Drought is more stressful for northern populations of Scots pine than low summer temperatures
Needle fluctuating asymmetry, which is a non-specific stress indicator, was used to evaluate responses of Scots pine (Pinus sylvestris L.) to annual climatic variation in the Kola Peninsula, NW Russia, during 1992â1999. Although the 30 trees surveyed for this study demonstrated individualistic respo...
| Published in: | Silva Fennica |
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| Main Authors: | , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Finnish Society of Forest Science
2003
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| Subjects: | |
| Online Access: | https://doi.org/10.14214/sf.499 https://doaj.org/article/d4825ce4b10e48ddbaf3fd701a29668e |
| Summary: | Needle fluctuating asymmetry, which is a non-specific stress indicator, was used to evaluate responses of Scots pine (Pinus sylvestris L.) to annual climatic variation in the Kola Peninsula, NW Russia, during 1992â1999. Although the 30 trees surveyed for this study demonstrated individualistic responses to the temperature and precipitation of the growth seasons, at the population level we found no effect of temperature and a significant increase in fluctuating asymmetry with a decline in precipitation during the previous August. This finding suggests that the vitality of Scots pine populations at the northern tree limit is controlled by late summer precipitation rather than by temperatures of the growth season. |
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