Table 2 Quantitative metrics from FFE-FVS describing simulated changes in forest structure, fire behavior, and fire effects from thinning the same sites in Table 1. FFE metrics include crown base height (CBH), flame length (FL), fire type (FT), where S = surface, P = passive crown fire, and C = conditional crown fire, torching and crowning indices (TI and CI), pTorch (pT) and % mortality (MORT.), respectively. Abbreviations describing forest types: MC mixed conifer, PP/DF ponderosa pine/Douglas-fir, and LP lodgepole pine
From: Modeling thinning effects on fire behavior with STANDFIRE
Site (forest) | Case | CBH | FL | FT | TI | CI | pT | MORT. |
|---|---|---|---|---|---|---|---|---|
m | m | Cat. | km/h−1 | km/h−1 | prob. | %BA | ||
SW (MC) | Untreated | 3.4 | 0.9 | S | 124.2 | 48.0 | 0.11 | 43 |
SW (MC) | Thin | 1.5 | 1.4 | P | 30.7 | 77.9 | 0.13 | 44 |
LB (PP/DF) | Untreated | 2.7 | 1.0 | S | 76.4 | 41.8 | 0.39 | 32 |
LB (PP/DF) | Thin | 4.0 | 1.5 | S | 56.2 | 91.8 | 0.54 | 39 |
TF (LP) | Untreated | 4.0 | 0.9 | C | 160.9 | 31.9 | 0.18 | 100 |
TF (LP) | Thin | 8.8 | 1.6 | S | 146.8 | 106.2 | 0.12 | 58 |