Which practice can help reduce stormwater runoff?

The practice of implementing green roofs and permeable pavements is highly effective in reducing stormwater runoff. Green roofs consist of a layer of vegetation planted on rooftops, which helps absorb rainwater, filters pollutants, and mitigates the urban heat island effect. By holding rainwater and promoting evaporation, they significantly decrease the amount of runoff that enters stormwater systems.

Permeable pavements are designed to allow water to infiltrate the ground, rather than running off into drainage systems. These surfaces can include porous asphalt or concrete, or materials like gravel that allow water to seep through, reducing the volume of water that contributes to surface runoff. This not only helps in managing stormwater but also recharges groundwater supplies, thereby promoting a more sustainable water management approach.

Furthermore, both green roofs and permeable pavements can contribute to improved water quality by filtering pollutants before they can reach local waterways. Implementing these practices aligns with sustainable urban planning principles aimed at managing water efficiently in an environmentally friendly manner.