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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

Iowa Estimate for 1987-1997

Timberland
1,459
1,701
1,944
48
48
48
Other forest land
27
23
19
-1
-1
-1
Reserved timberland
76
82
88
1
1
1
White-red-jack pine
0
3
6
1
1
1
Spruce-fir
0
0
0
0
0
0
Longleaf-slash pine (planted)
0
0
0
0
0
0
Longleaf-slash pine (natural)
0
0
0
0
0
0
Loblolly-shortleaf pine (planted)
0
0
0
0
0
0
Loblolly-shortleaf pine (natural)
0
12
24
2
2
2
Oak-pine
35
31
26
-1
-1
-1
Oak-hickory
871
914
957
9
9
9
Oak-gum-cypress
0
0
0
0
0
0
Elm-ash-cottonwood
438
486
535
10
10
10
Maple-beech-birch
143
318
492
35
35
35
Aspen-birch
8
8
7
0
0
0
Other forest types
0
0
0
0
0
0
Non-stocked
67
35
3
-6
-6
-6
White-red-jack pine
0.0
0.2
0.4
0.04
0.04
0.04
Spruce-fir
0.0
0.0
0.0
0.00
0.00
0.00
Longleaf-slash pine (planted)
0.0
0.0
0.0
0.00
0.00
0.00
Longleaf-slash pine (natural)
0.0
0.0
0.0
0.00
0.00
0.00
Loblolly-shortleaf pine (planted)
0.0
0.0
0.1
0.01
0.01
0.01
Loblolly-shortleaf pine (natural)
0.0
0.5
1.0
0.09
0.10
0.10
Oak-pine
2.1
1.4
0.7
-0.14
-0.14
-0.14
Oak-hickory
71.5
73.8
76.1
0.46
0.47
0.46
Oak-gum-cypress
0.0
5.3
10.5
1.05
1.05
1.05
Elm-ash-cottonwood
39.7
37.4
35.1
-0.47
-0.46
-0.46
Maple-beech-birch
16.1
20.1
24.0
0.81
0.78
0.79
Aspen-birch
0.7
0.6
0.6
-0.01
-0.01
-0.01
Other forest types
9.2
9.3
9.4
0.02
0.02
0.02
Non-stocked
4.4
2.3
0.2
-0.42
-0.42
-0.42
Biomass
30.5
35.4
40.4
0.99
0.99
0.99
Forest floor and coarse woody debris
12.4
14.6
16.7
0.44
0.42
0.43
Soils
76.7
76.6
76.4
-0.03
-0.02
-0.03
Wood products and landfills
24.1
24.3
24.6
0.04
0.06
0.05
National Forest
0.0
0.0
0.0
0.00
0.00
0.00
Other Public
15.4
17.8
20.2
0.47
0.48
0.48
Forest Industry
0.0
0.0
0.0
0.00
0.00
0.00
Other Private
128.2
133.1
137.9
0.98
0.96
0.97
Biomass
0.0
0.2
1.7
0.03
0.30
0.17
Forest floor and coarse woody debris
0.0
-0.2
-0.3
-0.03
-0.03
-0.03
Soils
0.0
-0.5
-1.0
-0.10
-0.10
-0.10
Wood products and landfills
0.0
0.3
0.6
0.06
0.05
0.06