Fire Ecology

Table 1 Results from conditional classification tree (CTREE) analysis indicating cutoffs determining the effective area in landscape fences (i.e., None fuel class) above which the probability of large fire was lowered during both nominal (< 98th percentile) and extreme (> 98th percentile) fire weather years

From: System-level feedbacks of active fire regimes in large landscapes

Forest type	Response	Area in fences (%)
Forest type	Response	Nominal weather	Extreme weather
All types	Annual area burned	27	40
All types	High-severity area burned	24	40
High elevation	Annual area burned	38	47
High elevation	High-severity area burned	38	47
Low elevation	Annual area burned	35	39
Low elevation	High-severity area burned	35^a	47

^aCTREE algorithm did not find a significant break

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