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Table 1 Mean cover plus/minus standard deviation of plant functional groups that comprised the four dominant land-cover types prevailing before the 2015 Soda wildfire, and the alignment of each cover type to the most relevant fire-behavior fuel models from Scott and Burgan’s 40 (2005). The land-cover classes were established using unsupervised maximum likelihood classification (ArcMap) of vegetation cover maps (USDA Rangeland Analysis Platform). See Table 2 for accuracy of different blends of the candidate fuel models

From: Modeling of fire spread in sagebrush steppe using FARSITE: an approach to improving input data and simulation accuracy

Land-cover type

Shrub cover (%)

Perennial Grass cover (%)

Annual Herbaceous cover (%)

Bare Soil cover (%)

Candidate fuel models

Grass - shrubland

31 ± 10.6

38 ± 7.8

18 ± 8.5

14 ± 6.7

GS2, GS3, SH1, SH2, SH5, SH7

Perennial grassland

15 ± 3.5

57 ± 7.5

19 ± 7.6

9 ± 3.1

GR1, GR2, GS2

Mixed perennial/annual grassland

14 ± 5.6

36 ± 6.6

39 ± 9.3

11 ± 3.8

GR1, GR2, GR3

Exotic annual grassland

8 ± 3.4

24 ± 5.6

63 ± 9.6

6 ± 2.8

GR4