Table 1. Areas of vegetative cover types in the Upper Great Lakes Plain, physiographic area 16. 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.

Cover types 

Area (ha)

Area (ac)

Percent of Total

White-red-jack pine forests

111,100

274,528

0.58

Spruce-fir forest

7,900

19,521

0.04

Oak-hickory forest

1,411,400

3,487,569

7.37

Elm-ash-cottonwood forest

659,000

1,628,389

3.44

Maple-beech-birch forest

261,000

644,931

1.36

Aspen-birch forest

285,800

706,212

1.49

Wheat, small grain crops

339,000

837,669

1.77

Corn, soybeans

9,145,700

22,599,025

47.73

Irrigated agriculture

176,000

434,896

0.92

Bluestem grassland

98,300

242,899

0.51

Grama, wheatgrass grassland

10,600

26,193

0.05

Pasture, hay, mixed crops

4,987,600

12,324,360

26.03

Sagebrush, greasewood, creosote brushland

1,200

2,965

0.01

Water

252,200

623,186

1.32

Urban

1,405,400

3,472,743

7.34

No data

6,900

17,050

0.04

 Totals

19,159,100

47,342,136

100