Literatura académica sobre el tema "Étages de végétation – Pyrénées"
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Artículos de revistas sobre el tema "Étages de végétation – Pyrénées"
Brugiapaglia, Elisabetta, Jacques-Louis de Beaulieu, Joël Guiot y Maurice Reille. "Transect de pluie pollinique et étagement de la végétation dans le massif du Taillefer (Isère, France)". Géographie physique et Quaternaire 52, n.º 2 (2 de octubre de 2002): 209–18. http://dx.doi.org/10.7202/004775ar.
Texto completoDahmani-Megrerouche, Malika. "Groupements à chêne vert et étages de végétation en Algérie". Ecologia mediterranea 22, n.º 3 (1996): 39–52. http://dx.doi.org/10.3406/ecmed.1996.1807.
Texto completoBussières, Bruno, Serge Payette y Louise Filion. "Déboisement et entourbement des hauts sommets de Charlevoix à l’Holocène supérieur : origine des étages alpin et subalpin". Géographie physique et Quaternaire 50, n.º 3 (30 de noviembre de 2007): 258–69. http://dx.doi.org/10.7202/033099ar.
Texto completoGarraud, Luc. "Les étages de la végétation dans le sud-est de la France". Bulletin mensuel de la Société linnéenne de Lyon 67, n.º 7 (1998): 188–90. http://dx.doi.org/10.3406/linly.1998.11233.
Texto completoDavid, Fernand. "Établissement des étages de végétation holocène : vers la modélisation complète d’un massif". Comptes Rendus de l'Académie des Sciences - Series III - Sciences de la Vie 324, n.º 3 (marzo de 2001): 273–78. http://dx.doi.org/10.1016/s0764-4469(00)01284-1.
Texto completoArgente del Castillo Ocaña, Carmen. "La utilización pecuaria de los baldíos andaluces (siglos XIII-XVI)". Anuario de Estudios Medievales 20, n.º 1 (2 de abril de 2020): 437. http://dx.doi.org/10.3989/aem.1990.v20.1158.
Texto completoTheau, Jean-Pierre y François Prud’homme. "FlorealIndices : Une feuille de calcul pour produire des indices agroécologiques de prairies permanentes à partir du relevé de végétation". Cahiers Agricultures 30 (2021): 37. http://dx.doi.org/10.1051/cagri/2021023.
Texto completoBéguin, Claude y Mélanie Progin Sonney et Michel Vonlanthen. "La végétation des sols polygonaux aux étages alpin supérieur et subnival en Valais (Alpes centro-occidentales, Suisse)". Botanica Helvetica 116, n.º 1 (junio de 2006): 41–54. http://dx.doi.org/10.1007/s00035-006-0737-z.
Texto completoAubert, Sandrine, Jean-Marc Belet, Anne Bouchette, Thierry Otto, Jean-Jacques Dedoubat, Michel Fontugne y Guy Jalut. "Dynamique tardiglaciaire et holocène de la végétation à l'étage montagnard dans les Pyrénées centrales". Comptes Rendus Biologies 327, n.º 4 (abril de 2004): 381–88. http://dx.doi.org/10.1016/j.crvi.2004.02.001.
Texto completoBlanc, Frédéric. "Étude de l'avifaune des milieux ouverts en relation avec la dynamique de végétation des paysages agropastoraux : l'exemple du site pilote Natura 2000 «Madres-Coronat» (Pyrénées-Orientales)". Sud-Ouest européen 16, n.º 1 (2003): 75–83. http://dx.doi.org/10.3406/rgpso.2003.2840.
Texto completoTesis sobre el tema "Étages de végétation – Pyrénées"
Birre, Deborah. "Dynamique spatio-temporelle de la limite supérieure de la forêt dans la partie orientale des Pyrénées françaises : le rôle de l’anthropisation et des changements climatiques". Electronic Thesis or Diss., Paris 13, 2024. https://theses.hal.science/tel-04651374.
Texto completoThe position of the upper forest limit, which delineates the transition between forested areas and alpine grasslands in mountainous regions, is theoretically determined by temperatures. However, its response to current climate warming is intricate and heterogeneous, carrying significant ecological and socio-economic implications. This thesis focuses on the Eastern Pyrenees to unravel the interactions between various potential factors and the dynamics of the upper forest limit. The central hypothesis suggests that the hierarchy of influencing factors, whether climatic or anthropogenic, varies depending on the scale of analysis. To test this hypothesis, a methodology combining geomatics for diachronic mapping at the scale of the entire study area, regional statistical analyses of potential factors, and local field surveys has been employed. Four major results have emerged from these analyses : (i) the lowering of the forest limit altitude compared to its theoretical altitude; (ii) the complementary nature of dynamic indicators beyond mere altitude changes; (iii) the multidimensionality of the dynamic depending on the indicator and scale considered; and (iv) the multiscale nature of the dynamic, where local contexts variably influence outcomes. These findings confirm the central hypothesis of the thesis and shed light on the relative effects of climate at regional and local scales
Benabdelmoumène, Mohand Salah. "Contribution à l'étude des relations sol-végétation dans les landes d'altitude de la partie orientale des Pyrénées". Toulouse 3, 1988. http://www.theses.fr/1988TOU30067.
Texto completoMazier, Florence. "Modelisation de la relation entre pluie pollinique actuelle, végétation et pratiques pastorales en moyenne montagne (pyrénées et jura) : application pour l'interprétation des données polliniques fossiles". Besançon, 2006. http://www.theses.fr/2006BESA2022.
Texto completoThe reliability of pollen analysis as a tool for the reconstruction of past vegetation and landscape depends on our knowledge of modern ecosystems. These reconstructions involve precise understanding of modern plant communities and how they are reflected in pollen assemblages. The calibration between present pollen deposition and vegetation has been studied with two approaches in pastoral areas of middle range mountains. In Pays Basque, the comparative approach differentiated well dispersed pollen taxa and a pool of pollen which indicates local grazing activities. These results were used to reconstruct local pastoral activity from fossil pollen records for the last 2000 years. Multiscale interpretation of pollen assemblages, use of multiproxy (pollen and non pollen palynomorphs) and complementary information from other fields (pastoral archaeology, history) give a better understanding of spatial dimensions and intensity of pastoral activities. In the Jura Mountains, Extended R-value model was used to estimate the relevant source area of pollen assemblages deposited in moss polsters (Radius of 300 m). Pollen productivity estimates were calculated for several taxa characteristics of woodland pasture landscape. This set of data is the first step for quantitative reconstruction of past landscape. These approaches aim to assess the structure and the composition of past landscape and to evaluate pastoral impact on past ecosystems. They will provide useful information for predictive models in various disciplines (climate modeling, nature conservancy…)
Corenblit, Dov. "Structure et dynamique du paysage fluvial : études des rétroactions entre processus hydro-géomorphologiques et dynamique de la végétation du Tech (Pyrénées orientales)". Toulouse 3, 2006. http://www.theses.fr/2006TOU30197.
Texto completoBelet, Jean-Marc. "Variations tardiglaciaires et holocènes dans la limite supérieure de la forêt dans les Pyrénées centrales : l'exemple du vallon d'Estibère (Hautes-Pyrénées, France)". Toulouse 3, 2001. http://www.theses.fr/2001TOU30195.
Texto completoIn the central Pyrénées, the Estibère valley is the subject of actuo- and paleoecological work aiming to reconstruct timberline fluctuations during the last 15000 years. In the first part, we present the main physic and biologic elements of the study area. The aim of the second part is to verify in actual whether it's possible to caracterize the timberline in term of modern pollen rain. Three altitudinal transects are presented (80 modern pollen spectra and floristic inventory). .
Pasche, Frédéric. "Dynamique et fonctionement des communautés végétales subalpines pyrénéennes". Toulouse 3, 2003. http://www.theses.fr/2003TOU30167.
Texto completoDynamics and leaf nitrogen resorption of Rhododendron ferrugineum, an evergreen species, were investigated in the subalpine level of the Pyrenees. This shrub invades meadows slowly by layering and seed recruitment. Leaf resorption takes place along the whole life span (18 at 25 month) and essentially during the first 16 month. During spring growth, the nitrogen requirements of young individuals are mainly supported by internal remobilisation, particularly from leaves. In older individuals, this remobilisation is weaker and depends on leaf life span, which could be determined by soil fertility. Mineral nitrogen uptake reveals complementarity of the interactions between the dominating species in meadows (Ericaceae/Poaceae). Together, these mechanisms can favour the establishment and development of Rhododendron in the subalpine plant community
Libros sobre el tema "Étages de végétation – Pyrénées"
naturelle, Muséum national d'Histoire. Haute Montagne des Pyrénées Orientales : Dynamique de la Végétation de la Haute Montagne des Pyrénées Orientales et Impact des Sociétés du Néolithique Final Au Bronze Moyen: Analyse Palynologique Multi-Sites et Multi-indicateurs. Independently Published, 2022.
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