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Kuehler and Teague have collected and analyzed each of the various ways trees can ease the impact of stormwater -- foliar retention, nutrient uptake, pollution removal, improved infiltration, and evapotranspiration. Comprehensive but not overly technical.

Eric Kuehler, USFS Southern Research Station, Erin Teague, posted on Forester Network [http://foresternetwork.com], October 5, 2016.

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As municipalities adopt low-impact development (LID) and green stormwater infrastructure practices 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. This article reviews the most current research regarding the volume of rainfall retained by tree canopy; the impacts of foliar detention of stormwater runoff lag time, peak flow, and velocity; water volume removed from the soil through transpiration; and nutrient uptake by trees.

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