Transport of water, suspended substances and heat in man-made soils of urban green infrastructure

Artificial soils play an important role in urban hydrology, for example are green roofs and infiltration basins. The movement of water, the transport of colloids and the propagation of heat in these soils are affected by changes in the geometry of the pore system, especially by the formation and development of macropores and as a result of the blocking of pores by settled particles. The intensity of pedogenesis here is often faster than in natural soils due to the higher load with colloidal particles and due to the extremely fluctuating water regime. In the proposed project, we will deal with temporal changes in the hydraulic properties of artificially created soils, the filter layer of drainage basins with regulated drainage and green roofs. The goal is to elucidate changes in hydraulic properties by monitoring soil structural changes at the micro-scale using invasive and non-invasive methods. Procedures developed for modeling transport processes in the soil-plant-atmosphere system in the natural environment will be adapted to artificial soils.