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Spring temperature backlashes

Tree species naturally occurring in central and northern Europe have the ability to acclimatize to seasonal changes in temperature, and can therefore tolerate very low temperatures during winter. However when trees start to deharden during spring, their sensitivity to sudden temperature backlashes increases.

Even one or a few spring backlashes can be enough to cause a lasting negative effect on a forest stand, especially if the frost event occurs during the juvenile phase. A warmer climate will influence the fine balance between an increased risk for frost damage caused by earlier onset of vegetation processes and a decreased risk caused by generally warmer temperatures. To get a better picture of the risk of damage when the climate is changing, we develop models on tree phenology and frost hardiness. 

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Contact information

Anna Maria Jönsson

Department of Physical Geography and Ecosystem Science

Phone: +46 46 222 94 10

Email: 
anna_maria.jonsson [at] nateko.lu.se

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Department of Physical Geography and Ecosystem Science
Lund University
Sölvegatan 12
S-223 62 Lund
Sweden