Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/99968
COMPARTIR / EXPORTAR:
logo share SHARE BASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE

Invitar a revisión por pares abierta
Campo DC Valor Lengua/Idioma
dc.contributor.authorGarcía-González, Ignacio-
dc.contributor.authorPérez de Lis, Gonzalo-
dc.contributor.authorChapela Rodríguez, David-
dc.contributor.authorRozas Ortiz, Vicente Fernando-
dc.date.accessioned2014-07-16T09:14:32Z-
dc.date.available2014-07-16T09:14:32Z-
dc.date.issued2011-09-
dc.identifier.citationEurodendro Conference: 18 (2011)-
dc.identifier.urihttp://hdl.handle.net/10261/99968-
dc.descriptionComunicación presentada en Engelberg (Suiza) los días 19-23 de septiembre de 2011.-
dc.description.abstractQuercus robur is a nemoral oak widespread all over Europe, and it is gradually replaced by species adapted to better tolerate summer drought towards the South of the continent. Among these, Quercus pyrenaica is a sub-Mediterranean tree, which constitutes the most typical tree species along the Atlantic-Mediterranean transition in the Iberian Peninsula. However, it is well-adapted to continental or mountain conditions, having a delay up to two months in leaf flushing as compared to Q. robur. Both oak species reach their distribution boundaries in NW Spain. Recent climate warming is intensifying summer drought in the region, and probably facilitating the displacement of Q. robur by Q. pyrenaica, better adapted to less water availability during the growing season. However, summer drought is especially remarkable at low altitudes, where Q. pyrenaica still has a much shorter active period than Q. robur because of its late bud break. In order to compare the behavior of these two oaks under such conditions, we carried out a wood anatomical study on the Island of Cortegada (National Park Atlantic Islands, NW Spain), where both occur together at sea level. Climate at the study site is mainly oceanic, with a very mild and rainy winter, but having a moderate summer drought. For each species, we developed chronologies of several anatomical variables derived from the earlywood vessels, which were compared between species, and also used to establish their relationships to climate. The results showed an important impact of winter temperatures on tree growth. Earlywood vessel formation of Quercus pyrenaica was mainly related by climatic conditions during dormancy and quiescence, and to a lesser extent, during the previous growing season, indicating that it is mainly controlled by the trade-off between carbohydrate storage and its consumption by respiration out of the vegetation period. Consequently, as ring-porous trees like oaks entirely rely on stored photosynthates to resume growth in spring, the occurrence of warm winters can be detrimental for their performance if assimilation in the active season does not compensate losses by respiration during the dormant period.-
dc.publisherSwiss Federal Institute for Forest, Snow, and Landscape Research-
dc.rightsopenAccess-
dc.titleEffect of mild winter temperatures on the earlywood formation of oaks (Quercus robur and Quercus pyrenaica) under oceanic climate in NW Spain-
dc.typecomunicación de congreso-
dc.date.updated2014-07-16T09:14:32Z-
dc.language.rfc3066eng-
dc.type.coarhttp://purl.org/coar/resource_type/c_5794es_ES
item.openairetypecomunicación de congreso-
item.cerifentitytypePublications-
item.grantfulltextopen-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith Fulltext-
Aparece en las colecciones: (MBG) Comunicaciones congresos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato
García-González_Effect_mild...pdf393,33 kBAdobe PDFVista previa
Visualizar/Abrir
Show simple item record

CORE Recommender

Page view(s)

232
checked on 29-mar-2024

Download(s)

85
checked on 29-mar-2024

Google ScholarTM

Check


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.