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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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Publications & Products
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 2a. Area of forest land by region and forest class, conterminous U.S., 1907-19971.

Region and 1907 1938 1953 1963 1977 1987 1997
forest class
(million ha)
Northeast
    Timberland
23.0
27.9
29.6
31.5
31.8
32.3
31.9
    Reserved forest land
0.9
1.1
1.1
1.1
1.6
1.7
2.0
    Other forest land
0.2
0.3
0.3
0.4
0.8
0.5
0.6
    Total forest land
24.1
29.2
31.0
33.0
34.1
34.5
34.6
North Central
    Timberland
30.9
33.8
32.9
31.9
30.3
30.2
32.6
    Reserved forest land
0.3
0.4
0.3
0.4
0.8
1.2
1.2
    Other forest land
0.8
0.9
0.9
1.7
1.3
1.1
0.6
    Total forest land
32.0
35.1
34.1
34.1
32.3
32.5
34.3
Southeast
    Timberland
35.7
33.8
36.0
36.8
35.5
34.5
34.3
    Reserved forest land
0.3
0.3
0.3
0.3
0.6
0.8
1.1
    Other forest land
1.3
1.2
1.3
1.2
0.5
0.6
0.5
     Total forest land
37.2
35.3
37.6
38.3
36.6
35.8
35.9
South Central
    Timberland
50.5
47.1
46.7
47.6
45.2
45.4
47.0
    Reserved forest land
0.2
0.2
0.2
0.2
0.4
0.7
0.5
    Other forest land
7.5
7.0
6.9
6.3
5.6
3.6
3.3
    Total forest land
58.2
54.3
53.8
54.1
51.2
49.6
50.8
Great Plains
    Timberland
2.1
1.9
1.6
1.6
1.5
1.4
1.7
    Reserved forest land
0.0
0.0
0.0
0.0
0.0
0.0
0.0
    Other forest land
0.6
0.6
0.5
0.4
0.3
0.3
0.2
    Total forest land
2.7
2.5
2.1
1.9
1.8
1.7
1.9
Intermountain
    Timberland
26.4
25.8
25.3
25.5
22.9
23.3
27.0
    Reserved forest land
5.6
5.5
5.4
5.8
6.2
6.6
7.3
    Other forest land
25.4
24.9
24.4
23.5
25.0
24.9
21.7
    Total forest land
57.4
56.3
55.2
54.9
54.1
54.8
56.0
Pacific Coast
    Timberland
27.3
26.8
25.1
25.0
23.6
22.8
23.9
    Reserved forest land
3.0
2.9
2.7
2.6
3.2
4.1
4.8
    Other forest land
12.3
12.1
11.3
11.4
10.8
9.4
7.7
    Total forest land
42.5
41.8
39.1
39.0
37.7
36.7
36.5
Conterminous U.S.
    Timberland
195.7
197.2
197.3
199.9
190.9
189.8
198.5
    Reserved forest land
10.4
10.4
10.2
10.6
12.8
15.1
16.9
    Other forest land
48.1
46.9
45.5
44.8
44.2
40.3
34.6
    Total forest land
254.2
254.4
253.0
255.3
247.9
245.6
250.0
1 From Smith et al. 2001 and other USDA Forest Service reports. 


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.


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