Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.
2008
Volume 11
Issue 1
Topic:
Environmental Development
ELECTRONIC
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES
Swiatek D. , Verhoeven R. , Chormański J. , Okruszko T. , Ignar S. , Banasiak R. 2008. DETERMINATION OF INFLUENCE OF VEGETATION ON THE FRICTION FACTORS OF THE BIEBRZA RIVER, EJPAU 11(1), #05.
Available Online: http://www.ejpau.media.pl/volume11/issue1/abs-05.html

DETERMINATION OF INFLUENCE OF VEGETATION ON THE FRICTION FACTORS OF THE BIEBRZA RIVER

Dorota Swiatek1, Ronny Verhoeven2, Jarosław Chormański1, Tomasz Okruszko1, Stefan Ignar1, Robert Banasiak2
1 Department of Hydraulic Engineering and Environmental Reclamation, Warsaw Agricultural University, Poland
2 Hydraulics laboratory, TW15, Ghent University - Belgium

 

ABSTRACT



The Biebrza River, situated in the north-eastern part of Poland, flows through the last extensive, fairly undisturbed river-marginal wetlands in Europe. Its valley intensively drains the surrounding plateau and the outwash plain into the river and creates a very complex ground and surface water system. This study focuses on the upstream part of the river between Lipsk and Sztabin with a length of about 35 km and deals with the problem of determining the Manning friction factor as a function of vegetation and discharge or water levels. During intensive field measurement campaigns information on the river topography and on the hydraulic characteristics of river flow has been gathered. Special attention is paid to to the impact of dense vegetation on the discharge characteristics. The hydraulic data analysys focuses on the determination of the friction coefficients using four methods for steady state conditions.

Key words: flow resistance, wetlands, GIS techniques.

Dorota Swiatek
Department of Hydraulic Engineering and Environmental Reclamation,
Warsaw Agricultural University, Poland
Nowoursynowska 159, 02-787 Warsaw, Poland
Phone: (+48 22) 593 53 13
email: dorotams@levis.sggw.waw.pl

Ronny Verhoeven
Hydraulics laboratory, TW15, Ghent University - Belgium


Jarosław Chormański
Department of Hydraulic Engineering and Environmental Reclamation,
Warsaw Agricultural University, Poland
Nowoursynowska 159, 02-787 Warsaw, Poland

Tomasz Okruszko
Department of Hydraulic Engineering and Environmental Reclamation,
Warsaw Agricultural University, Poland
Nowoursynowska 159, 02-787 Warsaw, Poland

Stefan Ignar
Department of Hydraulic Engineering and Environmental Reclamation,
Warsaw Agricultural University, Poland
Nowoursynowska 159, 02-787 Warsaw, Poland

Robert Banasiak
Hydraulics laboratory, TW15, Ghent University - Belgium

Responses to this article, comments are invited and should be submitted within three months of the publication of the article. If accepted for publication, they will be published in the chapter headed 'Discussions' and hyperlinked to the article.

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