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| Titel |
Characterising and modelling groundwater discharge in anagricultural wetland on the French Atlantic coast |
| VerfasserIn |
Ph. Weng, F. Giraud, P. Fleury, C. Chevallier |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1027-5606
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| Digitales Dokument |
URL |
| Erschienen |
In: Hydrology and Earth System Sciences ; 7, no. 1 ; Nr. 7, no. 1, S.33-42 |
| Datensatznummer |
250004418
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| Publikation (Nr.) |
 copernicus.org/hess-7-33-2003.pdf |
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| Zusammenfassung |
| Interaction between a wetland and its surrounding aquifer was studied in
the Rochefort agricultural marsh (150 km2). Groundwater discharge in the marsh
was measured with a network of nested piezometers. Hydrological modelling of the wetland
showed that a water volume of 770,000 m3 yr–1 is discharging into
the marsh, but that this water flux essentially takes place along the lateral borders of
the wetland. However, this natural discharge volume represents only 20% of the artificial
freshwater injected each year into the wetland to maintain the water level close to the
soil surface. Understanding and quantifying the groundwater component in wetland hydrology
is crucial for wetland management and conservation.
Keywords: wetland, hydrology, groundwater, modelling, marsh |
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