One of the most overlooked and underappreciated services of trees is their ability to reduce the volume of water rushing through gutters and pipes following a storm. Through the collective action of leaves and the anchoring and absorbing effects of roots, trees also contribute to soil stabilization, cleaner water and the recharge of groundwater that serves as drinking water supply. This bulletin covers the role of trees in stormwater retention and the resulting benefits to public health and municipal budgets. It includes pioneering research applications, ways trees can help, and examples of cities putting trees to work for stormwater control.
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Tree City USA Bulletin © 2019 Arbor Day Foundation.