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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.
Bd. 19
(2010)
Heft 5
.
- S. 541-557.
ISSN 1049-8001
DOI: https://doi.org/10.1071/WF08206
Abstract
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.
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| Publikationsform: | Artikel in einer Zeitschrift |
|---|---|
| Begutachteter Beitrag: | Nein |
| Zusätzliche Informationen: | BAYCEER87383 |
| Institutionen der Universität: | Forschungseinrichtungen > Forschungszentren > Bayreuther Zentrum für Ökologie und Umweltforschung - BayCEER Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften > Juniorprofessur Biogeographische Modellierung Fakultäten Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften Forschungseinrichtungen Forschungseinrichtungen > Forschungszentren |
| Titel an der UBT entstanden: | Ja |
| Themengebiete aus DDC: | 500 Naturwissenschaften und Mathematik |
| Eingestellt am: | 29 Apr 2015 15:42 |
| Letzte Änderung: | 29 Apr 2015 15:42 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/11725 |