Methods to Reduce Urban Runoff
Grace Taylor
5 min read
Listen to this study note
Study Guide Overview
This study guide covers urban runoff, focusing on its definition, comparison to natural water flow, negative impacts (reduced groundwater recharge, increased freshwater input to marine systems, pollution, erosion, flooding, and harm to aquatic life), and mitigation strategies (increasing water infiltration through permeable pavement and green infrastructure, and reducing impervious surfaces). The guide also provides exam tips, highlighting high-priority topics such as the impact of impervious surfaces and mitigation strategies, common question types, and last-minute preparation advice.
#1. Urban Runoff: A Deep Dive 🌊
Urban runoff is a critical environmental issue, especially in densely populated areas. Understanding its causes, impacts, and mitigation strategies is key for the exam.
#What is Urban Runoff?
-
Definition: Urban runoff is the water from rain and snow that flows over man-made surfaces like streets, roads, and buildings. It's essentially precipitation that can't soak into the ground.
-
Contrast with Natural Water Flow: In natural environments, precipitation infiltrates the soil, replenishing groundwater and feeding streams. Urban areas disrupt this natural process.
Image courtesy of Pixabay: Rain falling on a city street, illustrating the source of urban runoff.
#The Problem: Impacts of Urban Runoff
- Reduced Groundwater Recharge:
Impervious surfaces prevent water from seeping into the ground, leading to decreased groundwater levels.
- Increased Freshwater Input to Marine Systems: Runoff is often chann...
How are we doing?
Give us your feedback and let us know how we can improve