Transport of water, suspended particles and heat in engineered soils of urban green infrastructure

Project ID: 17-21011S
Funding provider: Czech Science Foundation
Investigator at UCEEB:  doc. Ing. Michal Sněhota Ph.D.
Project duration: 1. 1. 2017 – 31. 12. 2019

Engineered soils play an important role in urban hydrology e.g. in the functioning of green roofs and stormwater bioretetion beds. Water infiltration, colloid transport and heat transport are affected by changes in pore systém geometry particularly due to development of macropores and by clogging by particles. The rate of pedogenesi sis often faster than in natural soils due to higher loads of particles as well as by extreme water regimes. In the proposed project we will describe 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 approaches recetly developer for modeling fluxes of water, contaminants and heat in soil-plant-atmosphere continua in natural settings will be extended to engineered soils.