Résumé
High-alpine geomorphosites are poorly understood and developed, mostly because of the heavy constraints of high mountain areas. Meanwhile, they are geoheritage areas that are often extremely vulnerable to global warming: glaciers and permafrost areas are currently affected by major changes due to increasing air temperature. To deal with the high spatial variability of landforms and processes, research on alpine geomorphosites often needs the use of advanced methods of high-resolution topography, among which terrestrial laser scanning plays an increasingly crucial role. Carried out on some tenth of high-elevation sites across the Alps since the beginning of the 2000s, this method is particularly interesting for the recognition and development of high-alpine geomorphosites. Indeed, it can be implemented for identifying and characterizing the geomorphic objects (survey, monitoring and mapping), helping planning and protection policies and serving geotouristic development (communication about the processes involved, basis for documents).
Auteurs, date et publication :
Auteurs L. Ravanel , X. Bodin , P. Deline
Publication : Geoheritage
Date : 2025
Volume : 6
Issue : 2
Pages : 129-140
Catégorie(s)
#CNRS #Lautaret #UGAAuteurs, date et publication :
Auteurs Marie-Lise Benot , Patrick Saccone , Emmanuelle Pautrat , Rachel Vicente , Marie-Pascale Colace , Karl Grigulis , Jean-Christophe Clément , Sandra Lavorel
Publication : Ecosystems
Date : 2025
Volume : 17
Issue : 3
Pages : 458-472
Catégorie(s)
#CNRS #Lautaret #UGAAuteurs, date et publication :
Auteurs François Feer , Olivier Boissier
Publication : Ecological indicators
Date : 2025
Volume : 57
Pages : 164-170
Catégorie(s)
#CNRS #FORET NouraguesAuteurs, date et publication :
Auteurs Christophe Faynel , Robert K Robbins
Publication : Annales de la Société entomologique de France
Date : 2025
Volume : 51
Pages : 196-196
Catégorie(s)
#CNRS #FORET NouraguesAuteurs, date et publication :
Auteurs Maxime Réjou-Méchain , Blaise Tymen , Lilian Blanc , Sophie Fauset , Ted R Feldpausch , Abel Monteagudo , Oliver L Phillips , Hélène Richard , Jérôme Chave
Publication : Remote Sensing of Environment
Date : 2025
Volume : 169
Pages : 93-101
Catégorie(s)
#ANR-Citation #CNRS #FORET NouraguesAuteurs, date et publication :
Auteurs Tony Robillard , Hannah M ter Hofstede , Jérôme Orivel , Natállia M Vicente
Publication : Bioacoustics
Date : 2025
Volume : 24
Issue : 2
Pages : 123-143
Catégorie(s)
#CNRS #FORET NouraguesAuteurs, date et publication :
Auteurs Jan Šobotník , Thomas Bourguignon , Tiago F Carrijo , Christian Bordereau , Alain Robert , Barbora Křížková , Joice P Constantini , Eliana M Cancello
Publication : Arthropod structure & development
Date : 2025
Volume : 44
Issue : 5
Pages : 401-406
Catégorie(s)
#CNRS #FORET NouraguesAuteurs, date et publication :
Auteurs Jae-Cheon Sohn , Donald R Davis , Carlos Lopez-Vaamonde
Publication : ZooKeys
Date : 2025
Issue : 494
Pages : 69
Catégorie(s)
#⛔ No DOI found #CNRS #FORET NouraguesRésumé
Mountain regions are key for humanity's water supply, and their water yield depends on climatic, soil and vegetation effects. Here we explore the effects of vegetation composition and structure on the water balance of high elevation grasslands with different climatic conditions across the Alps. Using a total of 220 deep seepage collectors with intact soil-vegetation monoliths in different types of mountain grasslands in the Austrian, French and Swiss Alps, we solved the water balance equation for evapotranspiration (ET) and related the results to biomass, the abundance of certain plant functional types and structural and functional vegetation properties. While daily mean ET during the growing season was similar at all sites, ET to precipitation ratios were significantly higher and ET to potential ET ratios significantly lower at the drier French sites than at the more humid Swiss and Austrian site. Large variability of ET, seepage and soil moisture within all sites pointed at a high influence of vegetation on the water balance. While ET increased significantly with biomass at all sites, the influence of other vegetation properties was site specific. At the more humid, subalpine Austrian site the effects of vegetation on ET were stronger and more diverse than at the higher elevation Swiss site and the drier French sites, where climatic drivers dominated ET. The potential to influence ET and water yield of mountain areas by manipulating the plant canopy with systematic land management is therefore higher in regions with good growing conditions than in areas with harsh climate. Copyright © 2014 John Wiley & Sons, Ltd.
Auteurs, date et publication :
Auteurs N. Obojes , M. Bahn , E. Tasser , J. Walde , N. Inauen , E. Hiltbrunner , P. Saccone , J. Lochet , J. C. Clément , S. Lavorel , U. Tappeiner , Ch Körner
Publication : Ecohydrology
Date : 2025
Volume : 8
Issue : 4
Pages : 552-569
Catégorie(s)
#CNRS #Lautaret #UGARésumé
Recent observations and geodetic measurements in the European Alps show that changes are occurring on rock glacier dynamics, ranging from moderate velocity variations to strong acceleration or even total collapse. These changes can be related to the ground temperature and to climate warming. In most cases, rock glaciers do not represent any serious hazard, except the instability of their surface and local rockfalls at the steep front. The surface movements, though moderate, can nevertheless cause damages to sensible infrastructures like cableways or buildings, if these are not designed to adapt to surface movements. The strong accelerations observed on some rock glaciers, however, induce a change of magnitude, and may threaten in some cases downslope areas. Thus, the presence of active or inactive rock glaciers with high ice content must be considered not only with regard to present conditions and dynamics, but with respect to possible evolutions due to climate change.
Auteurs, date et publication :
Auteurs Giorgio Lollino , Andrea Manconi , John Clague , Wei Shan , Marta Chiarle , P. Schoeneich , X. Bodin , T. Echelard , V. Kaufmann , A. Kellerer-Pirklbauer , J. -M. Krysiecki , G. K. Lieb
Date : 2025
Volume : 1
Pages : 223-227