RESILFOR (REstoring SILver-fir FORest)
LIFE08 NAT /IT/000371
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Caratterizzazione della diversità vegetale nei boschi di faggio dell’Italia centro-settentrionale: un approccio metodologico a fini conservazionistici Version:01

Una pubblicazione realizzata sulla base dei dati raccolti con l'Azione A3 del progetto LIFE RESILFOR che ha permesso di acquisire dati standardizzati sulle componenti naturali, sulla biodiversità e la biomassa delle cinque foreste di Faggio con abete bianco ricadenti nei SIC di RESILFOR.

La pubblicazione ha visto il lavoro di giovani ricercatori dell'Università di Siena (Matteo Marcantonio, Alessandro Chiarucci, Simona Maccherini, Daniela Guglietta, Giovanni Bacaro).





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2012-07-29
789.56 KB
1900
PROGETTO LIFE-NATURA CONSERVAZIONE DELLE ABETAIE E FAGGETE APPENNINICHE IN EMILIA-ROMAGNA di G. Vignali, P. Piovani, F. Frattini, A. Vanini e S. Carboni

IL  PROGETTO  LIFE-NATURA  “CONSERVAZIONE  DELLE  ABETAIE  E  FAGGETE  APPENNINICHE  IN  EMILIA-ROMAGNA” AFFRONTA UN TEMA DI GRANDE RILIEVO A LIVELLO NAZIONALE: LA RICOSTITUZIONE DELLA FORESTA APPENNINICA PROFONDAMENTE ALTERATA NELLA COMPOSIZIONE SPECIFICA, NELLA STRUTTURA E NELLA FISIONOMIA. NEL PROGETTO SONO PROPOSTE SOLUZIONI INNOVATIVE PER FAVORIRE LA BIODIVERSITA’ E LA CONSERVAZIONE “IN SITU” ED “EX SITU” DI SPECIE OGGI PRESENTI IN POPOLAZIONI FORESTALI IN FORTE REGRESSIONE.





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2011-04-08
0 B
1733
Tree-ring growth of silver fir (Abies alba Mill.) in two stands under different silvicultural systems in central Italy - Maria Chiara Manetti, Andrea Cutini

Abstract
A preliminary analysis was made of growth trends in two silver fir forests in the Apennines in central Italy. The forests are closely located but were managed differently in the past. The aim was to verify the climatic variation over time, the influence of extreme events on radial growth and the role of silvicultural systems in defining growth response.
The  two  forests  have  distinct  structures  due  to  differing  past  silvicultural  management.  The  Camaldoli  Forest, containing one-storeyed, evenaged, pure silver fir stands, was essentially managed in the past for wood production and featured high plantation density, low to moderate thinning, and clear cutting every 80–100 years. The La Verna Forest includes multi-layered, unevenaged stands that are mixed in with beech and other broadleaves. Increment cores were collected from aged dominant and healthy trees in the two forests. Climatic data were taken from the Camaldoli station and covers the period 1885–1994. All the analysed dendroecological parameters displayed similar patterns and indicated suitable site conditions for the silver fir. Silvicultural systems played an important role in defining growth pattern and rate. In the evenaged system there were higher growth rates and a greater number of pointer years, whereas there were lower growth rates and long, homogeneous development stages in the semi-natural conditions of La Verna.
A rising growth trend recorded in the last three decades in both series could be explained by the consistent extension of the growing season due to a significant increase of mean spring and autumn temperatures. No correlation was found with precipitation while significant correlations were found between tree ring growth and February, April and August temperatures. Preliminary results indicated that the silvicultural system does not bias, but just enhances the ability of the species to record the effects of disturbing factors.

Keywords: Abies alba; Evenaged and unevenaged structure; Silviculture; Tree ring analysis; Climate





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2011-04-07
228.49 KB
1659
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