Ochrona Srodowiska i Zasobów Naturalnych - Environmental Protection and Natural Resources, Journal Year: 2025, Volume and Issue: unknown
Published: March 11, 2025
Abstract Currently, effective rainwater management in urban areas requires a modern and comprehensive approach, with mathematical modelling methods at its foundation. The aim of this study was to estimate the impact use dispersed green infrastructure (GI) – specifically, drainage-equipped rain gardens (bio-retention cells, or BC) their operational hydrological performance on scale an catchment, particularly reducing amount discharged directly receiver. An additional objective determine relationship between total inflow per unit area capacity percentage reduction individual BC facilities. In research, hydrodynamic single-event precipitation model built calibrated for existing housing estate Cracow (Poland) using Storm Water Management Model (SWMM). functioning GI is represented by Low Impact Development (LID), which simulated number scenarios (S 0 –S 7 ) durations 4.2, 15, 30, 45, 60, 90, 120 180 minutes, probability occurrence p = 10% (indicating chance any given year). results demonstrated significant potential peak flow average 94%, volume 86%, all outfall entire system. Analysis facilities revealed reductions ranging from 67% 95% facilities, depending duration rainfall. Notably, more were observed cases short, intense analysis highest efficiency showed that maximum values 1 m 2 surface area, reduced 100% inflow, occurred during heavy rainfall 15 min amounted 29.72 L/m (average 5.79 ).
Language: Английский