Articles | Volume 17, issue 2
Nat. Hazards Earth Syst. Sci., 17, 291–304, 2017
https://doi.org/10.5194/nhess-17-291-2017
Nat. Hazards Earth Syst. Sci., 17, 291–304, 2017
https://doi.org/10.5194/nhess-17-291-2017
Research article
28 Feb 2017
Research article | 28 Feb 2017

Quantifying the effect of forests on frequency and intensity of rockfalls

Christine Moos et al.

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Cited articles

Abbruzzese, J. M., Sauthier, C., and Labiouse, V.: Considerations on Swiss methodologies for rock fall hazard mapping based on trajectory modelling, Nat. Hazards Earth Syst. Sci., 9, 1095–1109, https://doi.org/10.5194/nhess-9-1095-2009, 2009.
Agliardi, F. and Crosta, G. B.: High resolution three-dimensional numerical modelling of rockfalls, Int. J. Rock Mech. Min., 40, 455–471, https://doi.org/10.1016/S1365-1609(03)00021-2, 2003.
Agliardi, F., Crosta, G. B., and Frattini, P.: Integrating rockfall risk assessment and countermeasure design by 3D modelling techniques, Nat. Hazards Earth Syst. Sci., 9, 1059–1073, https://doi.org/10.5194/nhess-9-1059-2009, 2009.
Alila, Y., Kuraś, P. K., Schnorbus, M., and Hudson, R.: Forests and floods: A new paradigm sheds light on age-old controversies, Water Resour. Res., 45, W08416, https://doi.org/10.1029/2008WR007207, 2009.
Berger, F. and Dorren, L. K.: Principles of the tool Rockfor.net for quantifying the rockfall hazard below a protection forest, Schweizerische Zeitschrift fur Forstwesen, 158, 157–165, https://doi.org/10.3188/szf.2007.0157, 2007.
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The goal of this study was to quantify the effect of forests on the occurrence frequency and intensity of rockfalls. This was done based on 3-D rockfall simulations for different forest and non-forest scenarios on a virtual slope. The rockfall frequency and intensity below forested slopes is significantly reduced. Statistical models provide information on how specific forest and terrain parameters influence this reduction and they allow prediction and quantification of the forest effect.
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