Επίπεδο εγγραφής:	Έργο ολοκληρωμένο
Χρονολογία:	2022
Δημιουργός:	Koulelis, Panagiotis Fassouli, Vassileia Petrakis, Panos Ioannidis, Kostas Alexandris, Stavros Κουλελής, Παναγιώτης Πετράκης, Πάνος Ιωαννίδης, Κώστας
Τίτλος:	The impact of selected climatic factors on the growth of Greek fir on Mount Giona in mainland Greece based on tree ring analysis
Γλώσσα:	Αγγλικά
Λέξεις-Κλειδιά:	Greek fir; Tree ring analysis; Forest management
Περίληψη:	Tree ring chronologies are considered critical when investigating important relations between tree growth and climate. In the present study, we studied the impact of precipitation and air temperature on Abies cephalonica, an endemic Greek species, by evaluating radial growth data from tree ring analysis. The two sampled stands had elevations of 988 m and 1.274 m above sea level, respectively, and were located on Mountain Giona in central Greece. The hyperbola two-parameter function was used for fitting a tree growth model and detrending, separetly for the two sites. After de trending, the Average Tree Ring Width Index (ARWI) values were calculated and the averaged values per site were standardized and plotted. Due to the lack of tempera ture data, during the last 30 years, we used the Standardized Precipitation Index (SPI) based only on precipitation, to investigate the impact of extreme drought on Abies cephalonica growth at the two sites. We tested both a 6-month time step (SPI6) cal culated for March to August and a 12-month step (SPI12) calculated for October-September and representing the hydrological year and correlated the results with ARWI. Furthermore, separate correlations between selected average temperatures, precipi tation (for period 2009–2019) and radial growth were tested. We found that SPI is use ful to reveal negative or positive growth due to extreme climate conditions. The ext reme drought event of 1985 (SPI < –2) was followed by an important growth decrease for both stands. In contrast, the extremely wet year of 1971 (SPI > 2) was followed by increased growth in the following year (1972), again for both stands. Less pronoun ced events, as indicated by the SPI, caused less clear impacts on the measured radial growth. A general decline in growth was observed after 1998 for both elevations and was not connected with SPI. We suggest that this decrease was associated to obser ved defoliations by Choristoneura murinana, a moth feeding on shoots
Εξειδίκευση τύπου :	Άρθρο
Τίτλος περιέχουσας πηγής:	Austrian Journal of Forest Science = Centralblatt fuer das gessamte Forstwessen
Άδεια χρήσης:	Αναφορά Παρόμοια Διανομή
Διάθεση ψηφιακού τεκμηρίου:	Πλήρης
Αρίθμηση περιέχουσας πηγής:	vol.1
Σελίδες περιέχουσας πηγής:	pp.1-30
Εμφανίζεται στις Ομάδες Τεκμηρίων:	4.1.1. Δασική Διαχειριστική

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