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Table 2 Comparison of the Wieslander VTM and CALVEG for Forest Service and National Park Service lands within the VTM study area delineated in Figures 2A and 3A.

From: Corroborating Evidence of a Pre-Euro-American Low- to Moderate-Severity Fire Regime in Yellow Pine-Mixed Conifer Forests of the Sierra Nevada, California, USA

California wildlife habitat relationship (CWHR) type

Wieslander vegetation type map (VTM)a

VTM for Leiberg’s study areaa

VTM outside Leiberg’s study areaa

CALVEGa

CALVEG for Leiberg’s study areaa

CALVEG outside Leiberg’s study areaa

ha

%

ha

%

ha

%

ha

%

ha

%

ha

%

Annual grassland

11 888

0.6

5 808

0.7

6 080

0.6

20 976

1.1

8 464

1.0

12 512

1.2

Aspen

2 352

0.1

320

0.0

2 032

0.2

640

0.0

0

0.0

640

0.1

Bitterbrush

2 176

0.1

1 040

0.1

1 136

0.1

864

0.0

864

0.1

0

0.0

Blue oak-foothill pine

8 992

0.5

1 296

0.1

7 696

0.7

1 984

0.1

448

0.1

1 536

0.2

Blue oak woodland

640

0.0

96

0.0

544

0.1

576

0.0

0

0.0

576

0.1

Chamise-redshank chaparral

12 608

0.6

0

0.0

12 608

1.2

1 488

0.1

0

0.0

1 488

0.1

Closed-cone pine-cypress

1 088

0.1

144

0.0

944

0.1

2 272

0.1

576

0.1

1 696

0.2

Douglas-fir

35 264

1.8

28 224

3.2

7 040

0.7

74 720

4.0

74 112

8.6

608

0.1

Eastside pine

33 664

1.7

16 464

1.8

17 200

1.6

70 688

3.8

70 096

8.1

592

0.1

Jeffrey pine

268 928

13.8

153 392

17.2

115 536

11.0

48 160

2.6

5 376

0.6

42 784

4.2

Juniper

6 720

0.3

464

0.1

6 256

0.6

10 960

0.6

128

0.0

10 832

1.1

Lodgepole pine

123 120

6.3

10 720

1.2

112 400

10.7

38 288

2.0

5 264

0.6

33 024

3.3

Low sage

3 184

0.2

2 416

0.3

768

0.1

160

0.0

112

0.0

48

0.0

Mixed chaparral

25 040

1.3

4 944

0.6

20 096

1.9

27 328

1.5

1 808

0.2

25 520

2.5

Montane chaparral

159 456

8.2

106 688

12.0

52 768

5.0

121 504b

6.5

62 800b

7.2

58 704

5.8

Montane hardwood-conifer

736

0.0

144

0.0

592

0.1

47 392

2.5

28 368

3.3

19 024

1.9

Montane hardwood

86 192

4.4

48 304

5.4

37 888

3.6

126 416

6.7

41 488

4.8

84 928

8.4

Montane riparian

1 376

0.1

352

0.0

1 024

0.1

3 888

0.2

1 312

0.2

2 576

0.3

Perennial grassland

0

0.0

0

0.0

0

0.0

19 888

1.1

1 264

0.1

18 624

0.0

Ponderosa pine

245 088

12.6

58 752

6.6

186 336

17.7

81 568

4.3

15 872

1.8

65 696

6.5

Red fir

218 352

11.2

114 480

12.8

103 872

9.9

223 712

11.9

76 032

8.8

147 680

14.6

Sagebrush

27 456

1.4

18 896

2.1

8 560

0.8

25 328

1.3

24 544

2.8

784

0.1

Sierran mixed conifer

412 336

21.2

235 552

26.4

176 784

16.8

736 832

39.2

355 264

41.0

381 568

37.7

Subalpine conifer

111696

5.7

18 784

2.1

92 912

8.8

80 048

4.3

1 680

0.2

78 368

7.7

Wet meadow

23 520

1.2

6 240

0.7

17 280

1.6

6 432

0.3

1 200

0.1

5 232

0.5

White fir

122 016

6.3

57 744

6.5

64 272

6.1

105 808

5.6

89 328

10.3

16 480

1.6

  1. a Although there are polygons <1 ha, the minimum mapping unit was typically about 16 ha (Wieslander et al. 1933, Thorne et al. 2006). Polygons were resampled to 400 m × 400 m pixels for comparing CALVEG to the VTM.
  2. b Includes areas on the Plumas NF that burned at high severity but mapped in 2000 as barren in the 1999 Bean Creek, 1999 Bucks, 1999 Devils Gap, 1999 Horton2, 1999 Pidgen, 1999 Stag, and 2000 Storrie fires.