Urban stormwater retention capacity of nature-based solutions at different climatic conditions

Climate change and the continuing increase in human population creates a growing need to tackle urban stormwater problems. One promising mitigation option is by using nature-based solutions (NBS) – especially sustainable management technologies that are key elements of NBS action. We used synthesis approach compile available information about retention capacity most common drainage systems (SUDS) different climatic conditions. Those SUDS targeting through water removal (mainly infiltration, overland flow evapotranspiration), were addressed this study. Selected green roofs, bioretention (i.e. rain gardens), buffer filter strips, vegetated swales, constructed wetlands, water-pervious pavements. found despite vast amount data from real-life applications research results, there lack decisive selected SUDS. The show large variability performance across It therefore challenge set conclusive widely applicable guidelines for implementation based on data. Adequate only evaluate roofs (average 56±20%) we provide comprehensive review function. However, as with other SUDS, still same problem high (min 11% max 99% retention) remains. This limits our ability determine support better planning wider climate zones. further development should be informed developed concurrently adaptation strategies cope change, increasing frequency extreme precipitation events lead volumes runoff.