Natural Hazards and Earth System Sciences
Natural Hazards and Earth System Sciences
NHESS
Articles | Volume 26, issue 10
Articles | Volume 26, issue 10
https://doi.org/10.5194/nhess-26-4843-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/nhess-26-4843-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 26, issue 10
Research article
 | 
06 Oct 2026
Research article |  | 06 Oct 2026

Simulation of sliding deadwood logs in mountain forests: towards a quantitative hazard assessment

Joël Borner, Peter Bebi, Leon J. Bührle, Adrian Ringenbach, and Remco I. Leine

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Short summary
Deadwood supports biodiversity and contributes to the protective function of mountain forests, but under certain conditions it can itself become a hazard when sliding downslope. This study examines when and why sliding deadwood occurs and how far it can travel. Using a physics-based simulation model and forest data, we show that sliding is favoured by steep slopes, wet surfaces, and specific decay stages, helping identify where hazards can be reduced while preserving protective forest functions.
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