Full text of this article is only available in PDF format.

Tapio Linkosalo (email)

Regularities and patterns in the spring phenology of some boreal trees

Linkosalo T. (1999). Regularities and patterns in the spring phenology of some boreal trees. Silva Fennica vol. 33 no. 4 article id 647. https://doi.org/10.14214/sf.647

Abstract

Phenological time series of flowering and bud burst of Populus tremula (L.) and Betula sp., and the flowering of Pinus sylvestris (L.), Alnus glutinosa (L.) and Alnus incana (L.) were constructed from data collected in Finland during the period 1896–1955. The resulting combined time series were examined with two aims in mind: first, to determine the phenological regularities between different species and, second, to detect patterns of spring advancement over a geographically large area. The results indicate that the geographical pattern of spring advancement is rather uniform from year to year, and between different species. Furthermore, the mechanisms regulating the timing of phenological events in different species seem to function in a similar way, suggesting an unanimous optimal response to climatic conditions.

Keywords
Populus tremula; Pinus sylvestris; flowering; Alnus glutinosa; bud burst; Alnus incana; phenological regulation; phenological time series; Betula sp.

Author Info
  • Linkosalo, University of Helsinki, Department of Forest Ecology, Unioninkatu 40 B, P.O. Box 24, FIN-00014 University of Helsinki, Finland E-mail tapio.linkosalo@helsinki.fi (email)

Received 13 April 1999 Accepted 29 September 1999 Published 31 December 1999

Views 3300

Available at https://doi.org/10.14214/sf.647 | Download PDF

Creative Commons License CC BY-SA 4.0

Register
Click this link to register to Silva Fennica.
Log in
If you are a registered user, log in to save your selected articles for later access.
Contents alert
Sign up to receive alerts of new content

Your selected articles
Your search results
Kärkkäinen M., Pietilä J. et al. (1985) Impact bending strength of Finnish tree species .. Silva Fennica vol. 19 no. 4 article id 5255
Lehtiniemi T., (1976) Effect of ionizing radiation on the germination .. Silva Fennica vol. 10 no. 1 article id 4930