All
Live Merchantable Hardwood Tree Biomass per Acre of Timberland, 2002
Description
This map shows the spatial distribution of all live merchantable
hardwood tree biomass in tons per acre of timberland by county.
On average, by county, there are 20 tons of merchantable hardwood
biomass 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.
Sources:
USDA Forest Service, 2002 RPA data, available at: http://fia.fs.fed.us/tools-data/tools/.
Distributor:
USDA Forest Service, Forest Inventory and Analysis.
Layers:
USDA Forest Service, 2002 RPA data and the National Atlas
of the United States.
Definitions:
Merchantable biomass is defined as the total ovendry, gross biomass
(including bark) of a tree 5.0 inches DBH or larger from a 1-foot
stump to a minimum 4-inch top DOB of the central stem.
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