A numerical study of the effects of vegetation patterns on wetland performance

A Bottacin Busolin, L Fabris, M Zaramella, A Marion

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

Abstract

Conceptual wetlands of simple geometry and randomly distributed vegetation fields with imposed statistical properties
(stem density average, variance and correlation length) were generated to assess their performance in the removal of
contaminants. The hydrodynamics was solved using a two-dimensional depth-averaged model where flow resistance is
generated by both bed friction and stem drag. Mass transport was solved using an advection-dispersion model with a
decay rate dependent on the local properties of the vegetation field. Wetland performance was found to depend primarily
on average vegetation density, but an increasingly significant effect on mass removal is observed as stem density
variance and correlation length increase.
Original languageEnglish
Title of host publicationE-proceedings of the 36th IAHR World Congress
EditorsArthur Mynett
PublisherIAHR
Number of pages4
ISBN (Print)978-90-824846-0-1
Publication statusPublished - Jul 2015
Event36th IAHR World Congress 2015: Deltas of the Future and What Happens Upstream - The Hague, Netherlands
Duration: 28 Jun 20153 Jul 2015

Conference

Conference36th IAHR World Congress 2015
CountryNetherlands
CityThe Hague
Period28/06/153/07/15

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