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Kansas' Forest Resources, 2008
From Forest Service, US Department of
Agriculture Northern Research Station
This publication provides an overview of
forest resource attributes for Iowa based on an annual inventory (2004-2008)
conducted by the Forest Inventory and Analysis (FIA) program of the U.S. Forest
Service, Northern Research Station.
These estimates, along with web posted core tables, are updated annually.
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Table 1. - Annual estimates, uncertainty, and change |
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2008
Estimate |
Sampling error (%) |
Change
since 2003 (%) |
2003
Estimate |
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Forest Land Estimates |
| Area (1,000 acres) |
2,229.9 |
3.3 |
0.1 |
2,227.3 |
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Number of live trees 1-inch diameter or
larger (1,000,000 trees) |
752.8 |
5.3 |
-0.9 |
759.9 |
| Biomass of live trees
1-inch diameter or larger (1,000 tons) |
78,172.9 |
4.7 |
2.0 |
76,622.2 |
| Net volume of live trees
(1,000,000 ft3) |
2,931.9 |
5.6 |
1.7 |
2,882.7 |
| Annual net growth of live
trees (1,000 ft3/year) |
52,633.2 |
19.3 |
na |
na |
| Annual mortality of live
trees (1,000 ft3/year) |
43,786.5 |
14.0 |
na |
na |
| Annual harvest removals of
live trees (1,000 ft3/year) |
7,272.3 |
47.4 |
na |
na |
| Annual other removals of
live trees (1,000 ft3/year) |
9,897.8 |
30.9 |
na |
na |
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Timberland Estimates |
| Area (1,000 acres) |
2,107.6 |
3.5 |
-1.1 |
2,131.2 |
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Number of live trees 1-inch diameter or
larger (1,000,000 trees) |
686.9 |
5.3 |
-3.8 |
713.9 |
| Biomass of live trees
1-inch diameter or larger (1,000 tons) |
75,254.8 |
4.9 |
1.5 |
74,176.8 |
| Net volume of live trees
(1,000,000 ft3) |
2,853.2 |
5.8 |
1.6 |
2,809.0 |
| Net volume of
growing-stock trees (1,000,000 ft3) |
1,455.8 |
8.1 |
-2.5 |
1,493.3 |
| Annual net growth of
growng-stock trees (1,000 ft3/year) |
23,657.9 |
30.6 |
na |
na |
| Annual mortality of
growing-stock trees (1,000 ft3/year) |
16,196.8 |
22.9 |
na |
na |
| Annual harvest removals of
growing-stock trees (1,000 ft3/year) |
2,089.2 |
96.6 |
na |
na |
| Annual other removals of
growing-stock trees (1,000 ft3/year) |
4,928.8 |
35.5 |
na |
na |
| Note: Sampling
errors and error bars shown in the tables and figures in this report
represent 68% confidence intervals for the estimated values.
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Table 2. - Top 10 tree species by
statewide volume estimates |
| Rank |
Species |
Volume
of live trees
on forest land (1,000,000 ft3) |
Sampling
error
(%) |
Change
since
2003(%) |
Volume
of sawtimber trees on timberland (1,000,000
bd ft) |
Sampling
error
(%) |
Change
since
2003 (%) |
| 1 |
Cottonwood |
395.1 |
27.6 |
13.6 |
1,210.1 |
30.6 |
5.4 |
| 2 |
Hackberry |
381.5 |
11.4 |
7.9 |
821.0 |
15.8 |
-0.2 |
| 3 |
Green ash |
221.1 |
11.9 |
0.0 |
359.9 |
17.1 |
-21.4 |
| 4 |
American elm |
216.9 |
9.2 |
-8.1 |
169.6 |
25.4 |
1.1 |
| 5 |
Osage-orange |
203.4 |
11.9 |
7.8 |
0.0 |
0.0 |
0.0 |
| 6 |
Black walnut |
169.0 |
11.1 |
-3.2 |
373.0 |
15.4 |
3.1 |
| 7 |
Bur oak |
143.7 |
19.2 |
-17.2 |
363.9 |
26.7 |
-13.2 |
| 8 |
Red mulberry |
125.6 |
15.8 |
-0.8 |
55.8 |
55.7 |
13.4 |
| 9 |
American sycamore |
113.2 |
42.2 |
7.0 |
548.5 |
45.5 |
21.0 |
| 10 |
Honeylocust |
104.9 |
16.2 |
-7.7 |
64.1 |
41.7 |
-14.3 |
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Other softwood species |
89.7 |
16.0 |
-13.2 |
71.6 |
33.1 |
-61.4 |
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Other hardwood species |
767.7 |
7.9 |
4.0 |
1,399.9 |
13.4 |
1.3 |
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All species |
2,931.9 |
5.6 |
1.7 |
5,437.3 |
10.0 |
-1.5 |
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