Chrono-environnement - UMR 6249
Campus de la Bouloie
16 rue de Gray
25030 Besançon
Alexandre LHOSMOT
Temporary lecturer
DYNABIO, GEODE
alexandre.lhosmot@-Code to remove to avoid SPAM-univ-fcomte.fr, alexandrelhosmot@-Code to remove to avoid SPAM-gmail.com
room -116L
Critical zone, peatlands, hydrogeology, geochemistry, isotopes, eddy-covariance, greenhouse gas fluxes, restoration, methane cycle, water-rock interactions, climate change
My research aims to better characterise the complex functioning of the Critical Zone through a multidisciplinary approach. I am studying both the hydrogeological functioning and the carbon cycle of peatlands to improve our understanding of the future of these ecosystems (and the ecosystem services they provide) in the context of climate change. More specifically, the three main themes of my research are (1) hydrogeology (water-rock interaction and origin of water: isotopy, piezometry, dissolved elements, hydrological balance), (2) biogeochemical cycles linked to carbon dynamics, and (3) the dynamics of greenhouse gas flows between the soil and the atmosphere. This work integrates several scales, e.g. metric (gas flux) to that of the hydrogeological catchment via the ecosystem scale.
Projects :
(1) Participant in the “Peat hydrogen and oxygen isotopes – PHOXYtopes” project.
Objective: To determine the reactivity of complex molecular components of OM (humic matter) in continental surface waters, by monitoring the seasonal incorporation of isotopic signals in humic matter of different size and polarity in French and Czech peat bogs and in surface water tributaries. Franco-Czech mobility project. Researchers involved: Arnaud Huguet (UMR METIS 7619), T. Meador, P. Porcal and M. Kopáček (Soil & Water Research Infrastructure, Czech Republic), S. Coffinet and S. Gogo (UMR Ecobio, Rennes), F. Laggoun-Défarge (ISTO, Orléans), G. Bertrand (UMR Chrono-Environnement, Besançon, Montbéliard), L. Gandois (UMR 5245, Laboratoire Ecologie Fonctionnelle et Environnement), F. Huneau and S. Santoni (CNRS UMR 6134 SPE).
(2) Co-sponsor of the “MICrobial drivers of MethAne produCtion and oxidation in peatlands” project (MICMAC, SNO Tourbières) with Sarah Coffinet (UMR Ecobio, Rennes) funded by SNO Tourbières (AAP Interne 2023).
Objective: To identify the microbial communities responsible for the production and oxidation of methane in two peat bogs in the SNO Tourbières network. This involves assessing the relative diversity, activity and spatial heterogeneity of these communities along an eco-hydrological gradient and a depth gradient. Researchers involved: E. Chatton (UMR Géosciences, Rennes), S. Gogo (UMR Ecobio, Rennes), G. Bertrand (UMR Chrono-Environnement, Besançon, Montbéliard), V. Milesi (ISTO, Orléans), T. Meador (Soil & Water Research Infrastructure, Czech Republic).
ORCID identifier: 0000-0003-1125-8405
https://www.linkedin.com/in/alexandre-lhosmot-a0a738118/
https://www.researchgate.net/profile/Alexandre-Lhosmot-2
Journal articles
2023
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- Alicia Frésard, Matthieu Mulot, Guillaume Bertrand, Alexandre Lhosmot, Laure Gandois, et al.. Inferring northern peatland methane emissions from testate amoebae: A proof of concept study. Mires and Peat , 2023, 29 (20), 18 pp. ⟨10.19189/MaP.2022.OMB.Sc.2089688⟩. ⟨hal-04282901⟩
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- Alexandre Lhosmot, Adrien Jacotot, Marc Steinmann, Philippe Binet, Marie-Laure Toussaint, et al.. Biotic and Abiotic Control Over Diurnal CH4 Fluxes in a Temperate Transitional Poor Fen Ecosystem. Ecosystems, 2023, 26 (2), pp.951-968. ⟨10.1007/s10021-022-00809-x⟩. ⟨hal-03881763⟩
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- Alexandre Lhosmot, Marc Steinmann, Philippe Binet, L. Gandois, Jean-Sébastien Moquet, et al.. Origin and fate of dissolved inorganic carbon in a karst groundwater fed peatland using δ13CDIC. Chemical Geology, 2023, 616, pp.121254. ⟨10.1016/j.chemgeo.2022.121254⟩. ⟨hal-03892868⟩
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2022
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- Alexandre Lhosmot, Julien Bouchez, Marc Steinmann, Véronique Lavastre, Vincent Bichet, et al.. The origin and transfer of water and solutes in peatlands: A multi tracer assessment in the carbonated Jura Mountains. Hydrological Processes, 2022, 36 (12), ⟨10.1002/hyp.14781⟩. ⟨hal-04282342⟩
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2021
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- Guillaume Bertrand, Alex Ponçot, Benjamin Pohl, Alexandre Lhosmot, Marc Steinmann, et al.. Statistical hydrology for evaluating peatland water table sensitivity to simple environmental variables and climate changes application to the mid-latitude/altitude Frasne peatland (Jura Mountains, France). Science of the Total Environment, 2021, 754, 141931 (55 p.). ⟨10.1016/j.scitotenv.2020.141931⟩. ⟨insu-02921354⟩
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- Sébastien Gogo, Jean‐baptiste Paroissien, Fatima Laggoun-Défarge, Jean-Marc Antoine, Léonard Bernard‐jannin, et al.. The information system of the French Peatland Observation Service: Service National d’Observation Tourbières – a valuable tool to assess the impact of global changes on the hydrology and biogeochemistry of temperate peatlands through long term monitoring. Hydrological Processes, 2021, 35 (6), e14244, 8p. ⟨10.1002/hyp.14244⟩. ⟨hal-03253867⟩
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- Alexandre Lhosmot, Louis Collin, Geneviève Magnon, Marc Steinmann, Catherine Bertrand, et al.. Restoration and meteorological variability highlight nested water supplies in middle altitude/latitude peatlands: Towards a hydrological conceptual model of the Frasne peatland, Jura Mountains, France. Ecohydrology, 2021, 14 (6), pp.e2315. ⟨10.1002/eco.2315⟩. ⟨hal-03469696⟩
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Conference papers
2023
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- L. Courtial-Manent, Alexandre Lhosmot, Ludovic Ravanel, Pierre-Allain Duvillard, Jean‐louis Mugnier, et al.. 17 years of high-altitude rock wall monitoring by terrestrial laser scanning (Mont-Blanc massif). 6th European Conference on Permafrost (EUCOP6), Jun 2023, Puigcerda, France. ⟨hal-04196570⟩
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- Alexandre Lhosmot, Jean-Sébastien Moquet, Adrien Jacotot, Marc Steinmann, L. Gandois, et al.. Peatlands methane origin and fluxes to the atmosphere: towards an integrative conceptual model of a temperate French peatland. EGU23, Apr 2023, Vienne (AUT), Austria. ⟨10.5194/egusphere-egu23-13093⟩. ⟨insu-04182733⟩
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2021
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- Alexandre Lhosmot, Jean Sébastien Moquet, L. Gandois, Julien Bouchez, Marc Steinmann, et al.. From water rock-interaction to methanogenesis: How climate induced raise of groundwater inputs might favor CH4 fluxes in the mid latitude/altitude Frasne peatland, Jura Mountains, France. Advancing Critical Zone science First OZCAR TERENO International Conference, Oct 2021, Strasbourg, France. ⟨10.13140/RG.2.2.13812.48009⟩. ⟨hal-03526712⟩
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- Alexandre Lhosmot, Louis Collin, Geneviève Magnon, Marc Steinmann, Catherine Bertrand, et al.. Characterization of nested water supplies in a mid latitude/altitude peatland using long-term monitoring data before and after restoration. The case study of the Frasne peatland (Jura Mountains, France). EGU21, Apr 2021, virtual, Austria. ⟨10.5194/egusphere-egu21-1302⟩. ⟨hal-03526384⟩
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- Alexandre Lhosmot, Marc Steinmann, Jean-Sébastien Moquet, Laure Gandois, Philippe Binet, et al.. Peatlands as patchworks of water-rock and water-peat interactions: The case study of the Frasne peatland, Jura Mountains, France.. Goldschmidt2021, Jul 2021, Virtual, France. ⟨10.7185/gold2021.7112⟩. ⟨hal-03526336⟩
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Poster communications
2023
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- Alexandre Lhosmot, Adrien Jacotot, Camille Bouchez, Eliot Chatton, Sarah Coffinet, et al.. From microbiological to ecosystemic scale evaluation of carbon-based (CO2, CH4) greenhouse gas sources, production, and transfers in temperate peatlands: a pluridisciplinary week at the playground for Critical Zonists in Frasne, Jura Mountains. Réunion des Sciences de la Terre (RST 2023), Oct 2023, Rennes, France. Unpublished, 2023, ⟨10.13140/RG.2.2.36360.60165⟩. ⟨hal-04282653⟩
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2019
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- Alexandre Lhosmot, G. Bertrand, M. Steinmann, M.L. Toussaint, C. Bertrand, et al.. CRITICAL PEAT project : The importance of hydrology for Carbon Reactivity along with atmosphere - peatland interactions. Preliminary results from the Frasne peatland monitoring (Jura Mountains, France).. AGU Fall Meeting 2019, Dec 2019, San Francisco, United States. ⟨insu-03064923⟩
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Theses
2023
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- Alexandre Lhosmot. Transferts d'eau et de carbone entre les tourbières, l'atmosphère et les aquifères : Modèles hydrologiques, géochimiques et de flux de gaz à effet de serre de la tourbière active de Frasne (Massif du Jura, France). Hydrologie. Université Bourgogne Franche-Comté, 2023. Français. ⟨NNT : 2023UBFCD029⟩. ⟨tel-04232876⟩
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