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O. J. Lukkala

Lounais-Suomen metsien puulajihistoriasta

Lukkala O.J. (1934). Lounais-Suomen metsien puulajihistoriasta. Acta Forestalia Fennica vol. 40 no. 18 article id 7295. https://doi.org/10.14214/aff.7295

English title: The history of tree species in southwest Finland.


Pollen analysis has given information on development of the tree species composition after the ice age, but this kind of studies have not been published in Finland. In this study, pollen analysis was performed in five peatlands in the southwest Finland. According to the analysis, the forests of the area have had similar tree species composition for many thousands of years. Scots pine (Pinus sylvestris L.) has been the dominant species as long as there has been Norway spruce (Picea abies (L.) H. Karst.) in the area. Norway spruce seems to have arrived about 4,500 years ago. It increased slowly in the beginning, and after reaching a maximum has been slowly decreasing. Before spruce arrived, Betula sp. was more abundant, and seemed to be the dominant tree species in some places. Traces of fire in the peat layers indicate that forest fires have been common before people arrived in the area, and may have beneficial to birch. Like Betula sp., also Alnus sp. were more common before spruce arrived. Also pollen of other broadleaved species, for example, Tilia sp., Ulmus sp. and Corylus could be found. However, Quercus pollen was not found. The paludification of the peatlands had begun at different times which indicates that there has not been a common cause for the development of the peatlands in the area.

The PDF includes a summary in German.

Original keywords
siitepölyanalyysi; suo; puulajisuhteet

English keywords
pollen analysis; tree species composition; peatland

Published in 1934

Available at https://doi.org/10.14214/aff.7295 | Download PDF

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