Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/55826
Title: Using vegetation to characterize the avalanche to Canal del Roc Roig, Vall de Núria (Eastern Pyrenees, Spain)
Author: Molina, Ricard
Muntán, Elena
Furdada i Bellavista, Glòria
Oller i Figueras, Pere
Gutiérrez Merino, Emilia
Martínez, Pere
Vilaplana, Joan Manuel
Keywords: Allaus
Vegetació
Pirineu català (Catalunya)
Avalanches
Vegetation
Catalonian pyrenees (Catalonia)
Issue Date: 2004
Publisher: International Glaciological Society.
Abstract: Avalanche hazard maps of high accuracy are difficult to produce. For land-use planning and management purposes, a good knowledge of extreme run-out zones and frequencies of avalanches is required. In the present work, vegetation recognition (especially focused on Pinus uncinata trees) and dendrochronological techniques are used to characterize avalanches that have occurred in historical times, helping to determine both the extent of large or extreme avalanches and their occurrence in time. Vegetation was studied at the Canal del Roc Roig (eastern Pyrenees, Spain) avalanche path. The avalanches descending this path affect the railway that reaches the Vall de Núria resort and the run-up to the opposite slope. During winter 1996, two important avalanches affecting this path were well documented. These are compared with the results of the vegetation study, consisting of an inventory of flora, the recording of vegetation damages along eight transverse profiles at different altitudes on the path and a dendrochronological sampling campaign. The data obtained contributed to a characterization of the predominant snow accumulation in the starting zone, the 1996 avalanches and the range of frequencies of large avalanches. Also, traces of avalanches that increase the path mapped in the avalanche paths map published by the Institut Cartogràfic de Catalunya in 2000 were identified, improving the initial existing information.
Note: Reproducció del document publicat a: http://dx.doi.org/10.3189/172756404781814807
It is part of: Annals of Glaciology, 2004, vol. 38, num. 1, p. 159-165
Related resource: http://dx.doi.org/10.3189/172756404781814807
URI: http://hdl.handle.net/2445/55826
ISSN: 0260-3055
Appears in Collections:Articles publicats en revistes (Dinàmica de la Terra i l'Oceà)
Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals)

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