Reexamining Fire Suppression Impacts on Brushland Fire Regimes

Keeley JE, Fotheringham CJ, Morais M. 1999. Reexamining Fire Suppression Impacts on Brushland Fire Regimes. Science. 284(5421):1829-1832

California shrubland wildfires are increasingly destructive, and it is widely held that the problem has been intensified by fire suppression, leading to larger, more intense wildfires. However, analysis of California Statewide Fire History Database shows that, since 1910, fire frequency and area burned have not declined, and fire size has not increased. Fire rotation intervals have declined, and fire season has not changed, implying that fire intensity has not increased. Fire frequency and population density were correlated, and it is suggested that fire suppression plays a critical role in offsetting potential impacts of increased of increased ignitions. Large fires were not dependent on old age classes of fuels, and it is thus unlikely that age class manipulation of fuels can prevent large fires. Expansion of the urban-wildland interface is a key factor in wildland fire destruction.

Type
Journal Article
Authors
Keeley, Jon; Fotheringham, C.; Morais, Marco
Units
SAMO
Keywords
Fire Frequency, Fire Regime, urban-wildland interface

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