Table 2 The resulting parameters from our calibration process controlling fire spread from the portion of the SCRPPLE fire model governing (a) fire spread probability and (b) the maximum daily rate of fire spread (ha) and (c) suppression probability for the three suppression ratings at three fire weather index level in our SCRPPLE fire model for the Southern Appalachians. In this study, we used the LANDIS-II model to simulate the Southern Appalachians, USA, under four CMIP5 climate scenarios representing increased drought trend, increased drought variability, their combination, and a scenario with neither increase. These simulations were compared to the historical climate and each other to understand changes in fire patterns and landscape-scale changes in species composition and biomass
From: Fire regimes of the Southern Appalachians may radically shift under climate change
Coefficient | Estimate | Std. Error | P value |
(a) Fire spread probability | |||
 Intercept | −1.740204 | 0.113415 | < 0.0001 |
 Fire weather index | 0.725350 | 0.188870 | < 0.0001 |
 Fine fuel index | 0.061306 | 0.003369 | < 0.0001 |
b) Maximum rate of daily spread (ha) | |||
 Intercept | 477.60 | 55.70 | < 0.0001 |
 Mean effective windspeed (m/s) | 393.00 | 13.28 | < 0.0001 |
(c) Fire suppression values | |||
Suppression class | FWI < 20 | 20 < FWI < 28 | FWI > 28 |
 Low (1) | 0.30 | 0.12 | 0.05 |
 Medium (2) | 0.50 | 0.25 | 0.03 |
 High (3) | 0.70 | 0.35 | 0.20 |