Table 1. Areas of vegetative cover types in the Basin and Range, physiographic area 80. 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.

Cover types

Area (ha)

Area (ac)

Percent of Total

Douglas fir forest

134,200

331,608

0.36

Ponderosa pine forest *

825,100

2,038,822

2.20

Lodgepole pine forest *

106,300

262,667

0.28

Mixed hardwood forest *

317,500

784,543

0.85

Fir-spruce forest

13,400

33,111

0.04

Pinyon pine-juniper forest *

5,203,300

12,857,354

13.88

Chaparral forest

106,300

262,667

0.28

Aspen-birch forest

230,500

569,566

0.61

Riparian woods

90,800

224,367

0.24

Irrigated agriculture, wheat, corn

113,400

280,211

0.30

Grama, bluestem grassland

1,481,800

3,661,528

3.95

Wheatgrass grassland

2,122,000

5,243,462

5.66

Sagebrush prairie

5,486,300

13,556,647

14.63

Greasewood brushland

13,748,800

33,973,285

36.66

Barren land, sparse vegetation

6,558,400

16,205,806

17.49

Water *

808,700

1,998,298

2.16

Urban

153,600

379,546

0.41

 Totals

37,500,400

92,663,488

100