GSI Partners member, Andropogon Associates, was recently recognized by the American Society of Landscape Architects for their collaborative three-year study of the role of vegetation, soil, and adaptive management performance in urban green infrastructure. The designers and scientific researchers monitored the site’s runoff volume, water quality, soils, and vegetation to better understand the infrastructure’s performance and evaluated the long-term impacts of adaptive management. The designers modified maintenance protocols as needed to increase landscape performance.
“This study revealed that engineered soils, appropriate plant selection, irrigation reuse, and adaptive management significantly reduced overflows to the combined sewer system by more than three times that projected by the locally mandated engineering models. Effective advocacy for GSI policy and implementation requires more field-tested research to determine which soils and plants have the potential to manage the most stormwater under a wide variety of conditions. This research can not only help advocate for more implementation of GSI systems, but also achieve goals such as net-zero water on a site though programs such as SITES and the Living Building Challenge.”
Note: These findings exemplify the reason GSI Partners have developed our Monitoring Grant, and illustrate the kind of research we intend our grant to support.
Shoemaker Green Site Design
Photo source: University of Pennsylvania