NDLI: Temporal shifts in leaf phenology of beech (Fagus sylvatica) depend on elevation

Content Provider	Springer Nature Link
Author	Čufar, Katarina Luis, Martin Saz, Miguel Angel Črepinšek, Zalika Kajfež Bogataj, Lučka
Copyright Year	2012
Abstract	We analyzed the leaf phenology of European beech (Fagus sylvatica) and its variation due to spatial and temporal climatic variability, using a modified data set of the phenological network in Slovenia. We used first leaf unfolding (LU) and general leaf colouring (LC) time series of 47 sites (altitudes from 55 to 1,050 m a.s.l.) and corresponding climate series (52 of precipitation and 38 of temperature) for the period 1955–2007, collected by the Environmental Agency of the Republic of Slovenia. Across the network in average, LU occurred from 14 April until 13 May, and LC from 3 October until 29 October. LU was delayed by 2.6 days and LC was promoted by 1.9 days when the altitude increased by 100 m. Year-to-year variation of LU was significantly correlated with March and April temperatures. March temperatures had a greater effect at lower elevations and April ones at higher elevations. LC was related to August and September temperatures, and occurred later if the temperatures were higher. Recently, March and April temperatures showed an increasing trend and LU occurred 1.52 days earlier per decade at 1,000 m a.s.l. but no significant shifts were observed at lower altitudes. August temperatures were also increasing but the trends of LC were not significant and were not clearly related to altitude. Our detailed sub-regional data from a relatively small area with high geographic variability showed that changes in climate affect phenological response, mainly leaf unfolding, to a greater degree at higher altitudes than at lower ones.
Starting Page	1091
Ending Page	1100
Page Count	10
File Format	PDF
ISSN	09311890
Journal	Trees
Volume Number	26
Issue Number	4
e-ISSN	14322285
Language	English
Publisher	Springer-Verlag
Publisher Date	2012-02-03
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	European beech (Fagus sylvatica) Phenology Temperature Leaf unfolding Leaf colouring Climate change Plant Anatomy/Development Plant Sciences Forestry Plant Pathology Agriculture Plant Physiology
Content Type	Text
Resource Type	Article
Subject	Ecology Physiology Plant Science Forestry

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