from The Trails and Greenways Clearinghouse
Tools for Conservation
As tools for conservation, trails and greenways preserve important natural landscapes, provide needed links between fragmented habitats and offer tremendous opportunities for protecting plant and animal species. Partially due to expansive development, “islands” of habitat dot the landscape, isolating wildlife and plant species and reducing habitat necessary for their survival. Trails and greenways provide important links between these island populations and habitat and increase the land available to many species.
* The preserved Pinhook Swamp between Florida’s Osceola National Forest and Georgia’s Okefenokee National Wildlife Refuge protects a vital wildlife corridor. This greenway keeps intact an important swampland ecosystem that sustains numerous wildlife species including the Florida black bear, timber rattlesnake and the Florida sandhill crane.
* In March 1999, 12,638 acres of critical wetland habitat along the Rio Grande in Cameron, Texas were added to the National Wildlife Refuge system, creating a larger ecological system needed by migratory birds.1
Improving Air Quality
Trails and greenways improve air quality by protecting the plants that naturally create oxygen and filter out air pollutants such as ozone, sulfur dioxide, carbon monoxide and airborne particles of heavy metals. According to a study conducted by David Nowak, in 1991 natural tree-related air filtration provided Chicago, Illinois with $1 million in annual air pollution removal.2
Trails and greenways link neighborhoods with shopping and entertainment districts and provide pleasant transportation alternatives for commuting to work and school. Municipalities include trails and greenways into city plans not only for recreational purposes, but also to encourage the use of alternative modes of transportation.
* A 1991 Harris Poll found that 46% of those surveyed said that they would bike to work if designated trails were built.3
* Seattle, Washington’s Burke-Gilman Trail is a popular route for commuting. A 1990 trail survey found that 37% of the bicyclists and 7% of the pedestrians used the trail for commuting.4
* A 1997 trail use study of the Iron Horse Regional Trail in California found that approximately one-third of those surveyed use the trail for transportation purposes, including commuting to work or school, or using the trail as an alternative route to access shopping areas and restaurants.5