Results 21 to 30 of about 59,699 (195)

Modelling and simulating change in reforesting mountain landscapes using a social-ecological framework [PDF]

open access: yes, 2010
Natural reforestation of European mountain landscapes raises major environmental and societal issues. With local stakeholders in the Pyrenees National Park area (France), we studied agricultural landscape colonisation by ash (Fraxinus excelsior) to ...
A Gibon   +64 more
core   +5 more sources

Three-dimensional shear velocity structure of the Mauléon and Arzacq Basins (Western Pyrenees)

open access: yesBSGF - Earth Sciences Bulletin, 2021
We present a 3-D shear wave velocity model of the Mauléon and Arzacq Basins from the surface down to 10 km depth, inverted from phase velocity maps at periods between 2 and 9 s.
Lehujeur Maximilien   +6 more
doaj   +1 more source

Critical rainfall conditions for the initiation of torrential flows: results from the Rebaixader catchment (Central Pyrenees) [PDF]

open access: yes, 2016
Torrential flows like debris flows or debris floods are fast movements formed by a mix of water and different amounts of unsorted solid material. They generally occur in steep torrents and pose high risk in mountainous areas.
Abanco Martínez de Arenzana, Claudia   +3 more
core   +2 more sources

Besiberris glacigenic rock glacier (Central Pyrenees, Spain) : mapping surface horizontal and vertical movement (1993-2003)

open access: yesCuadernos de Investigación Geográfica, 2013
A ten-year (1993-2003) geodetic survey was conducted at the Besiberris rock glacier, a tongue-shaped, glacigenic rock glacier, located in the eastern-central Spanish Pyrenees (42º35'48''N, 0º49'20''E).
J. Chueca Cía, A. Julián Andrés
doaj   +1 more source

Stand-level drivers of tree-species diversification in Mediterranean pine forests after abandonment of traditional practices [PDF]

open access: yes, 2015
The progressive abandonment of traditional forest management over the last few decades has led to significant densification processes in most Mediterranean pine stands.
Coll Mir, Lluís   +2 more
core   +1 more source

Convergent flow in a two-layer system and mountain building [PDF]

open access: yes, 2010
With the purpose of modelling the process of mountain building, we investigate the evolution of the ridge produced by the convergent motion of a system consisting of two layers of liquids that differ in density and viscosity to simulate the crust and the
Gratton, Julio, Perazzo, Carlos Alberto
core   +4 more sources

Spatial and temporal variability of consanguinity in the French Cerdagne

open access: yesPirineos: Revista de Ecología de Montaña, 1993
[es] En este trabajo se ha estudiado la consanguinidad de la comarca pirenaica de la Cerdaña francesa desde 1836 a 1990. El cálculo de las frecuencias de matrimonios consanguíneos y del coeficiente a muestra que la consanguinidad de esta población es ...
Marta Vigo
doaj   +1 more source

Maximum height of mountain forests abruptly decreases above an elevation breakpoint

open access: yesGIScience & Remote Sensing, 2021
Canopy height is an excellent indicator of forest productivity, biodiversity and other ecosystem functions. Yet, we know little about how elevation drives canopy height in mountain areas.
Aitor Ameztegui   +4 more
doaj   +1 more source

When the State Imposes the “Commons”: Pastoralism After the Reintroduction of the Brown Bear in the Pyrenees

open access: yesConservation & Society, 2021
After the brown bear reintroduction program was launched in the Pyrenees in 1996, the French and Spanish States fostered and funded a regrouping policy to protect the sheep flocks from the bear attacks.
Ferran Pons-Raga   +3 more
doaj   +1 more source

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