tailieunhanh - Báo cáo lâm nghiệp: "Phenological investigations of different winter-deciduous species growing under Mediterranean conditions"

Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp Original article đề tài: Phenological investigations of different winter-deciduous species growing under Mediterranean conditions. | Ann. For. Sci. 64 2007 557-568 INRA EDP Sciences 2007 DOI forest 2007033 Available online at Original article Phenological investigations of different winter-deciduous species growing under Mediterranean conditions Fabio Orlandi Tommaso BONOFIGLIO Luigia Ruga Carlo Sgromo Bruno Romano Marco ForNaciari Department of Plant Biology Agroenvironmental and Animal Biotechnology University of Perugia Borgo XX Giugno 74 06121 Perugia Italy Received 6 December 2006 accepted 18 January 2007 Abstract - Phenological stages are the result of biorhythms and environmental factors these last are probably the same ones that caused during evolution adjustments of the species to different climate. The present study was carried out in a Phenological Garden located in central Italy Perugia Umbria Region which contains indicator species common to all International Phenological Gardens. The aim of this study was to determine and analyse the average trends of development of eight plant species and their phenological adjustment to the Mediterranean environment over a nine-year period 1997-2005 . The results of the statistical analyses show a strong relationship between the temperature trends and vegetative seasonal evolutions interpreted by phenological data for all the species considered. Moreover it was demonstrated that the plants studied may approach or close completely the timing gaps eventually created during the first phenological phases adjusting thus the beginning of subsequent phenophases. phenology garden climate trends Mediterranean Résumé - Recherches sur la phénologie de différentes espèces décidues sous climat méditerranéen. Les stades phénologiques résultent des bio-rythmes et des facteurs environnementaux qui sont probablement ceux là même qui ont provoqué les changements d aires de repartition des espèces pendant leur évolution en réponse aux changements climatiques. La présente étude a été réalisée dans un Jardin phénologique situé dans le .