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Environmental determinants of lightning- v. human-induced forest fire ignitions differ in a temperate mountain region of Switzerland

Title data

Reineking, Björn ; Weibel, Patrick ; Conedera, Marco ; Bugmann, Harald:
Environmental determinants of lightning- v. human-induced forest fire ignitions differ in a temperate mountain region of Switzerland.
In: International Journal of Wildland Fire. Vol. 19 (2010) Issue 5 . - pp. 541-557.
ISSN 1049-8001
DOI: https://doi.org/10.1071/WF08206

Abstract in another language

Understanding the environmental and human determinants of forest fire ignitions is crucial for landscapemanagement. In this study, we consider lightning- and human-induced fires separately and evaluate the relativeimportance of weather, forest composition and human activities on the occurrence of forest fire ignitions in the mostfire-prone region of Switzerland, the Canton Ticino. Independent variables included 14 drought and fire weather indices,forest composition and human influences. Logistic regression models were used to relate these independent variables torecords of forest fires over a 37-year period (1969–2005). We found large differences in the importance of environmentaland human controls on forest fire ignitions between lightning- and human-induced events: lightning-induced firesoccurred in a small range of weather conditions well captured by the Duff Moisture Code from the Canadian ForestFire Weather Index System and the LandClim Drought Index, and with negligible influence of distance to humaninfrastructure, whereas human-induced fires occurred in a wider range of weather conditions well captured by theAngstroem and the Fosberg Fire Weather Index, mainly in deciduous forests, and strongly depending on proximity tohuman infrastructure. We conclude that the suitability of fire indices can vary dramatically between ignition sources,suggesting that some of these indices are useful within certain regions and fire types only. The ignition source is animportant factor that needs to be taken into account by fire managers and when developing models of forest fireoccurrence.

Further data

Item Type: Article in a journal
Refereed: No
Additional notes: BAYCEER87383
Institutions of the University: Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Junior Professorship Biogeographical Modelling
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 500 Science
Date Deposited: 29 Apr 2015 15:42
Last Modified: 29 Apr 2015 15:42
URI: https://eref.uni-bayreuth.de/id/eprint/11725