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Publications & Products

Carbon in United States Forests and Wood Products, 1987-1997: State-by-State Estimates
by Richard A. Birdsey & George M. Lewis

Alaska Estimate for 1987-1997

Table 1. Area by land class (1000 ac).
Land class
1987
1992
1997
Average Annual Change
 
1987-1992
1992-1997
1987-1997
Timberland
15,763
14,079
12,395
-337
-337
-337
Other forest land
105,240
105,194
105,148
-9
-9
-9
Reserved timberland
8,042
8,939
9,836
179
179
179
TOTAL
129,045
128,212
127,380
-167
-167
-167
 
Table 2. Area of forest land by forest type (1000 ac).
Forest type
1987
1992
1997
Average Annual Change
 
1987-1992
1992-1997
1987-1997
Douglas-fir
0
0
0
0
0
0
Ponderosa pine
0
0
0
0
0
0
Western white pine
0
0
0
0
0
0
Fir-spruce
42,757
41,587
40,418
-234
-234
-234
Hemlock-Sitka spruce
12,587
12,571
12,556
-3
-3
-3
Larch
0
0
0
0
0
0
Lodgepole pine
113
113
113
0
0
0
Redwood
0
0
0
0
0
0
Other Hardwoods
10,173
10,245
10,317
14
14
14
Other forest types
62,703
62,835
62,968
26
26
26
Pinyon-juniper
0
0
0
0
0
0
Chaparral
0
0
0
0
0
0
Non-stocked
712
860
1,008
30
30
30
Unused
0
0
0
0
0
0
TOTAL
129,045
128,212
127,380
-167
-167
-167
 
Table 3. Total carbon stock on forest land and annual change by forest type (MMTC).
Forest type
1987
1992
1997
Average Annual Change
 
1987-1992
1992-1997
1987-1997
Douglas-fir
0.0
0.0
0.0
0.00
0.00
0.00
Ponderosa pine
0.0
0.0
0.0
0.00
0.00
0.00
Western white pine
0.0
0.0
0.0
0.00
0.00
0.00
Fir-spruce
3,471.6
3,360.6
3,251.9
-22.20
-21.74
-21.97
Hemlock-Sitka spruce
1,064.0
1,066.2
1,068.2
0.44
0.41
0.42
Larch
0.0
0.0
0.0
0.00
0.00
0.00
Lodgepole pine
7.0
7.0
7.0
0.00
0.00
0.00
Redwood
0.0
0.0
0.0
0.00
0.00
0.00
Other Hardwoods
627.2
641.8
656.6
2.93
2.96
2.94
Other forest types
4,927.1
4,965.9
5,004.9
7.77
7.80
7.78
Pinyon-juniper
0.0
0.0
0.0
0.00
0.00
0.00
Chaparral
0.0
0.0
0.0
0.00
0.00
0.00
Non-stocked
57.3
67.9
78.6
2.13
2.14
2.14
Unused
0.0
0.0
0.0
0.00
0.00
0.00
TOTAL
10,154.1
10,109.5
10,067.3
-8.93
-8.44
-8.68
 
Table 4. Total carbon stock on forest land and annual change by accounting component (MMTC).
Accounting component
1987
1992
1997
Average Annual Change
 
1987-1992
1992-1997
1987-1997
Biomass
2,136.9
2,129.8
2,122.8
-1.41
-1.40
-1.40
Forest floor and coarse woody debris
2,913.9
2,882.5
2,853.6
-6.28
-5.78
-6.03
Soils
5,092.5
5,084.1
5,075.9
-1.67
-1.64
-1.66
Wood products and landfills
10.9
13.1
15.0
0.44
0.38
0.41
TOTAL
10,154.1
10,109.5
10,067.3
-8.93
-8.44
-8.68
 
Table 5. Total carbon stock on forest land and annual change by owner (MMTC).
Owner group
1987
1992
1997
Average Annual Change
 
1987-1992
1992-1997
1987-1997
National Forest
937.1
928.3
918.9
-1.77
-1.87
-1.82
Other Public
6,217.0
6,259.7
6,302.7
8.56
8.59
8.57
Forest Industry
0.0
0.0
0.0
0.00
0.00
0.00
Other Private
3,000.0
2,921.5
2,845.7
-15.71
-15.16
-15.44
TOTAL
10,154.1
10,109.5
10,067.3
-8.93
-8.44
-8.68
 
Table 6. Change in total carbon stock on forest land attributed to land use change (MMTC).
Accounting component
1987
1992
1997
Average Annual Change
 
1987-1992
1992-1997
1987-1997
Biomass
0.0
-11.3
-22.0
-2.26
-2.15
-2.20
Forest floor and coarse woody debris
0.0
-7.7
-15.2
-1.53
-1.50
-1.52
Soils
0.0
-9.8
-19.7
-1.96
-1.97
-1.97
Wood products and landfills
0.0
0.2
0.7
0.04
0.09
0.07
TOTAL
0.0
-28.6
-56.2
-5.72
-5.53
-5.62

 


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