Results 261 to 270 of about 45,154 (298)
Some of the next articles are maybe not open access.
Assessing urban forest effects and values, Philladelphia's urban forest
2007An analysis of trees in Philadelphia reveals that this city has about 2.1 million trees with canopies that cover 15.7 percent of the area. The most common tree species are black cherry, crabapple, and tree of heaven. The urban forest currently stores about 530,000 tons of carbon valued at $9.8 million.
David J. Nowak +4 more
openaire +1 more source
Monitoring urban forest health
Environmental Monitoring and Assessment, 1993Renewed interest in urban forestry has resulted in significant public investment in trees during the past few years, yet comprehensive urban forest monitoring programs are uncommon. Monitoring is an integral component of a program to sustain healthy community forests and long term flows of net benefits. Volunteer-based monitoring will promote continued
openaire +2 more sources
Assessing urban forest effects and values: Morgantown's Urban Forest
2012An analysis of the community forest in Morgantown, WV, was undertaken in 2004 to characterize the structural and functional attributes of this forest resource. The assessment revealed that this city has about 658,000 trees with canopies that cover 35.5 percent of the area. The most common tree species are sugar maple, black cherry, and hawthorn.
David J. Nowak +6 more
openaire +1 more source
Assessing urban forest effects and values: Toronto's urban forest
2013An analysis of trees in Toronto, Ontario, reveals that this city has about 10.2 million trees with a tree and shrub canopy that covers approximately 26.6 percent of the city. The most common tree species are eastern white-cedar, sugar maple, and Norway maple. The urban forest currently stores an estimated 1.1 million metric tons of carbon valued at CAD$
David J. Nowak +8 more
openaire +1 more source
Assessing urban forest effects and values, Chicago's urban forest
2010An analysis of trees in Chicago, IL, reveals that this city has about 3,585,000 trees with canopies that cover 17.2 percent of the area. The most common tree species are white ash, mulberry species, green ash, and tree-of-heaven. Chicago's urban forest currently stores about 716,000 tons of carbon valued at $14.8 million.
David J. Nowak +4 more
openaire +1 more source
Ozone and urban forests in Italy
Environmental Pollution, 2009Ozone levels along urban-to-rural gradients in three Italian cities (Milan, Florence, Bari) showed that average AOT40 values at rural and suburban sites were 2.6 times higher than those determined at urban sites. However, O(3) also exceeded the European criteria to protect forest health at urban sites, even when the standards for human health ...
openaire +4 more sources
Assessing urban forest effects and values, Scranton's urban forest
2010An analysis of trees in the urbanized portion of Scranton, PA, reveals that this area has about 1.2 million trees with canopies that cover 22.0 percent of the area. The most common tree species are red maple, gray birch, black cherry, northern red oak, and quaking aspen. Scranton's urban forest currently store about 93,300 tons of carbon valued at $1.9
David J. Nowak +4 more
openaire +1 more source
Assessing urban forest effects and values, Los Angeles' urban forest
2011An analysis of trees in Los Angeles, CA, reveals that this area has about 6 million trees with tree and shrub canopies that cover 24.9 percent of the city. The most common tree species are Italian cypress, scrub oak, laurel sumac, Mexican fan palm, and Indian laurel, Trees in Los Angeles currently store about 1.3 million tons of carbon (4.7 million ...
David J. Nowak +4 more
openaire +1 more source
2013
Although the usual justification for urban forestry investment is the benefit to the environment, we now know that trees serve other functions, particularly for local economies and public health.
openaire +1 more source
Although the usual justification for urban forestry investment is the benefit to the environment, we now know that trees serve other functions, particularly for local economies and public health.
openaire +1 more source
Issues for urban trees and the urban forest
Arboricultural Journal, 2013With trees and woods under increasing pressure from environmental changes (climate, air pollution, urbanisation, extreme weather events and more), researchers and practitioners seek to balance issu...
openaire +1 more source