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Give Me the Numbers: How trees and urban forest systems really affect stormwater runoff

Trees and forest systems play an important role in the water cycle by intercepting rainfall and regulating water flow to the soil for more efficient stormwater infiltration. Traditional urban development practices have reduced the function of these systems by eliminating the vertical structure (tree canopy cover), removing existing ground cover and pervious soils, and compacting the remaining soil to better accommodate impervious surfaces. As municipalities begin to accept low-impact development (LID) and green stormwater infrastructure practices as a viable strategy to manage stormwater runoff, stormwater managers and design engineers need to better understand how effective trees and urban forest systems are at mitigating stormwater runoff and how management of these natural systems can reduce stormwater runoff and pollutant loading.

Trees Make Sense: Read the article here