Article Dans Une Revue Hydrological Processes Année : 2023

Influence of vegetation‐induced water table seasonality on groundwater chloride concentration dynamics in a riparian fen peatland

Résumé

Peatlands are environments that rely mainly on high water levels to accumulate organic matter. Depending on the chemical species observed, the lowering of the water table can change biogeochemical equilibriums, with various impacts. This paper aims to understand the effect of shallow groundwater seasonality on chloride concentrations in a French riparian peatland by combining water table monitoring, geochemical and stable water isotopes analysis. Water table levels and groundwater samples were recorded and collected for 3 years, every 2 months, in nine observation wells and the nearby river. Chloride concentrations were highly variable in space and time, ranging from 10 to 100 mg L À1. They are shown to be related to the water

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hal-04379483 , version 1 (08-01-2024)

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Adrien Renaud, Véronique Durand, Claude Mügler, Christelle Marlin, Emmanuel Léger, et al.. Influence of vegetation‐induced water table seasonality on groundwater chloride concentration dynamics in a riparian fen peatland. Hydrological Processes, 2023, 37 (12), ⟨10.1002/hyp.15054⟩. ⟨hal-04379483⟩
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