Magazine article American Forests

DC Green. (News from the World of Trees)

Magazine article American Forests

DC Green. (News from the World of Trees)

Article excerpt

The results are in on a study of tree canopy in a 634-square-mile area in and around Washington, DC. AMERICAN FORESTS used high-resolution satellite imagery and its CITYgreen desktop Geographic Information System software to calculate the tree cover and its overall benefits. The analysis and a "green infrastructure" data layer were created for use by decisionmakers in 103 area communities, including the District of Columbia.

The data show that about 48 percent (177,832 acres) of the DC Metro area is covered by trees (45 percent when federal lands such as national parks are excluded). Impervious surfaces such as buildings, streets, or parking lots make up about 28 percent (108,151 acres), about 17 percent is open space (68,401 acres), 7 percent is bare soil (26,788 acres), and 3 percent is water (10,217 acres).

The District had a 31 percent tree cover when federal lands were included, 22 percent when they were not.

The DC area's urban forest is able to provide 998 million cubic feet in avoided storage of stormwater, a value of $1.96 billion, and remove 19. …

Search by... Author
Show... All Results Primary Sources Peer-reviewed

Oops!

An unknown error has occurred. Please click the button below to reload the page. If the problem persists, please try again in a little while.