Green roofs

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Through the vegetation of the soil substrate on the roofs water is retained and can evaporate. Two system of green roofing can be distinguished based on the level of maintenance: extensive green roof to an intensive green roof.

Rain / stormwater gardens, bioretention cells

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Rain gardens are small-scale vegetated gardens used for storage and infiltration. They are typically applied at a property level and close to buildings, for example to capture and infiltrate roof drainage. They use a range of components, typically incorporated into the garden landscape design as appropriate. Under the vegetation layer is a filter bed substrate…

Blue and green infrastructure

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All kinds of blue and green infrastructure in the settlement areas (rivers, river valleys, water reservoirs, natural and artificial wetlands, parks, squares, orchards, gardens, allotments, green street strips, grasslands and other) decrease runoff and increase retention capacity. Preservation of the existing elements and creation of new elements is a contribution to heavy rain risk management…

Rainwater management in decentralised systems

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This group of measures includes linear and aerial permeable elements, furrows, rainwater reservoirs, vegetation roofs and vegetating for decentralised management of rain water aiming on better infiltration and evaporation in settlement areas. Applied in a complex, it can reduce not only the total volume of surface water but also the speed of surface runoff significantly.…

Catchment based concepts and plans; inter-communal cooperation

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Land use and land cover changes as well as intensification or extensification of land use are altering the hydrologic system and have potentially large impacts on flooding in lower lying areas. Upstream and downstream interconnections, interactions and action’s intereffects should be taken into consideration in planning activities, especially when problems occur in settlement areas. Formal…