Urbanes Bodeninformationssystem Emscher : Planungshilfe für die Wasserwirtschaft im Klimawandel
- Since about 200 years wide areas in the Emscherregion (931km²) are transformed into urban soil landscapes. Today, approximately 70% of the soils consist of mixtures of and natural substrates. The urban soil shave taken over the functions of the natural soils in the water and element circles.To evaluate their functions as well as their prospects and risks caused by the climate change, their spreading and their properties have to be known. Up to now suitable urban soil maps and data material for planning processes are not available. Two model areas are chosen to prove how to create URBIS- ER. The benefit of URBIS-ER forwater management is the improvement of the data basis (maps with the spreading of urban soils with a characterisation of properties which influence groundwater quantity and quality),- prognostic tools (e.g. water household models, planning of storm water infiltration during the climate change),- riskassessment by climate change (increasing release of harmful substances, groundwater and surfaceater quality),- detection of chances and planning of necessary action (e.g. use of the soil cooling capacity for a better climate in cities = reduction of groundwater building).In URBIS-ER four evaluation maps are developed: Soil water household; Iron release potential of the soils; Cooling capacity of the soils; Soil suitability for storm water infiltration. The concept of URBIS-ER is that in the future more elements, soil property values and soil function could be integrated.