| Table 1. Areas of vegetative cover types in the Northern Mixed Grass Prairie, physiographic area 37. U.S. forest coverages are taken from USFS FIA data, nonforest cover types are modified from USGS data. Water coverage is combined from both databases by adding USGS water in the "nonforest" section of the USFS database. Canadian coverages are from the CCRS database. | |||
| Cover types | Area (ha) |
Area (ac) |
Percent of Total |
| United States | |||
| Lodgepole pine, spruce-fir forests | 3,482 |
8,605 |
0.01 |
| Mixed hardwood forest | 65,765 |
162,506 |
0.22 |
| Aspen-birch forest | 32,932 |
81,376 |
0.11 |
| Ponderosa pine forest | 7,760 |
19,176 |
0.03 |
| Wheat, corn, soybeans, irrigated agriculture | 14,863,728 |
36,728,272 |
49.10 |
| Bluestem grassland | 2,991 470 |
7,391,923 |
9.88 |
| Grama grassland | 25,570 |
63,183 |
0.08 |
| Wheatgrass grassland | 1,348,236 |
3,331,491 |
4.45 |
| Pasture, hay, mixed crops | 86,161 |
212,905 |
0.29 |
| Greasewood, sagebrush, creosote brushland | 9,551 |
23,601 |
0.03 |
| Water | 172,821 |
427,041 |
0.57 |
| Canada | |||
| Evergreen forest | 3,582 |
8,851 |
0.01 |
| Deciduous forest | 22,088 |
54,578 |
0.07 |
| Mixed evergreen-deciduous forest | 14,626 |
36,140 |
0.05 |
| Shrubland, woodland-wetland | 7,760 |
19,176 |
0.03 |
| Grassland | 1,243,370 |
3,072,367 |
4.11 |
| Barren ground, sparse vegetation | 3,084 |
7,621 |
0.01 |
| Cropland | 7,991,017 |
19,745,804 |
26.40 |
| Mosaic land, cropland-woodland | 64,173 |
158,572 |
0.21 |
| Mosaic land, woodland-cropland | 1,092,339 |
2,699,169 |
3.61 |
| Urban | 15,620 |
38,597 |
0.05 |
| No data | 205,354 |
507,430 |
0.68 |
| Totals | 30,270,491 |
74,798,383 |
100 |