Skip to Main content Skip to Navigation

Érosion des sentiers en moyenne montagne auvergnate

Abstract : In this thesis, weathering of hiking trails has been studied in the low mountain ranges of the Massif Central (Auvergne, France) through the morphological comparison of four sectors in the Massif du Sancy and the Chaîne des Puys, each one presenting different erosion stages and rhythms of evolution. Our methodological approach is based on the crossing of three unpublished field datasets: topographic data, climate data and cartography of hiker behavior. High resolution topographic data mobilized three complementary data collection methods (terrestrial laser scanning, GPS monitoring and manual monitoring). Cross-analysis of all these data allowed us to: (1) quantify erosion and depositional volumes; (2) map the weathering sensitivity of studied areas; (3) identify the seasonality of weathering processes; (4) propose an operational evaluation tool for the management of hiking trails in low mountain ranges. Weathering quantification results show a clear differentiation of the studied areas. This contrasting erosion gradient has been proved to be linked to: local bioclimatic parameters which command the seasonality of weathering processes, irregular touristic attendance and substratum durability. In response to this erosion, varied management were introduced (guideline, wattle fence, low wall, water bars ...) and globally effective. Nevertheless, it appears that a refinement of the positioning adjustments, based on an understanding of weathering processes over a longer period would optimize the protective role of these structures.
Document type :
Complete list of metadatas

Cited literature [107 references]  Display  Hide  Download
Contributor : Abes Star :  Contact
Submitted on : Wednesday, February 13, 2019 - 3:18:06 PM
Last modification on : Wednesday, March 4, 2020 - 12:22:20 PM
Long-term archiving on: : Tuesday, May 14, 2019 - 7:17:44 PM


Version validated by the jury (STAR)


  • HAL Id : tel-02018027, version 1


Audrey Martinat. Érosion des sentiers en moyenne montagne auvergnate. Géographie. Université Blaise Pascal - Clermont-Ferrand II, 2015. Français. ⟨NNT : 2015CLF20025⟩. ⟨tel-02018027⟩



Record views


Files downloads