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Articles by Bengt Persson
Category : Research article
article id 690,
category
Research article
(1998).
Will climate change affect the optimal choice of Pinus sylvestris provenances?
Silva Fennica
vol.
32
no.
2
article id 690.
https://doi.org/10.14214/sf.690
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Author Info
Provenance experiments with Pinus sylvestris (L.) were evaluated in Sweden north of latitude 60°N. Survival and yield were determined as functions of temperature sum of the site and latitudinal origin of the provenance. Altitudinal origin was of negligible importance. The effects of latitudinal transfer were influenced by temperature sum at the growing site. At the harshest situated sites southward transfer longer than 3° was optimal for survival and yield, whereas transfer effects in a mild climate were weak. Climatic warming would reduce demands of hardiness. However, moderate differences in productivity are expected between formerly optimal seed sources and the ones adapted to changed climatic conditions. Since mortality usually was low in plantations older than 20 years or higher than 2 m, established stands are expected to be robust against adverse effects of climate change.
-
Persson,
Högskolan Dalarna, S-781 88 Borlänge, Sweden
E-mail:
bpn@du.se
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