A view of the Trager MicroForest with the large, curved Trager MicroForest sign on the left, low plantings in front of the…

Trager MicroForest Project

The Trager MicroForest at Founders Square is exploring how intensely-planted urban spaces can promote a healthier and more vibrant city.

What Is the Trager MicroForest Project?

The Trager MicroForest Project is densely planting Founders Square, a small urban park located in the heart of downtown Louisville. 

The project will: 

  • Explore a novel approach to urban greening by testing the potential of dense vegetation to lower localized temperatures,
  • Provide hands-on learning opportunities to engage and empower young Louisvillians,
  • And convert an underutilized city park into an inviting green space that benefits residents, draws visitors and enhances downtown vitality.

    Image
    A drone shot looking directly down on the Trager MicroForest which is bounded by city streets on three sides. The raised…

     

What Is the Trager MicroForest Project?

What Makes the Trager MicroForest Project Unique?

To the casual observer, the Trager MicroForest may appear similar to other small city parks. Beautiful plantings. Well-maintained pathways. Comfortable seating. Nice lighting. But the Trager MicroForest Project is more than meets the eye. It’s not solely a beautification project--we’re scientifically testing the hypothesis that high-density greenness mitigates the negative cardiovascular impact of climate stress. 

Our research as part of the Trager MicroForest Project will enable us to reimagine compact urban green spaces and develop a new model for urban planning and design. We will evaluate the effectiveness of an unconventional heat reduction method and identify a wide range of plant types (from groundcover to canopy trees) and configurations optimized for urban conditions with the goal of improving human health and well-being in urban settings.

Trager MicroForest Project by the Numbers

.65

Acre site

119

New trees & 242 new shrubs

750

Tons of topsoil

220

Linear feet of new pathways

Nature-based solutions, such as greening interventions, could protect human health from adverse effects of climate change. There is extensive evidence to support that one aspect of nature, greenness in the form of leaf area, is conducive to human health. Those who live in greener areas have lower levels of stress, depression, insulin resistance, diabetes and stroke. All cause cancer and cardiovascular mortality as well as increased longevity. Furthermore, many studies have shown that socioeconomically disadvantaged individuals tend to derive greater benefit from improved access to urban greenery.

Greenness may also increase human resilience independent of pollution and temperature. Higher neighborhood greenness has been linked to lower stress, better cognitive function, higher levels of physical activity and lower risk of obesity. It has been posited that spending time in nature could directly reduce mental fatigue and activate the parasympathetic nervous system to influence emotional health. In addition, plants emit compounds as part of their self-protection and communication physiology. These compounds have been shown in several human studies to have antioxidant and anti-inflammatory properties. Exposure to these plant volatile compounds may decrease mental fatigue, induce arterial relaxation and improve cognitive performance and mood. 

Although urban greenery provides many benefits, it is particularly critical to climate adaptation as it can reduce heat and lower air pollution in the urban microclimate. Plants can reduce ambient temperature via transpiration, a process that involves moving water from the ground through the roots to the stems, leaves and/or flowers where it evaporates and cools the surrounding air.

The Trager MicroForest Project will create a blend of dense forest and accessible public space. Research, prototyping and design development with a host of partners and collaborators will inform novel approaches to how we bring intense vegetation into an urban environment while creating a safe and inviting public space. 

“The members of our family are honored to support learning about the impact of scientifically planned and planted green spaces in the city we love.”

Michael Trager-Kusman Trager family member
background image

Trager MicroForest Project Updates

For more information on the project and the latest updates, visit the Envirome Institute's Urban Design Studio.