Human impacts on fire occurrence: a case study of hundred years of forest fires in a dry alpine valley in Switzerland

Zumbrunnen, Thomas, Menendez, Patricia, Bugmann, Harald, Conedera, Marco, Gimmi, Urs and Burgi, Matthias (2012) Human impacts on fire occurrence: a case study of hundred years of forest fires in a dry alpine valley in Switzerland. Regional Environmental Change, 12 4: 935-949. doi:10.1007/s10113-012-0307-4


Author Zumbrunnen, Thomas
Menendez, Patricia
Bugmann, Harald
Conedera, Marco
Gimmi, Urs
Burgi, Matthias
Title Human impacts on fire occurrence: a case study of hundred years of forest fires in a dry alpine valley in Switzerland
Journal name Regional Environmental Change   Check publisher's open access policy
ISSN 1436-3798
1436-378X
Publication date 2012-12-01
Sub-type Article (original research)
DOI 10.1007/s10113-012-0307-4
Open Access Status Not yet assessed
Volume 12
Issue 4
Start page 935
End page 949
Total pages 5
Place of publication Heidelberg, Germany
Publisher Springer
Language eng
Abstract Forest fire regimes are sensitive to alterations of climate, fuel load, and ignition sources. We investigated the impact of human activities and climate on fire occurrence in a dry continental valley of the Swiss Alps (Valais) by relating fire occurrence to population and road density, biomass removal by livestock grazing and wood harvest, temperature and precipitation in two distinct periods (1904–1955 and 1956–2006) using generalized additive modeling. This study provides evidence for the role played by humans and temperature in shaping fire occurrence. The existence of ignition sources promotes fire occurrence to a certain extent only; for example, high road density tends to be related to fewer fires. Changes in forest uses within the study region seem to be particularly important. Fire occurrence appears to have been negatively associated with livestock pasturing in the forest and wood harvesting, in particular during the period 1904–1955. This study illustrates consistently how fire occurrence has been influenced by land use and socioeconomic conditions. It also suggests that there is no straightforward linear relationship between human factors and fire occurrence.
Keyword Fire regime
Anthropogenic fires
Climate
Valais
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mathematics and Physics
Non HERDC
 
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Created: Fri, 18 Jan 2013, 19:19:13 EST by Patricia Menendez Galvan on behalf of Mathematics