| Volumes and Issues Contents of Issue 1 Special Issue |
www.hydrol-earth-syst-sci.net/7/33/2003/
© Author(s) 2003. This work is licensed
under a Creative Commons License.
Characterising and modelling groundwater discharge in anagricultural wetland on the French Atlantic coast
1Bureau de Recherches Géologiques et Minières, Service EAU/RMD, 1039 rue de Pinville, 34000 Montpellier, France
2INRA-SAD, 545, rue Bois Maché,17450 Saint-Laurent-de-la-Prée, France
E-mail for corresponding author: p.weng@brgm.fr
Abstract. 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
Final Revised Paper (PDF, 1393 KB)
Citation: Weng, Ph., Giraud, F., Fleury, P., and Chevallier, C.: Characterising and modelling groundwater discharge in anagricultural wetland on the French Atlantic coast, Hydrol. Earth Syst. Sci., 7, 33-42, 2003. Bibtex EndNote Reference Manager
