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Recovery of advance regeneration after disturbances: Acclimation of needle characteristics in Picea abies

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This study examined the effect of release on needle properties of Norway spruce advance regeneration in a gap clearing. Needle mass is a variable revealing the acclimation capacity of understorey saplings. Correlations between several needle variables were also examined. A model of needle mass increase over time was developed. Needle mass and shoot length in consecutive years help to describe the dynamics of the advance regeneration response. The analysis suggests that needle and shoot properties had reached new stable conditions 5 years after stand clearance.

Keywords: Acclimation; Picea abies; advance regeneration; correlation; needle characteristics

Document Type: Research Article


Affiliations: 1: Institute of Forestry and Rural Engineering, Estonian Agricultural University, Tartu, Estonia 2: Department of Forest Ecology, University of Helsinki, Helsinki, Finland

Publication date: October 1, 2005

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