期刊名称：Science et changements planétaires / Sécheresse
印刷版ISSN：1147-7806
电子版ISSN：1777-5922
出版年度：2010
卷号：21
期号：1
页码：34-41
DOI：10.1684/sec.2010.0228
出版社：John Libbey Eurotext
摘要：Figures See all figures Authors Amel Ennajah , Frédéric Guibal , Belgacem Hanchi , Florent Mouillot , Salah Garchi INRGREF Unité d’agro-sylvo-pastoralisme Rue Hédi Karray BP10 2080 Ariana Tunis Tunisie, Institut méditerranéen d’écologie et de paléoécologie Bâtiment Villemin Europôle de l’Arbois BP 80 13545 Aix-en-Provence France, Institut national de recherche et d’analyse physique Pôle technologique Sidi Thabet Ariana 2020 Tunis Tunisie, CNRS CEFE UMR 5175 Équipe Dream IRD 1919, route de Mende 34293 Montpellier cedex France Key words: climate, cork oak dendrochronology, forestry, growth, Tunisia DOI : 10.1684/sec.2010.0228 Page(s) : 34-41 Published in: 2010 Cork oak (Quercus suber) stands represent most of the forest areas in northwest Tunisia. The preservation of these forests, constantly degraded for several years, constitutes an outstanding ecological issue. Dendrochronological study of five cork oak populations in western Tunisia aims at identifying climate parameters which influence cork oak radial growth. Cross-dating of tree-ring series is made difficult by the high number of scars caused by cork removal. Ring width to climate relations are therefore analysed by means of statistical model (response function) highlighting the acute sensitivity of cork oak to climate effects. Wide variability appears in the relationships between different cork oak populations and the climate. Precipitation is of major importance during the period preceding the growing season and varies according to the site. Temperatures play a minor role even for elevated sites. Moving response function profiles indicate an increased reaction to precipitation in the late 20th century.
关键词：climate; cork oak dendrochronology; forestry; growth; Tunisia
