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The Potential of U.S. Forest Soils to Sequester Carbon and Mitigate the Greenhouse Effect

Metric Unit Data

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Chapter 2: Current and Historical Trends in Use, Management and Disturbance of United States Forest Lands-Metric Unit Data
by Richard A. Birdsey & George M. Lewis

Table 13. Area of old timberland in the Eastern U.S., by region and forest type, 19971.

 
White-red-jack pine
11.3
2.7
142.9
50.6
49.0
256.4
Spruce-fir
0.0
0.0
435.8
360.6
0.0
796.4
Longleaf-slash pine (planted)
0.0
0.0
0.0
0.0
0.0
0.0
Longleaf-slash pine (natural)
4.9
0.0
0.0
0.0
0.0
4.9
Loblolly-shortleaf pine (planted)
0.0
0.0
0.0
0.0
0.0
0.0
Loblolly-shortleaf pine (natural)
18.2
49.0
6.9
3.2
0.0
77.3
Oak-pine
58.3
69.6
38.4
14.6
0.0
180.8
Oak-hickory
448.0
1,641.8
492.1
794.8
0.0
3,376.7
Oak-gum-cypress
265.5
116.7
1.2
6.5
0.0
389.9
Elm-ash-cottonwood
5.0
92.0
23.1
150.9
0.0
271.0
Maple-beech-birch
15.2
92.9
681.5
635.4
0.0
1,424.9
Aspen-birch
0.0
0.0
26.3
59.5
0.0
85.8
Other forest types
0.0
0.0
0.0
0.0
0.0
0.0
Nonstocked
1.2
0.0
0.0
0.0
0.0
1.2
1 From Smith et al. 2001. Old timberland includes areas with an age of 100 years and greater. 
 Uneven-aged forest land is excluded.
2 For the Great Plains, white-red-jack pine includes Ponderosa pine and White pine.


Users of these tables are kindly requested to cite their source:
Birdsey, Richard A.; Lewis, George M. 2002. Current and Historical Trends in Use,
Management and Disturbance of United States Forest Lands. IN: Kimble, John et al. (eds.),
The Potential of U.S. Forest Soils to Sequester Carbon and Mitigate the Greenhouse Effect.
Boca Raton, Florida: CRC Press. XXX p.