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Comportement hydrodynamique des Marais de Saint-Gond (Marne, France)

Abstract : The purpose of the thesis carried out under the HYDRES program (2014-2018) is to understand the different water supply modes of the Marais de Saint-Gond, a vast 2,500 hectare wetland (Marne, Grand-Est), and identify how flows are distributed within the watershed. This work will also make it possible to understand how the Marais de Saint-Gond fit into interfluve Marne/Aube. The crossing of geomorphological approaches (mapping and profiles of alluvial terraces, alluvial filling profiles…) and hydrological (hydrological analyses at stations, serial measurements of flow rates and physico-chemical parameters, spatialization of hydrological yields…) highlights heterogeneous flow conditions into interfluve Marne/Aube, paradoxically homogeneous climatically and geologically. A filling study combined with a paleoenvironmental study allows us to trace not only the filling geometry but also the evolution of the wetland over the past 15,000 years. Finally, the diachronic study makes it possible to understand the evolution of the Marais de Saint-Gond over the last 200 years and to highlight the reasons why the area of the wetland decreases over the years.
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https://hal.univ-reims.fr/tel-02953735
Contributor : Alain Devos <>
Submitted on : Wednesday, September 30, 2020 - 1:23:22 PM
Last modification on : Thursday, October 1, 2020 - 3:32:24 AM

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  • HAL Id : tel-02953735, version 1

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Thibaud Damien. Comportement hydrodynamique des Marais de Saint-Gond (Marne, France). Géographie. URCA, 2019. Français. ⟨tel-02953735⟩

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