The Heinz Center's State of the Nation's Ecosystems |
| ecosystem: |
Forests |
| indicator Name: |
Forest Types |
| page # in printed report: |
118 |
| location on page: |
all |
| data source: |
Data Source: USDA Forest Service. Coverage: All 50 States |
| notes: |
please see technical notes for further details on accessing these data
from their original source; this data table comes from a specific graphic
in The State of the Nation's Ecosystems report (www.heinzctr.org/ecosystems) |
units: million acres |
| EAST |
Type |
|
|
|
|
|
| |
|
1963 |
1977 |
1987 |
1997 |
2002 |
| Decreasing |
Lowland Hardwoods |
60 |
55 |
44 |
43 |
45 |
| |
Aspen–Birch |
23 |
20 |
19 |
18 |
18 |
| |
Longleaf–Slash Pine |
25 |
17 |
16 |
13 |
14 |
| |
Nonstocked |
11 |
10 |
7 |
3 |
1 |
| No Change* |
Loblolly–Shortleaf Pine |
56 |
50 |
49 |
53 |
54 |
| |
Other Types |
37 |
48 |
38 |
40 |
35 |
| |
Northern Conifers |
33 |
34 |
33 |
29 |
29 |
| Increasing |
Oak–Hickory |
113 |
111 |
122 |
130 |
133 |
| |
Maple–Beech–Birch |
33 |
39 |
47 |
55 |
55 |
| * shown here for completeness, however the "no change" types do not show
up in the graphics |
| WEST |
Type |
|
|
|
|
|
| |
|
1963 |
1977 |
1987 |
1997 |
2002 |
| Decreasing |
Ponderosa pine |
41 |
34 |
32 |
33 |
31 |
| |
Hemlock–Sitka Spruce |
30 |
25 |
19 |
21 |
19 |
| |
Lodgepole Pine |
24 |
22 |
19 |
18 |
19 |
| No Change* |
Other Softwoods |
74 |
69 |
73 |
78 |
75 |
| |
Juniper |
49 |
47 |
48 |
49 |
52 |
| |
Western Hardwoods |
52 |
58 |
57 |
48 |
50 |
| |
Douglas Fir |
43 |
39 |
43 |
42 |
40 |
| |
Nonstocked |
7 |
7 |
5 |
4 |
6 |
| Increasing |
Fir–spruce |
52 |
55 |
61 |
70 |
73 |
| * shown here for completeness, however the "no change" types do not show
up in the graphics |
|