Forest area has been relatively
stable since 1907. In 1997, 302 million hectares—
or 33 percent of the total land area of the United States—
was in forest land. Today’s forest land area amounts to
about 70 percent of the area that was forested in 1630.
Since 1630, about 120 million hectares of forest land
have been converted to other uses—mainly agricultural.
More than 75 percent of the net conversion to other uses
occurred in the 19th century.
Million hectares............
Reserved forest land has doubled since 1953 and now
stands at 7 percent of all forest land in the United States.
This reserved forest area includes State and Federal parks
and wilderness areas but does not include conservation
easements, areas protected by nongovernmental organizations,
and most urban and community parks and
reserves. Significant additions to Federal forest reserves
occurred after the passage of the Wilderness Act in 1964.........
Total area of planted and natural forest in the
Eastern United States, 1997
Planted 10.4%
16.2 million
hectares
Natural 89.6%
139.2 million
hectares
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Total area of planted and natural forest in the
Western United States, 1997
Planted 3.6%
5.3 million
hectares
Natural 96.4%
141.6 million
hectares
---------
Average growing stock volume per acre on timber land
continues to rise across the United States. The rate of
increase has leveled off, partially due to recent increases
in mortality.................
Over the past 50 years, growth has generally exceeded
removals throughout the United States. While removal
levels have leveled off in recent years, there has been a
decided shift from public land in the West to private land
in the East. In 1996, softwood removals in the South
exceeded growth for the first time since 1952, when data
were first reported...............
http://fia.fs.fed.us/library/ForestFactsMetric.pdf (PDF !)