All Flashcards
How does permeable pavement reduce runoff?
Allows water to seep through, increasing infiltration.
How do green roofs mitigate urban runoff?
Vegetation absorbs rainwater, reducing runoff volume.
How do rain gardens reduce runoff?
Collect and filter runoff, increasing infiltration.
How does vertical building reduce runoff?
Reduces paved area compared to horizontal sprawl.
How do trees help reduce runoff?
Absorb rainwater and reduce runoff volume.
Why is urban runoff a problem?
Reduces groundwater, increases pollution, causes erosion.
How do impervious surfaces impact groundwater?
They prevent water from seeping into the ground.
What is the primary goal of runoff mitigation?
To increase water infiltration into the ground.
How does runoff affect marine ecosystems?
Increases freshwater input and pollution levels.
Why is vertical building a solution?
Reduces the amount of paved area needed.
How does runoff impact aquatic life?
Pollutes water, harming or killing organisms.
Define urban runoff.
Water from rain/snow flowing over man-made surfaces.
Define impervious surfaces.
Surfaces preventing water infiltration (e.g., roads).
Define permeable pavement.
Pavement allowing water to seep through.
Define green roofs.
Vegetation planted on rooftops to absorb rainwater.
Define rain gardens.
Depressions with vegetation to collect and filter runoff.