 |
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 19. Average area affected
by selected insects and diseases, by region of the Eastern U.S.,
1986-19971.
|
Gypsy
|
Southern
|
Spruce
|
Fusiform
|
| |
moth
|
pine beetle
|
budworm
|
rust
|
|
(1000 ha/yr)
|
| Region |
|
Northeast |
640.3
|
0.0
|
31.1
|
0.0
|
|
North Central |
97.1
|
0.0
|
105.5
|
0.0
|
|
Southeast |
149.2
|
1,275.3
|
0.0
|
2,357.9
|
|
South Central |
0.0
|
3,306.5
|
0.0
|
1,578.6
|
| Total |
886.6
|
4,581.8
|
136.6
|
3,936.5
|
| 1 From 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.
|