To help local tree advocates make the case for trees in their communities, ACTrees has compiled Benefits of Trees and Urban Forests: A Research List. This research listing includes over 150 tree benefits and facts, ranging from the national to the hyper-local level, and all with complete scientific citations. This information tells the story of trees in dollars and cents, in pounds and percents, with compelling data about why maintaining and growing a healthy urban forest is a smart, sustainable investment. Learn more.
And check out other current research that may be of interest to those in the urban greening community. For a full list of research, visit the Research Archive.
By Kevin M. Potter and William W. Hargrove
Asheville, NC (September 3, 2013) — Changing climate may pose a threat to forest tree species, forcing three potential population-level responses: toleration/adaptation, movement to suitable environmental conditions, or local extirpation.
Storrs, CT (February 18, 2014) — In Connecticut, about 80% to 90% of power outages during storms are caused by trees that fail. In recent significant storms, Connecticut lost an estimated nearly 2% of its trees and, subsequently, its power. Downed trees as a result of storms can knock down power lines and block transportation corridors, so scientists at UConn are studying why trees fail, and how they can be made stronger.
By Noelwah R. Netusil, Zachary Levin, Vivek Shandas, and Ted Hart
Portland, OR (February 2014) — This study uses the hedonic price method to examine if proximity, abundance, and characteristics of green street facilities affect the sale price of single-family residential properties in Portland, Oregon.
University Park, PA (February 13, 2014) — Female Asian longhorned beetles lure males to their locations by laying down sex-specific pheromone trails on tree surfaces, according to an international team of researchers. The finding could lead to the development of a tool to manage this invasive pest that affects about 25 tree species in the United States.
By Mikaela Schmitt-Harsh, Sarah K. Mincey, Matt Patterson, Burnell C. Fischer, and Tom P. Evans
Bloomington, IN (February 24, 2014) — This new research examines the private residential urban forests of Bloomington, Indiana, and the carbon storage services they provide. Results demonstrate that sustaining tree-produced ecosystem services requires maintenance of large old trees and species diversity.
David, CA (February 13, 2014) — What are the most feasible ways to make shady parking lots a reality? Tree Davis has released a new report reviewing parking lot shade regulations for the City of Davis and other communities. Trees in parking lots have multiple benefits including improved air and water quality, aesthetics, and property value. The report reviews the current state of parking lots in Davis and addresses challenges to creating shaded parking lots in all communities.
By Rebecca J. McLain, Patrick T. Hurley, Marla R. Emery, and Melissa R. Poe
Portland, OR (February 6, 2014) — Recent “green” planning initiatives envision food production, including urban agriculture and livestock production, as desirable elements of sustainable cities. Researchers use an integrated urban political ecology and human-plant geographies framework to explore how foraging for “wild” foods in cities, a subversive practice that challenges prevailing views about the roles of humans in urban green spaces, has potential to also support sustainability goals.
By Jessica R. Sanders, James W. Woodworth Jr., and Joesph E. Duszak
Washington, DC (November 25, 2013) — Washington D.C. is home to many historic elm corridors managed in close partnership between numerous urban forestry stakeholders. In recent years, the city’s elms have been used as part of streetscape revitalization initiatives due to their quick-growing nature. The use of a popular Ulmus americana cultivar, Princeton, has brought about notable challenges in urban tree management.
By Jessica Sanders and Jason Grabosky
New Brunswick, NJ (January 28, 2014) — Urban conditions have been thought to affect tree growth, but there is little conclusive evidence as to the severity of those influences or how various species respond differentially to urban stress. This research looked at a variety of tree species grown in parking lots and found that reductions in tree size were consistently associated with reduced apparent soil access. (more…)
By Meghan T. Holtan, Susan L. Dieterlen, and William C. Sullivan
Baltimore, MD (January 27, 2014) — To what extent does the density of the tree cover in a city relate to the amount of social capital among neighbors? A lot, it turns out.