Research Shows Trees in Bioswales Provide Significant Stormwater Benefits

When we talk about the value of urban trees and soils as a stormwater management tool, the contribution of the trees is often considered secondary. Soil will, of course, store significant amounts of runoff all on its own. However, new research at the Morton Arboretum in Lisle, IL, has found that trees actually provided the largest proportion of their bioswales’ stormwater benefits (Scharenbroch et al, 2016). ). In addition to significantly contributing to stormwater benefits, trees also provide many other benefits soil alone does not. 

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