-6Ê Natural Regeneration of Scots Pine and Norway Spruce Close to the Timberline
to the timberline in northern Finland. Silva Fennica 40(3): 443–458. Two different datasets were analyzed in order to clarify the factors that affect regeneration success of Scots pine (Pinus sylvestris) and Norway spruce (Picea abies) in the climatically extreme areas in northern Finland. First, pi...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.569.9181 2023-05-15T17:42:18+02:00 -6Ê Natural Regeneration of Scots Pine and Norway Spruce Close to the Timberline In Northern Finland Vesa Juntunen The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.569.9181 http://www.metla.fi/silvafennica/full/sf40/sf403443.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.569.9181 http://www.metla.fi/silvafennica/full/sf40/sf403443.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.metla.fi/silvafennica/full/sf40/sf403443.pdf Norway spruce regeneration timberline tree line seed maturity seedling mortality text ftciteseerx 2016-01-08T12:26:23Z to the timberline in northern Finland. Silva Fennica 40(3): 443–458. Two different datasets were analyzed in order to clarify the factors that affect regeneration success of Scots pine (Pinus sylvestris) and Norway spruce (Picea abies) in the climatically extreme areas in northern Finland. First, pine seed maturity and the number of cones in the trees were investigated at five pairs of study sites during the period 1997–2003. Secondly, the rate of seedling establishment and seedling survival of Scots pine and Norway spruce were monitored and compared among three different timberline zones (forest zone, timberline, tree line) in 13 localities during the period 1983–1999. The first study showed that both cone production (bud formation) and seed maturity may be limiting factors for successful reproduction in the climatically marginal habitats. Seed maturity correlated well with the temperature sum of the summer, but variation in the number of cones had a periodic component rather than strictly following the temperature sum of the summer of bud formation. Monitoring surveys since 1983 showed that pine and spruce regenerated more or less regularly in all the zones during 1983–1999. However, seedling mortality of pines was much higher compared to spruce. In general, initially small sized seedlings showed higher mortality compared with larger ones. Text Northern Finland Unknown Norway |
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Open Polar |
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Unknown |
op_collection_id |
ftciteseerx |
language |
English |
topic |
Norway spruce regeneration timberline tree line seed maturity seedling mortality |
spellingShingle |
Norway spruce regeneration timberline tree line seed maturity seedling mortality In Northern Finland Vesa Juntunen -6Ê Natural Regeneration of Scots Pine and Norway Spruce Close to the Timberline |
topic_facet |
Norway spruce regeneration timberline tree line seed maturity seedling mortality |
description |
to the timberline in northern Finland. Silva Fennica 40(3): 443–458. Two different datasets were analyzed in order to clarify the factors that affect regeneration success of Scots pine (Pinus sylvestris) and Norway spruce (Picea abies) in the climatically extreme areas in northern Finland. First, pine seed maturity and the number of cones in the trees were investigated at five pairs of study sites during the period 1997–2003. Secondly, the rate of seedling establishment and seedling survival of Scots pine and Norway spruce were monitored and compared among three different timberline zones (forest zone, timberline, tree line) in 13 localities during the period 1983–1999. The first study showed that both cone production (bud formation) and seed maturity may be limiting factors for successful reproduction in the climatically marginal habitats. Seed maturity correlated well with the temperature sum of the summer, but variation in the number of cones had a periodic component rather than strictly following the temperature sum of the summer of bud formation. Monitoring surveys since 1983 showed that pine and spruce regenerated more or less regularly in all the zones during 1983–1999. However, seedling mortality of pines was much higher compared to spruce. In general, initially small sized seedlings showed higher mortality compared with larger ones. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
In Northern Finland Vesa Juntunen |
author_facet |
In Northern Finland Vesa Juntunen |
author_sort |
In Northern Finland |
title |
-6Ê Natural Regeneration of Scots Pine and Norway Spruce Close to the Timberline |
title_short |
-6Ê Natural Regeneration of Scots Pine and Norway Spruce Close to the Timberline |
title_full |
-6Ê Natural Regeneration of Scots Pine and Norway Spruce Close to the Timberline |
title_fullStr |
-6Ê Natural Regeneration of Scots Pine and Norway Spruce Close to the Timberline |
title_full_unstemmed |
-6Ê Natural Regeneration of Scots Pine and Norway Spruce Close to the Timberline |
title_sort |
-6ê natural regeneration of scots pine and norway spruce close to the timberline |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.569.9181 http://www.metla.fi/silvafennica/full/sf40/sf403443.pdf |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Northern Finland |
genre_facet |
Northern Finland |
op_source |
http://www.metla.fi/silvafennica/full/sf40/sf403443.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.569.9181 http://www.metla.fi/silvafennica/full/sf40/sf403443.pdf |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766144152388501504 |