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| Titel |
Water displacement by sewer infrastructure in the Grote Nete catchment, Belgium, and its hydrological regime effects |
| VerfasserIn |
D. Vrebos, T. Vansteenkiste, J. Staes, P. Willems, P. Meire |
| 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 ; 18, no. 3 ; Nr. 18, no. 3 (2014-03-26), S.1119-1136 |
| Datensatznummer |
250120311
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| Publikation (Nr.) |
 copernicus.org/hess-18-1119-2014.pdf |
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| Zusammenfassung |
| Urbanization and especially increases in impervious areas, in combination
with the installation of wastewater treatment infrastructure, can impact the
runoff from a catchment and river flows in a significant way. These effects
were studied for the Grote Nete catchment in Belgium based on a combination
of empirical and model-based approaches. Effective impervious area, combined
with the extent of the wastewater collection regions, was considered as an
indicator for urbanization pressure. It was found that wastewater collection
regions ranging outside the boundaries of the natural catchment boundaries
caused changes in upstream catchment area between −16 and +3%, and
upstream impervious areas between −99 and +64%. These changes lead to
important intercatchment water transfers. Simulations with a
physically based and spatially distributed hydrological catchment model
revealed not only significant impacts of effective impervious area on seasonal runoff
volumes but also low and peak river flows. Our results show the importance,
as well as the difficulty, of explicitly accounting for these artificial pressures
and processes in the hydrological modeling of urbanized catchments. |
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