Table 1. Areas of vegetative cover types in the Boreal Hardwood Transition, physiographic area 20. 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 taken from the CCRS landcover database.
Cover types

Area (ha)

Area (ac)

Percent of Total
United States
White-red-jack pine forests

3,241,420

8,009,550

7.80
Spruce-fir forest

1,454,169

3,593,251

3.50
Oak-hickory forest

1,646,122

4,067,567

3.96
Maple, mixed hardwood forest

4,751,385

11,740,672

11.44
Aspen-birch forest

8,011,006

19,795,196

19.29
Wheat, small grain crops

280,570

693,288

0.68
Corn, soybeans

2,865,769

7,081,316

6.90
Irrigated agriculture

61,863

152,862

0.15
Bluestem, grama grassland

33,915

83,804

0.08
Pasture, hay, mixed crops

3,156,086

7,798,688

7.60
Sagebrush, greasewood

1,492

3,686

0.00
Water

870,552

2,151,134

2.10
Urban

137,351

33,939

0.33
No data

696

1,720

0.00
Canada
High density evergreen forest

2,284,241

5,644,360

5.50
Medium density evergreen forest

439,006

1,084,783

1.06
Low density evergreen forest

539,060

1,332,017

1.30
Mixed deciduous forest

3,118,988

7,707,020

7.51
Mixed evergreen forest

1,918,237

4,739,965

4.62
Mixed intermediate uniform forest

2,017,993

4,986,462

4.86
Mixed intermediate heterogeneous forest

2,927,831

7,234,670

7.05
Transition treed shrubland

95,678

236,421

0.23
Wetland-shrubland

85,633

211,599

0.21
Barren ground, sparse vegetation

8,454

20,890

0.02
Cropland

52,613

130,007

0.13
Mosaic land, woodland-cropland

187,279

462,765

0.45
Mosaic land, cropland

15,018

37,110

0.04
Urban

38,391

94,863

0.09
No data

1,288,174

3,183,078

3.10
 Totals

41,528,992

102,618,139

100