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Wildland fire limits subsequent fire occurrence

Author(s): Sean A. Parks, Carol Miller, Lisa M. Holsinger, Scott L. Baggett, Benjamin J. Bird
Year Published: 2016

Several aspects of wildland fire are moderated by site- and landscape-level vegetation changes caused by previous fire, thereby creating a dynamic where one fire exerts a regulatory control on subsequent fire. For example, wildland fire has been shown to regulate the size and severity of subsequent fire. However, wildland fire has the potential to influence other properties of subsequent fire. One of those properties - the extent to which a previous wildland fire inhibits new fires from igniting and spreading within its perimeter - is the focus of our study. In four large wilderness study areas in the western United States (US), we evaluated whether or not wildland fire regulated the ignition and spread (hereafter occurrence) of subsequent fire. Results clearly indicate that wildland fire indeed regulates subsequent occurrence of fires ³20 ha in all study areas. We also evaluated the longevity of the regulating effect and found that wildland fire limits subsequent fire occurrence for nine years in the warm/dry study area in the south-western US and over 20 years in the cooler/wetter study areas in the northern Rocky Mountains. Our findings expand upon our understanding of the regulating capacity of wildland fire and the importance of wildland fire in creating and maintaining resilience to future fire events. © IAWF 2016

Citation: Parks, S. A., C. Miller, L. M. Holsinger, L. S. Baggett, and B. J. Bird. 2016. Wildland fire limits subsequent fire occurrence. International Journal of Wildland Fire, v. 25, no. 2, p. 182-190. 10.1071/WF15107.
Topic(s): Fire Behavior, Fire Ecology, Fire History, Fuel Treatments & Effects, Fuels
Ecosystem(s): None
Document Type: Book or Chapter or Journal Article
NRFSN number: 15303
TTRS (Tall Timbers Research Station) Number: 32770
Record updated: May 24, 2018