Balzano, Angela (2017) Functional wood traits: xylogenesis, tree rings and intra-annual density fluctuations (IADFs) in Mediterranean species. [Tesi di dottorato]


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Item Type: Tesi di dottorato
Lingua: English
Title: Functional wood traits: xylogenesis, tree rings and intra-annual density fluctuations (IADFs) in Mediterranean species
Date: 10 April 2017
Number of Pages: 181
Institution: Università degli Studi di Napoli Federico II
Department: Biologia
Dottorato: Agrobiologia e agrochimica
Ciclo di dottorato: 29
Coordinatore del Corso di dottorato:
De Micco, VeronicaUNSPECIFIED
Date: 10 April 2017
Number of Pages: 181
Uncontrolled Keywords: Wood traits, tree ring, Intra-annual density fluctuations, xylogenesis, Mediterranean species
Settori scientifico-disciplinari del MIUR: Area 05 - Scienze biologiche > BIO/03 - Botanica ambientale e applicata
Date Deposited: 06 May 2017 14:55
Last Modified: 13 Mar 2018 12:18
DOI: 10.6093/UNINA/FEDOA/11747


The occurrence of long and severe summer drought periods, forecasted for the Mediterranean basin (IPCC, 2013), is expected to affect cambial activity and wood formation, thus altering tree growth and vegetation dynamics thus affecting the productivity of forests (Sarris et al., 2007; Martinez del Castillo et al., 2016). In such a context, is important to understand the strategies in water utilisation exploited by different Mediterranean tree and shrub species in response to variation in the climate conditions. Such knowledge would allow to predict the response of Mediterranean ecosystems to climate change and help in decision-making for a focused forest management. The general aim of the thesis is to acquire knowledge on the adaptation strategies operated at the xylem level by Mediterranean species to cope with the intra-annual variation of environmental conditions, and in particular with summer drought. This main aim has been pursued through the study of wood functional traits within tree-ring series, focusing in tree rings presenting Intra-annual density fluctuations (IADFs). The starting hypothesis of this Doctoral Thesis is that the Mediterranean woody species could respond to the seasonal distribution of precipitations and temperature patterns, showing a bimodal model of xylem growth identifiable by main trends in the wood functional traits, attested by the occurrence of IADFs within tree rings.

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