Effects of Early Structural Changes of Engineered Soils on Green Roof and Bioretention Performance

Engineered soils play an important role in urban hydrology e.g. in the functioning of green roofs and storm water bioretention beds. Water infiltration, colloid transport and heat transport are affected by changes in pore system geometry particularly due to development of macropores and clogging by...

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Bibliographic Details
Published in:IOP conference series. Earth and environmental science 2019-06, Vol.290 (1), p.12086
Main Authors: Snehota, M, Hanzlikova, J, Heckova, P, Sacha, J, Jelinkova, V, Kaestner, A
Format: Article
Language:English
Subjects:
Green buildings
Green roofs
Heat transport
Hydraulic properties
Hydrology
Retention basins
Roofs
Soil formation
Soil properties
Soils
Stormwater
Urban hydrology
Water infiltration
Water regimes
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Summary:Engineered soils play an important role in urban hydrology e.g. in the functioning of green roofs and storm water bioretention beds. Water infiltration, colloid transport and heat transport are affected by changes in pore system geometry particularly due to development of macropores and clogging by particles. The rate of pedogenesis is often faster than in natural soils due to higher loads of particles as well as by extreme water regimes. In the presented project we assess the temporal changes of hydraulic properties of engineered soils in typical bioretention beds and green roofs by conducting field scale experiments. The aim is to elucidate changes in hydraulic properties by studying the structural changes of soils at the microscale by invasive and noninvasive methods. The outcomes of the research will lead to improved design and management procedures for green roofs and bioretention beds.
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/290/1/012086