All flashcards
Flashcard 1: What is an eco-roof?
Answer: A roof covered with vegetation. Green roof system that manages stormwater naturally.
Flashcard 2: How does zoning influence urban runoff?
Answer: Zoning laws can limit impervious surfaces. Regulations can require pervious surfaces and green infrastructure.
Flashcard 3: What is the purpose of grassed waterways?
Answer: To convey and filter stormwater runoff. Vegetated channels that slow flow and remove pollutants.
Flashcard 4: How can urban gardens reduce runoff?
Answer: They capture and use rainwater. Plants intercept rainfall and reduce surface runoff volume.
Flashcard 5: What is low impact development (LID)?
Answer: An approach to manage stormwater close to its source. Integrates development with natural hydrologic functions.
Flashcard 6: Name a method to reduce impervious surfaces.
Answer: Use of permeable paving materials. Reduces surface area that prevents water infiltration.
Flashcard 7: What is the purpose of curb cuts in urban design?
Answer: To direct stormwater to permeable areas. Breaks in curbs allow water flow into vegetated areas.
Flashcard 8: How does tree planting reduce urban runoff?
Answer: Trees absorb water through their roots. Canopy intercepts rainfall and roots increase soil infiltration.
Flashcard 9: Identify a benefit of using porous asphalt.
Answer: Allows water to infiltrate into the ground. Reduces surface runoff by promoting groundwater recharge.
Flashcard 10: What is an infiltration trench?
Answer: A trench filled with gravel that aids water infiltration. Provides underground storage and promotes groundwater recharge.
Flashcard 11: What is the purpose of curb cuts in urban design?
Answer: To direct stormwater to permeable areas. Breaks in curbs allow water flow into vegetated areas.
Flashcard 12: What is the benefit of using rain barrels?
Answer: To collect and store rainwater for later use. Reduces demand on municipal water and stormwater systems.
Flashcard 13: How does using native vegetation impact runoff?
Answer: It reduces water needs and improves infiltration. Adapted plants require less irrigation and improve soil health.
Flashcard 14: How do urban ponds contribute to runoff control?
Answer: They retain and treat stormwater. Water features that provide storage and natural treatment.
Flashcard 15: Identify a method to minimize soil erosion.
Answer: Plant cover crops on bare soil. Vegetation protects soil from erosion and increases infiltration.
Flashcard 16: What is the purpose of a rain chain?
Answer: To guide rainwater from roofs to storage or ground. Alternative to downspouts that slows water flow velocity.
Flashcard 17: What is the purpose of grassed waterways?
Answer: To convey and filter stormwater runoff. Vegetated channels that slow flow and remove pollutants.
Flashcard 18: What is a dry well?
Answer: An underground structure for stormwater infiltration. Underground infiltration system for localized water management.
Flashcard 19: What is the function of constructed wetlands?
Answer: They treat and filter stormwater naturally. Provide biological treatment and habitat while managing water.
Flashcard 20: How does urban planning impact runoff?
Answer: Effective planning reduces impervious surfaces. Strategic design minimizes impermeable surfaces and maximizes infiltration.
Flashcard 21: What role do retention ponds play in urban runoff management?
Answer: They store and slowly release stormwater. Provide temporary storage to prevent downstream flooding.
Flashcard 22: Name a method to reduce impervious surfaces.
Answer: Use of permeable paving materials. Reduces surface area that prevents water infiltration.
Flashcard 23: What is the advantage of using mulch?
Answer: Reduces soil erosion and aids water retention. Protects soil surface and improves water infiltration rates.
Flashcard 24: Identify a benefit of using porous asphalt.
Answer: Allows water to infiltrate into the ground. Reduces surface runoff by promoting groundwater recharge.
Flashcard 25: Identify a strategy to enhance soil infiltration.
Answer: Amending soil with organic matter. Improves soil porosity and water-holding capacity.
Flashcard 26: What is the purpose of green roofs?
Answer: To absorb rainwater and reduce runoff. Vegetation intercepts rainfall and retains water in growing medium.
Flashcard 27: What is a bioswale?
Answer: A vegetated channel that filters stormwater. Engineered landscape feature that treats runoff naturally.
Flashcard 28: How does tree planting reduce urban runoff?
Answer: Trees absorb water through their roots. Canopy intercepts rainfall and roots increase soil infiltration.
Flashcard 29: What is xeriscaping?
Answer: Landscaping to reduce water usage. Drought-resistant landscaping that reduces irrigation runoff.
Flashcard 30: What is the function of catch basins?
Answer: To trap debris and prevent drain blockages. Infrastructure component that protects drainage systems.