Greenroofs As A Part Of Urban Water Management
Author(s)
J. Mentens, D. Raes & M. Hermy
Abstract
Greenroofs as a part of urban water
management
J. Mentens, D. Raes & M. Hermy
Department of Land Management, KULeuven, Belgium
Abstract
Urban water management has long been determined by a quick removal of
rainfall to prevent floodings. Nowadays, policy makers are more interested in
integrated water management. One of the current management options consists
of keeping rainfall as long as possible at its location for example by means of
greenroofs. On greenroofs, a vegetation (mostly Sedum species) is cultivated on
a substrate on top of a roof. New techniques have made it possible to build
greenroofs on slopes of up to 45'. During the last two decades non-sloping
greenroofs have been intensively studied in Western Europe. In these studies
peak and/or yearly runoff were determined at specific locations. Since the
evapotranspiration rate, rainfall distribution and intensity vary considerable from
one area to another, the results are however not transferable to other regions.
Therefore a full wate
Keywords
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