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Rx for Hot Cities: Urban Greening and Cooling to Reduce Heat-Related Mortality in Los Angeles and Beyond

Across the country, a number of cities are setting ambitious tree canopy goals to fight the trend of a decline in tree canopy. Among the many causes of canopy loss, development is a key driver, and is one that communities can significantly influence...

Tree Function in Stormwater Biofilters

This seminar includes an invited presentation by Jon Hathaway, Associate Professor at the University of Tennessee Knoxville titled, “Tree Function in Stormwater Biofilters: The Green in Green Infrastructure” and a panel discussion with Mike Perniel (...

Investigating the Stormwater: Quantity and Quality Impacts of Urban Trees

A community with dense overhead tree canopy may benefit from reduced stormwater runoff volume through interception, transpiration, and infiltration but may also suffer from excess nutrients leached to nearby receiving waters from leaf litter. Bill...



Quantifying Rainfall Interception in the Urban Canopy

Urban stormwater is a major contributor to surface water degradation in the United States, prompting cities to invest in green infrastructure - methods that naturally capture, store, and slowly release runoff, such as urban trees. While rainfall...



More Than Good Looks: How trees influence urban stormwater management in green infrastructure practices

While green stormwater infrastructure increases in popularity, we are still learning about the role of trees in these innovative practices. In this webinar, Andrew Tirpak will discuss recent research results from studies designed to characterize the...

Making Urban Forests Count: Quantifying and crediting stormwater benefits Primary tabs

The water quality benefits of forests are widely accepted, yet very few studies have successfully quantified the runoff and pollutant-reducing impacts of trees in the urban landscape. Uncertainty as to how to "credit" urban trees - everything from...

Review of the Available Literature and Data on the Runoff and Pollutant Removal Capabilities of Urban Trees

The Center for Watershed Protection reviewed a total of 159 publications to evaluate the research questions defined in the scope of this project:

1. What is the effectiveness of urban tree planting on reducing runoff, nutrient and sediment?...

Integrating Trees into Stormwater Management Design and Policy

In spite of the proven value of trees for reducing stormwater flows and pollutants, there remains a widespread lack of understanding, acceptance, and credibility of their use for managing stormwater. In this webinar, Chris Kaeff and Craig Frye will...