des retenues collinaires pour limiter les flux de pesticides dans le paysage agricole ? Sciences Eaux & Territoires – Numéro 43 – 49-56, https://doi.org/10.20870/Revue-SET.2023.43.7506.
• Jantzi H., Carozza J.M. and Probst J.L. 2020- les formes d’érosion en lit mineur rocheux: typologie, distribution spatiale et implications sur la dynamique du lit. Exemple à partir des seuils rocheux molassiques de la moyenne Garonne toulousaine (Sud-Ouest, France). Géomorphologie: relief, processus, environnement, 26, 4, in press, DOI:10.4000/geomorphologie.14202
• Kazi Tani H.A., Bouanani A., Baba-Hamed K., Probst J.L. 2020-  The Dynamics of Suspended Particulate Matter in the Oued Nachef (Tafna Basin, Algeria): Typology of Flood Events and Contribution to Sediment Transport. Journal of Geological Resource and Engineering 8 (2020) 145-160 doi:10.17265/2328-2193/2020.05.002
• Lechuga-Crespo J.L., Ruiz-Romera E., Probst J.L., Unda-Calvo J., Cuervo-Fuentes Z.C., Sanchez-Perez J.M. 2020- Combining punctual and high frequency data for the spatiotemporal assessment of main geochemical processes and dissolved exports in an urban river catchment. Science of The Total Environment, 727, 138644, https://doi.org/10.1016/j.scitotenv.2020.138644
• Lechuga-Crespo J.L., Sanchez-Perez J.M., Sauvage S., Hartmann J., Amiotte-Suchet P., Probst J.L. & Ruiz-Romera E. 2020- A model for evaluating continental chemical weathering from riverine transports of dissolved major elements at a global scale. Global and Planetary Change, Available online 1 June 2020, 103220, https://doi.org/10.1016/j.gloplacha.2020.103226
• Lechuga-Crespo JL, Sauvage S, Ruiz-Romera E, Van Vliet MTH, Probst JL, Fabre C, Sanchez-Perez JM 2021- Global carbon sequestration through continental chemical weathering in a climatic change context. Nature Scientific Reports, 11 235 BB, DOI 10.1038/s41598-021-02891-y
• Nkoue Ndondo G.R. Probst J.L., Ndjama J., Ndam Ngoupayou J.R., Boeglin J.L., Takem G.E., Brunet F., Gauthier-Lafaye F. Braun J.J., Ekodeck G.E. 2020- Stable Carbon Isotopes δ¹³C as a Proxy for Characterizing Carbon Sources and Processes in a Small Tropical Headwater Catchment: Nsimi, Cameroon. Aquatic Geochemistry, https://doi.org/10.1007/s10498-020-09386-8
• Ouin A. et al 2022-  Building a shared vision of the future for multifunctional agricultural landscapes. Lessons from a long term socio-ecological research site in south-western France. Advances in Ecological Research, 65: 57-106,  ⟨10.1016/bs.aecr.2021.05.001⟩. ⟨hal-03309802⟩
• Ponnou-Delaffon V., Probst A., Pyre-Suc V., Granouillac F., Ferrant S., Perrin A.S. and Probst J.L. 2020- Long and short-term trends of stream hydrochemistry and high frequency surveys as indicators of the influence of climate change, agricultural practices and internal processes (Aurade agricultural catchment, SW France). Ecological Indicators, 110, 105894, https://doi.org/10.1016/j.ecolind.2019.105894
• Probst J.L. 2023- L’étude de la Zone Critique à petite et large échelles de temps et d’espace. Alters Media, 2023, Dossier « Zone critique: les sols », 7, pp.112-115.
• Saqalli M. et al. 2023- Some like it complex: building a common multidisciplinarity background from local experiences within the South-Mediterranean environmental reearch community. Frontiers in Sustainable Cities, 5, https://doi.org/10.3389/frsc.2023.1152244.
• Ullloa-Cedamanos F., Probst A., Moussa I., Probst J.L. 2021- Chemical weathering and CO2 consumption in a multi-lithological karstic critical zone: Long term hydrochemical trends and isotopic survey. Chemical Geology, 585, 120567, https://doi.org/10.1016/j.chemgeo.2021.120567
• TaeOh Kwon et al. 2021- Effects of Climate and Atmospheric Nitrogen Deposition on Early to Mid-Term Stage Litter Decomposition Across Biomes. Front. For. Glob. Change, 14 July 2021 | https://doi.org/10.3389/ffgc.2021.678480
• Ulloa-Cedamanos F., Probst A., Dos-Santos V., Camboulive T., Granouillac F., Probst J.L. 2021- Stream hydrochemical response to flood events in a multi-lithological karstic catchment from the Pyrenees Mountains (SW France). Water 13, no. 13: 1818. https://doi.org/10.3390/w13131818 
• Ulloa-Cedamanos F., Probst J.L., Binet S., Camboulive T., Payre-Suc V., Pautot C., Bakalowicz M., Beranger S. and Probst A. 2020- A Forty-Year Karstic Critical Zone Survey (Baget Catchment, Pyrenees-France): Lithologic and Hydroclimatic Controls on Seasonal and Inter-Annual Variations of StreamWater Chemical Composition, pCO2, and Carbonate Equilibrium. Water, 12, 1227; doi:10.3390/w12051227
• Ulloa-Cedamanos F., Probst J.L., Marais-Sicre C., Vrech E., Maire E. and Probst A. 2022- Potential influence of landscape transition on stream water chemistry trends during the last decades in a karst catchment (Pyrenees, SW France) in a context of global environmental changes. Ecological Indicators, 140, 10903, https://doi.org/10.1016/j.ecolind.2022.109023