Conservation Training
Watershed-scale effectiveness of green stormwater infrastructure
October 23, 2024
10:00 am – 12:00 pm
Location: Online
This presentation will examine green stormwater infrastructure effectiveness at a watershed-scale. For the past 20 years, streamflow, water quality, geomorphology, and benthic communities were monitored in 5 watersheds in suburban Washington D.C. The monitored watersheds include a forested control, an urban control with centralized stormwater management, and 3 suburban treatment watersheds featuring low-impact development and a high density of infiltration-focused stormwater facilities distributed across the watershed. We found effective imperviousness to better explain the ecological outcomes in the treatment watersheds compared to either directly connected imperviousness or total imperviousness.