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Table 1. Areas of vegetative cover types in the Columbia Plateau, physiographic area 89. U.S. forest coverages are taken from USFS FIA data, nonforest cover types are modified from USGS data. Habitat coverages with superscript * are combined from both databases by adding USGS coverage in the "nonforest" section of the USFS database. Canadian cover types are taken from CCRS database. |
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Cover types |
Area (ha) |
Area (ac) |
Percent of Total |
|
United States |
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|
Douglas fir, spruce forest |
607,100 |
1,500,144 |
1.86 |
|
Ponderosa pine forest * |
4,708,700 |
11,635,197 |
14.41 |
|
Fir-spruce forest * |
1,082,000 |
2,673,622 |
3.31 |
|
Lodgepole pine forest * |
699,800 |
1,729,206 |
2.14 |
|
Chaparral forest |
3,500 |
8,648 |
0.01 |
|
Western juniper forest * |
1,460,300 |
3,608,401 |
4.47 |
|
Mixed hardwood forest * |
252,300 |
623,433 |
0.77 |
|
Riparian woods |
131,300 |
324,442 |
0.40 |
|
Aspen-birch forest * |
20,500 |
50,656 |
0.06 |
|
Western white pine forest |
2,900 |
7,166 |
0.01 |
|
Western hemlock forest |
9,100 |
22,486 |
0.03 |
|
Larch forest |
36,500 |
90,192 |
0.11 |
|
Wheat, irrigated agriculture, corn, soybeans |
3,335,400 |
8,241,773 |
10.20 |
|
Bluestem grassland |
202,400 |
500,130 |
0.62 |
|
Grama grassland |
971,100 |
2,399,588 |
2.97 |
|
Wheatgrass grassland |
2,438,700 |
6,026,028 |
7.46 |
|
Pasture, hay, mixed crops |
217,200 |
536,701 |
0.66 |
|
Open oak, bluestem woodland |
82,200 |
203,116 |
0.25 |
|
Sagebrush prairie |
8,456,400 |
20,895,764 |
25.87 |
|
Greasewood brushland |
6,725,600 |
16,618,958 |
20.57 |
|
Alpine tundra |
38,200 |
94,392 |
0.12 |
|
Water * |
425,600 |
1,051,658 |
1.30 |
|
Barren ground, sparse vegetation |
547,900 |
1,353,861 |
1.68 |
|
Urban |
69,700 |
172,229 |
0.21 |
|
No data |
11,400 |
28,169 |
0.04 |
|
Canada |
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|
High density evergreen forest |
39,100 |
96,616 |
0.12 |
|
Medium density evergreen forest |
21,300 |
52,632 |
0.06 |
|
Low density evergreen forest |
29,800 |
73,636 |
0.09 |
|
Mixed pine-hardwood forest |
9,500 |
23,474 |
0.03 |
|
Transition treed shrubland |
8,400 |
20,756 |
0.03 |
|
Wetland-shrubland |
5,900 |
14,579 |
0.02 |
|
Grassland |
2,600 |
6,425 |
0.01 |
|
Barren land |
5,400 |
13,343 |
0.02 |
|
Cropland |
3,800 |
9,390 |
0.01 |
|
Mosaic, woodland-cropland |
27,000 |
66,717 |
0.08 |
|
Totals |
32,688,600 |
80,773,531 |
100 |