 |
| Titel |
Modelling water flow and seasonal soil moisture dynamics in analluvial groundwater-fed wetland |
| VerfasserIn |
I. Joris, J. Feyen |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1027-5606
|
| Digitales Dokument |
URL |
| Erschienen |
In: Hydrology and Earth System Sciences ; 7, no. 1 ; Nr. 7, no. 1, S.57-66 |
| Datensatznummer |
250004420
|
| Publikation (Nr.) |
 copernicus.org/hess-7-57-2003.pdf |
|
|
|
|
|
| Zusammenfassung |
| Complex interactions occur in riparian wetlands between groundwater, surface
water and climatic conditions. Knowledge of the hydrology of these systems is necessary to
understand their functioning and their value and models are a useful and probably essential
tool to capture their hydrological complexity. In this study, a 2D-model describing
saturated-unsaturated water flow is applied to a transect through a groundwater-fed
riparian wetland located along the middle reach of the river Dijle. The transect has
high levees close to the river and a depression further into the floodplain. Scaling
factors are introduced to describe the variability of soil hydraulic properties along
the transect. Preliminary model calculations for one year show a good agreement between
model calculations and measurements and demonstrate the capability of the model to capture
the internal groundwater dynamics. Seasonal variations in soil moisture are reproduced well
by the model thus translating external hydrological boundary conditions to root zone
conditions. The model proves to be a promising tool for assessing effects of changes in
hydrological boundary conditions on vegetation type distribution and to gain more insight
in the highly variable internal flow processes of riparian wetlands.
Keywords: riparian wetland,eco-hydrology, upward seepage, floodplain hydrology |
| |
|
| Teil von |
|
|
|
|
|
|
|
|