Summarized results of a literature review of research conducted to quantify the effect of trees on stormwater runoff.
(2008) Prepared for Seattle Public Utilities by Herrera Environmental Consultants. Trees affect stormwater runoff through three primary processes: interception, transpiration, and infiltration.
This report summarizes the results of a literature review of research conducted to quantify the effect of trees on stormwater runoff.This report also summarizes tree credit programs from several other cities, and concludes with recommendations for developing a tree credit program for the City of Seattle.
The ideal scenario for maximizing runoff reduction in an urbanized area would be to plant a mature, wide-crowned conifer as close as possible to ground-level impervious surfaces.