Navigation Links
Urban Forests Disappearing: Report
Date:3/1/2012

THURSDAY, March 1 (HealthDay News) -- An estimated 4 million trees are disappearing from urban areas in the United States each year, a new study found.

A little less than 1 percent of urban tree cover is being lost annually.

Researchers from the U.S. Forest Service used satellite imagery to analyze the amount of tree cover compared to the amount of land covered by pavement, rooftops, grass or bare soil in 20 U.S. cities. They found tree cover declined in 17 of the cities, most markedly in New Orleans, Houston and Albuquerque, N.M. (New Orleans's tree loss, however, is most likely due to the devastation of Hurricane Katrina in 2005, the researchers noted.)

"Trees are an important part of the urban landscape," Michael Rains, director of the Forest Service's Northern Research Station, said in a Forest Service news release. "They play a role in improving air and water quality and provide so many environmental and social benefits."

Trees also have an economic benefit: helping reduce heating and cooling costs.

"Our urban forests are under stress, and it will take all of us working together to improve the health of these crucial green spaces," U.S. Forest Service Chief Tom Tidwell said in the news release.

The researchers encouraged more tree-planting efforts to help stop the loss.

"Tree cover loss would be higher if not for the tree-planting efforts cities have undertaken in the past several years," said the Forest Service's David Nowak, who authored the study with his colleague, Eric Greenfield. "Tree planting campaigns are helping to increase, or at least reduce the loss of, urban tree cover, but reversing the trend may demand more widespread, comprehensive and integrated programs that focus on sustaining overall tree canopy."

The study, which was published in Urban Forestry & Urban Greening, showed that 16 cities had an increase in "impervious" cover, that is, pavement and rooftops. The cities with the greatest increase in impervious cover were Los Angeles, Houston and Albuquerque.

Of the 20 cities studied, Atlanta had the most tree cover (54 percent), while Denver had the least (10 percent). New York City led all cities in impervious cover (61 percent), while Nashville had the least (18 percent).

Syracuse, N.Y., was the only city in the study to show an increase in tree cover. Researchers said, however, the increase was due to the proliferation of European buckthorn, an invasive shrub from Europe.

More information

The U.S. Department of Agriculture provides more information on urban and community forestry.

-- Mary Elizabeth Dallas

SOURCE: U.S. Forest Service, news release, Feb. 23, 2012


'/>"/>
Copyright©2010 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. Pinpointing immune system disturbances in celiac disease
2. Coffee Drinking and Caffeine Associated With Reduced Risk of Hospitalization for Heart Rhythm Disturbances
3. Hepatitis C treatment less effective in urban minority patients
4. Slumdog Millionaire Put Spotlight on Slums in Developing World Now, Health Visionary Helps Turn Urban Blight into Hope
5. Perception of poor sleep may predict postpartum mood disturbances in healthy new mothers
6. The association between sleep disturbances and reduced quality of life varies by race
7. Resistant Ringworm Common in Urban Elementary Schools
8. Childrens cognitive ability can be affected by mothers exposure to urban air pollutants
9. Sleep disturbances associated with behavior problems in children with autism
10. Higher blood pressure found in people living in urban areas
11. AthletiCo's Champaign-Urbana Physical Therapy Center Relocates to 2040 S. Neil in Champaign
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/2/2016)... ... December 02, 2016 , ... More than 100 ... are expected to attend the UNCF Dothan-Wiregrass Mayor’s Luncheon Dec. 9, 2016. This ... area students and operating support to UNCF-member institutions, including Miles College, Oakwood University, ...
(Date:12/2/2016)... ... 02, 2016 , ... Center for Autism and Related Disorders (CARD) Portland today ... spectrum disorder (ASD) and other developmental disabilities. The group, which is being launched with ... caregivers the opportunity to share stories and advice, seek help, and continue their education ...
(Date:12/2/2016)... ... ... With the number of pain management programs available for people suffering with constant ... works for them. When an inventor from Suisun City, Calif., was unsuccessful in finding ... it with others. , He developed a prototype for PRO GO MASSAGE to relieve ...
(Date:12/2/2016)... ... December 02, 2016 , ... More than half of ... 84 percent of parents report speaking with their child about sex related topics, less ... diseases. , Mediaplanet is proud to announce the launch of its second edition of ...
(Date:12/2/2016)... ... December 02, 2016 , ... The PAINWeekEnd ... Beach Resort and Spa in Honolulu, offering local frontline clinicians the opportunity to ... , The demand for supplemental training related to pain management has surged ...
Breaking Medicine News(10 mins):
(Date:12/2/2016)... BRUSSELS , Dec. 2, 2016  UCB is pleased to ... presentation at the upcoming 70 th American Epilepsy Society ... Houston, TX , USA. 1-12 ... safety and efficacy profile of VIMPAT ® (lacosamide) CV ... also share findings on the current state of the union ...
(Date:12/2/2016)... NEW YORK , December 2, 2016 ... some of its past losses following Trump,s victory early ... growth potential, and fund managers are now predicting an ... look at four equities to see how they have ... CLDX ), Amicus Therapeutics Inc. (NASDAQ: ...
(Date:11/30/2016)... -- Research and Markets has announced the addition of ... report to their offering. ... Detachable coil embolization is a minimally ... detachable coil embolization treatment of cerebral aneurysms is less invasive and requires ... in the wall of an artery in the brain. This area bulges ...
Breaking Medicine Technology: