Table 1. Areas of vegetative cover types in the Allegheny Plateau, physiographic area 24. 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 forest

217,600

537,690

1.77

Spruce-fir forest

600

1,483

0.01

Oak-pine forest

328,000

810,488

2.68

Oak-hickory forest

3,332,200

8,233,866

27.18

Maple-beech-birch forest

4,353,000

10,756,263

35.50

Wheat, small grain crops

5,300

13,096

0.04

Corn, soybeans, irrigated agriculture

2,651,000

6,550,621

21.62

Bluestem, grama, wheatgrass grassland

14,800

36,571

0.12

Pasture, hay, mixed crops

937,800

2,317,304

7.65

Greasewood brushland

1,100

2,718

0.01

Water

57,900

143,071

0.47

Urban

361,800

894,008

2.95

 Totals

12,261,100

30,297,178

100