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Forest Science Database

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Abstract

X-ray microdensitometry was applied to a set of Scots pinewood (i.e. low extractive content). Earlywood and latewood properties were determined as minimum and maximum densities of each tree ring and the potential influence of acetone-soluble extractives (i.e. non-structural and secondary...

Author(s)
Helama, S.; Vartiainen, M.; Kolström, T.; Meriläinen, J.
Publisher
Springer Berlin, Heidelberg, Germany
Citation
Wood Science and Technology, 2010, 44, 2, pp 335-3351
Abstract

A collection of subfossil wood of Pinus sylvestris (Scots pine) was exposed to X-ray densitometry. The collection of 64 samples from the southern boreal forest zone was dendrochronologically cross-dated to A.D. 673-1788. Growth characteristics were determined by performing density profiles...

Author(s)
Helama, S.; Vartiainen, M.; Kolström, T.; Peltola, H.; Meriläinen, J.
Publisher
Springer-Verlag GmbH, Heidelberg, Germany
Citation
Vegetation History and Archaeobotany, 2008, 17, 6, pp 675-686
Abstract

For a long time, tree-rings have been thought of as containing almost no variation at timescales of centuries and millennia, i.e. at low frequencies. Here, we show that this might be an issue of data analysis rather than an actual lack of variability. A data set of subfossil and living Scots pines...

Author(s)
Helama, S.; Timonen, M.; Lindholm, M.; Meriläinen, J.; Eronen, M.
Publisher
John Wiley & Sons, Chichester, UK
Citation
International Journal of Climatology, 2005, 25, 13, pp 1767-1779
Abstract

This work seeks to analyse the importance of summer-temperatures on the tree-ring growth of Scots pine (Pinus sylvestris L.) during the past three centuries. Three living-tree chronologies, subfossil pine chronology and one composite tree-ring chronology were constructed from latitudinal and...

Author(s)
Helama, S.; Holopainen, J.; Timonen, M.; Ogurtsov, M. G.; Lindholm, M.; Meriläinen, J.; Eronen, M.
Publisher
Istituto Italiano di Dendrocronologia, Verona, Italy
Citation
Dendrochronologia, 2004, 21, 3, pp 147-154
Abstract

Midsummer (July) temperatures are reconstructed for the last 7500 years using the long ring-width chronology of Scots pine (Pinus sylvestris) from northern Finland. The chronology was built using regional curve standardization (RCS), which allows for long term (low-frequency) variability to be...

Author(s)
Helama, S.; Lindholm, M.; Timonen, M.; Meriläinen, J.; Eronen, M.
Publisher
Arnold, London, UK
Citation
Holocene, 2002, 12, 6, pp 681-687
Abstract

This paper reviews the development of the current 'supra-long' pine (Pinus) chronology for northern Finnish Lapland. In the forest-tundra ecotone region of northern Finnish Lapland over 250 samples from living Scots pines (Pinus sylvestris) and over 1700 samples of subfossil pines have been...

Author(s)
Eronen, M.; Zetterberg, P.; Briffa, K. R.; Lindholm, M.; Meriläinen, J.; Timonen, M.
Publisher
Arnold, London, UK
Citation
Holocene, 2002, 12, 6, pp 673-680
Abstract

A reliable ring-width chronology of Scots pine (Pinus sylvestris L.) in northern Lapland was built, starting from the year 50 AD and covering the last two millennia. The chronology is built from 68 living trees and 274 dead trees, collected between 68 and 70°N and 21 and 30°E. The bulk of the data...

Author(s)
Lindholm, M.; Eronen, M.; Timonen, M.; Meriläinen, J.
Citation
Annales Botanici Fennici, 1999, 36, 2, pp 119-126
Abstract

A master ring-width chronology of Scots pine (Pinus sylvestris) has been built for south-eastern Finland. The research area covers a region surrounding the central parts of the Lake Saimaa basin, between 29°-30°E and 61°-62°N. The chronology covers the last 1250 years, from 743 to 1993. The master...

Author(s)
Lindholm, M.; Meriläinen, J.; Eronen, M.
Publisher
Istituto Italiano di Dendrocronologia, Verona, Italy
Citation
Dendrochronologia, 1998, 16/17, pp 183-190
Abstract

A master ring-width chronology of Scots pine (Pinus sylvestris) has been constructed for southeastern Finland. The research area covers a region surrounding the central parts of the Lake Saimaa basin, between 29°-30°E. and 61°-62°N. At present the chronology covers the last 1250 years, from 743 to...

Author(s)
Lindholm, M.; Meriläinen, J.; Timonen, M.; Eronen, M.
Publisher
Vytautas Magnus University, Vileikos 8, Lithuania
Citation
Proceedings of the international conference: Dendrochronology and environmental trends, 17-21 June, 1988, Kaunas, Lithuania., 1998, pp 271-276
Abstract

This paper describes our first attempt to build ring-width chronologies and model climate/tree-growth relationships in the southern parts of the boreal forest belt in Finland. The research area covers a region surrounding the central parts of the Lake Saimaa basin in eastern Finland, between...

Author(s)
Lindholm, M.; Meriläinen, J.; Timonen, M.; Vanninen, P.; Eronen, M.
Publisher
Urban & Fischer Verlag GmbH & Co. KG, Jena, Germany
Citation
Dendrochronologia, 1997, 15, pp 151-168