Articles | Volume 15, issue 1
https://doi.org/10.5194/nhess-15-45-2015
https://doi.org/10.5194/nhess-15-45-2015
Research article
 | 
07 Jan 2015
Research article |  | 07 Jan 2015

Landslide susceptibility near highways is increased by 1 order of magnitude in the Andes of southern Ecuador, Loja province

A. Brenning, M. Schwinn, A. P. Ruiz-Páez, and J. Muenchow

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Cited articles

Aleotti, P.: A warning system for rainfall-induced shallow failures, Eng. Geol., 73, 247–265, 2004.
Atkinson, P. M. and Massari, R.: Autologistic modelling of susceptibility to landsliding in the Central Apennines, Italy, Geomorphology, 130, 55–64, 2011.
Beck, E., Makeschin, F., Haubrich, F., Richter, M., Bendix, J., and Valerezo, C.: The ecosystem (Reserva Biológica San Francisco), in: Gradients in a Tropical Mountain Ecosystem of Ecuador, edited by: Beck, E., Bendix, J., Kottke, I., Makeschin, F., and Mosandl, R., Springer-11642/Dig. Serial 198, Springer, Berlin, Heidelberg, 1–14, 2008.
Brenning, A.: Spatial prediction models for landslide hazards: review, comparison and evaluation, Nat. Hazards Earth Syst. Sci., 5, 853–862, https://doi.org/10.5194/nhess-5-853-2005, 2005.
Brenning, A.: Statistical geocomputing combining R and SAGA: The example of landslide susceptibility analysis with generalized additive models, SAGA – Seconds Out., Hamburger Beiträge zur Physischen Geographie und Landschaftsökologie, 19, 23–32, 2008.
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Short summary
Mountain roads in developing countries often increase landslide occurrence. In this study, landslide initiation frequency along interurban highways was investigated in the Ecuadorian Andes across different climates. Using statistical models, landslides were found to be about 20 times more likely to occur in close proximity to highways compared to areas in 200m distance from highways while accounting for other environmental factors. Road effects appear to be enhanced in some geological units.
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