Impact of vegetation development on the hydraulic characteristics and flow patterns in lowland rivers

L. De Doncker, P. Troch, R. Verhoeven, K. Bal, P. Meire, J. Chormański, T. Okruszko, D. Świa̧tek

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Vegetation growth drastically influences water levels and flow patterns in lowland rivers. As soon as plants start to grow in spring, the flow resistance and by this the upstream water levels increase to reach a maximum in early summer. The universities of Ghent and Antwerp are carrying out research in the river Aa (Belgium) and the Biebrza river (Poland) in order to better understand the natural phenomena involved and to come to a more accurate determination of the different parameters involved. Regular field measurement campaigns allow to determine the variation of the roughness coefficient (Manningcoefficient n) as a function of time, type and density of vegetation, hydraulic parameters etc. and to evaluate flow and geomorphology patterns in the vicinity of vegetation patches. During these measurement campaigns, velocity and discharge measurements are carried out in multiple cross-sections in presence of vegetation using both an electromagnetic device and a hydrometric propeller.

Original languageEnglish (US)
Title of host publicationProceedings of the International Conference W3M "Wetlands
Subtitle of host publicationModelling, Monitoring, Management"
Pages165-172
Number of pages8
StatePublished - Dec 1 2007
Externally publishedYes
EventInternational Conference W3M "Wetlands: Modelling, Monitoring, Management" - Wierzba, Poland
Duration: Sep 22 2005Sep 25 2005

Publication series

NameProceedings of the International Conference W3M "Wetlands: Modelling, Monitoring, Management"

Other

OtherInternational Conference W3M "Wetlands: Modelling, Monitoring, Management"
CountryPoland
CityWierzba
Period9/22/059/25/05

ASJC Scopus subject areas

  • Ecological Modeling
  • Management, Monitoring, Policy and Law

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  • Cite this

    De Doncker, L., Troch, P., Verhoeven, R., Bal, K., Meire, P., Chormański, J., Okruszko, T., & Świa̧tek, D. (2007). Impact of vegetation development on the hydraulic characteristics and flow patterns in lowland rivers. In Proceedings of the International Conference W3M "Wetlands: Modelling, Monitoring, Management" (pp. 165-172). (Proceedings of the International Conference W3M "Wetlands: Modelling, Monitoring, Management").