Volume of Growing-Stock Trees per Acre of Timberland, 2002
This map shows the spatial distribution of the region's volume of growing stock trees in 2002 as a percentage of county timberland area. Regionally, on average, by county, growing stock volume averages 1,122 cubic feet per acre of timberland.
Use this map only to identify broad spatial trends. At the time of assessment, data were not available for interior Alaska, the Pacific Basin, Puerto Rico, U.S. Virgin Islands, and a small number of counties in the lower 48 states
USDA Forest Service, 2002 RPA data, available at: http://www.fia.fs.fed.us/tools-data/
USDA Forest Service, Forest Inventory and Analysis.
USDA Forest Service, 2002 RPA data and the National Atlas of the United States.
Timberland is defined as forest land capable of producing crops of industrial wood (20 cubic feet per acre per year in natural stands) that is not withdrawn from timber utilization by statute or administrative regulation.
Growing stock trees are live trees of commercial species which meet specified standards of quality and vigor. Trees classified as growing stock are commercial species of good form that are at least 5.0 inches diameter breast height (dbh) (4.5 feet).Cull trees are excluded.
Last Modified: 03/29/2007