Featured Research

from universities, journals, and other organizations

Indianapolis Trees Provide $5.7 Million In Benefits To Local Area

Date:
May 15, 2008
Source:
US Forest Service, Pacific Southwest Research Station
Summary:
US Forest Service scientists with the Center for Urban Forest Research have completed a study that found planting and nurturing Indianapolis street trees brought a 500 percent return in benefits from storm water reduction, energy conservation, cleaner air and increased property values.

U.S. Forest Service scientists with the Center for Urban Forest Research have completed a study that found planting and nurturing Indianapolis street trees brought a 500 percent return in benefits from storm water reduction, energy conservation, cleaner air and increased property values.

The researchers evaluated more than 117,000 trees the Indianapolis Parks and Recreation Forestry Section manages and found every $1 spent brought a $6.09 return.

"Indianapolis' urban forest is uniquely diverse, with only one of over 170 species representing slightly more than 10 percent of the total tree population," said Greg McPherson, Center for Urban Forest Research director and one of the study's authors. "This diversity is important because it puts the forest at less risk of catastrophic losses from disease or pests."

Scientists involved in the study found Indianapolis trees annually intercept 318.9 million gallons of rainfall, which they estimate to be worth $1.98 million or $17 per tree per year.

The trees also annually cut electricity use by more than 6,447 megawatt hours, worth $432,000. They reduce natural gas use by more than 150,000 therms, bringing annual benefits worth $165,000 or $5 per tree.

Each tree annually removes 1.5 pounds of air pollutants, valued at $2 per tree or $212,000, according to the scientists. They also estimated the trees increased property values and provided less tangible benefits worth $2.9 million or on average $24 per tree.

The total annual benefit of Indianapolis trees vary by species and size. For example, the city's 16,371 silver maples produce the highest level of benefit at $60 per tree or 17 percent of the total citywide benefit. But, they are also the most expensive tree to manage because many are near the end of their productive lives and require removal or intensive care.

Scientists analyzed 2005 expenditures and found Indianapolis spends about $940,000 in a typical year planting new trees and maintaining existing ones. The biggest single cost and more than half the annual budget was for tree removal at $491,000, followed by pruning at $122,000. Overall, the annual return for the planting, care and management of the 117,525 trees in the study reached nearly $5.7 million.

"Indianapolis citizens receive substantial environmental and aesthetic benefits from these trees, but the urban forest is at a critical juncture," McPherson said. "The city has many mature trees that need to be removed. In fact, tree mortality rates now outpace tree planting."

McPherson said the city spends comparatively little on tree care at $8 per tree. This is less than half the 1997 mean value of $19 per tree reported for 256 California cities. It is also less than a quarter of the $25 per tree average for the 19 U.S. cities McPherson and his Center for Urban Forest Research colleagues previously studied.

Their study is entitled "City of Indianapolis, Indiana, Municipal Forest Resource Analysis" and can be downloaded for free from the Center For Urban Forest Research website at: http://www.fs.fed.us/psw/programs/cufr/products/psw_cufr738_IND_MFRA.pdf


Story Source:

The above story is based on materials provided by US Forest Service, Pacific Southwest Research Station. Note: Materials may be edited for content and length.


Cite This Page:

US Forest Service, Pacific Southwest Research Station. "Indianapolis Trees Provide $5.7 Million In Benefits To Local Area." ScienceDaily. ScienceDaily, 15 May 2008. <www.sciencedaily.com/releases/2008/05/080515092618.htm>.
US Forest Service, Pacific Southwest Research Station. (2008, May 15). Indianapolis Trees Provide $5.7 Million In Benefits To Local Area. ScienceDaily. Retrieved July 29, 2014 from www.sciencedaily.com/releases/2008/05/080515092618.htm
US Forest Service, Pacific Southwest Research Station. "Indianapolis Trees Provide $5.7 Million In Benefits To Local Area." ScienceDaily. www.sciencedaily.com/releases/2008/05/080515092618.htm (accessed July 29, 2014).

Share This




More Plants & Animals News

Tuesday, July 29, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Deadly Ebola Virus Threatens West Africa

Deadly Ebola Virus Threatens West Africa

AP (July 28, 2014) West African nations and international health organizations are working to contain the largest Ebola outbreak in history. It's one of the deadliest diseases known to man, but the CDC says it's unlikely to spread in the U.S. (July 28) Video provided by AP
Powered by NewsLook.com
Traditional African Dishes Teach Healthy Eating

Traditional African Dishes Teach Healthy Eating

AP (July 28, 2014) Classes are being offered nationwide to encourage African Americans to learn about cooking fresh foods based on traditional African cuisine. The program is trying to combat obesity, heart disease and other ailments often linked to diet. (July 28) Video provided by AP
Powered by NewsLook.com
Asteroid's Timing Was 'Colossal Bad Luck' For The Dinosaurs

Asteroid's Timing Was 'Colossal Bad Luck' For The Dinosaurs

Newsy (July 28, 2014) The asteroid that killed the dinosaurs struck at the worst time for them. A new study says that if it hit earlier or later, they might've survived. Video provided by Newsy
Powered by NewsLook.com
Raw: Sea Turtle Hatchlings Emerge from Nest

Raw: Sea Turtle Hatchlings Emerge from Nest

AP (July 27, 2014) A live-streaming webcam catches loggerhead sea turtle hatchlings emerging from a nest in the Florida Keys. (July 27) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins