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Forest Science Database

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Abstract

The area covered by boreal forests accounts for ∼16% of the global and 22% of the Northern Hemisphere landmass. Changes in the productivity and functioning of this circumpolar biome not only have strong effects on species composition and diversity at regional to larger scales, but also on the...

Author(s)
Hellmann, L.; Agafonov, L.; Ljungqvist, F. C.; Churakova, O.; Düthorn, E.; Esper, J.; Hülsmann, L.; Kirdyanov, A. V.; Moiseev, P.; Myglan, V. S.; Nikolaev, A. N.; Reinig, F.; Schweingruber, F. H.; Solomina, O.; Tegel, W.; Büntgen, U.
Publisher
Institute of Physics Publishing, Bristol, UK
Citation
Environmental Research Letters, 2016, 11, 7, pp 074021
Abstract

Recent findings indicated spruce from North America and larch from eastern Siberia to be the dominating tree species of Arctic driftwood throughout the Holocene. However, changes in source region forest and river characteristics, as well as ocean current dynamics and sea ice extent likely influence ...

Author(s)
Hellmann, L.; Tegel, W.; Kirdyanov, A. V.; Eggertsson, Ó.; Esper, J.; Agafonov, L.; Nikolaev, A. N.; Knorre, A. A.; Myglan, V. S.; Churakova, O.; Schweingruber, F. H.; Nievergelt, D.; Verstege, A.; Büntgen, U.
Publisher
Institute of Arctic and Alpine Research, Boulder, USA
Citation
Arctic, Antarctic, and Alpine Research, 2015, 47, 3, pp 449-460
Abstract

Three hundred and seventy-seven tree-ring width site chronologies including all eight principal forest tree species within Central Europe (5° to 15°E; 43° to 53°N) are expressed as Cropper-values and mapped using a Geographical Information System (here after referred to as GIS). Spatial...

Author(s)
Neuwirth, B.; Schweingruber, F. H.; Winiger, M.
Publisher
Elsevier GmbH, Jena, Germany
Citation
Dendrochronologia, 2007, 24, 2/3, pp 79-89
Abstract

In a bog site in way of paludification, a pine stand is declining, which presently is an infrequent phenomenon on the Swiss Jura scale. A transect was positioned in the bog, from the external and driest part (pine (Pinus uncinata var. rotundata)-spruce (Picea abies) stand) towards the central and...

Author(s)
Freléchoux, F.; Buttler, A.; Schweingruber, F. H.; Gobat, J. M.
Publisher
EDP Sciences, Les Ulis, France
Citation
Annals of Forest Science, 2004, 61, 4, pp 309-318
Abstract

We investigated the response of conifer trees in northern Eurasia to climate change and increasing CO2 over the last century by measuring the carbon isotope ratio in tree rings. Samples from Larix, Pinus and Picea trees growing at 26 high-latitude sites (59-71°N) from Norway to Eastern Siberia were ...

Author(s)
Saurer, M.; Siegwolf, R. T. W.; Schweingruber, F. H.
Publisher
Blackwell Publishing, Oxford, UK
Citation
Global Change Biology, 2004, 10, 12, pp 2109-2120
Abstract

Growth rings were analysed from young dead Pinus mugo, P. cembra and Larix decidua trees, planted above the present day treeline in Davos, Switzerland, in a study of growth conditions and dieback due to a combination of climatic factors and pathogenic fungi (snow blight (Phacidium infestans) and ...

Author(s)
Frei Raj, S.; Schweingruber, F. H.
Citation
Dendrochronologia, 1993, No. 11, pp 159-164
Abstract

In Jura bogs, on deep and nutrient-poor peat, the ecotone between bog pine (Pinus uncinata var. rotundata) forest and Norway spruce (Picea abies) forest is sharp and, in a few disturbed situations, no succession pine forest-spruce forest occurs. The bog Les Saignolis lies at the top of an...

Author(s)
Freléchoux, F.; Buttler, A.; Gillet, F.; Gobat, J. M.; Schweingruber, F. H.
Publisher
EDP Sciences, Les Ulis, France
Citation
Annals of Forest Science, 2003, 60, 4, pp 347-356
Abstract

Scots pine provenances from all over Russia planted in 1964 at the forest-steppe zone were analyzed. Eight tree-ring characteristics from 12 different provenances were measured densitometrically. The time span of tree-ring observation covers the period from 1969 to 1997. The sensitivity coefficient ...

Author(s)
Savva, Yu. V.; Schweingruber, F. H.; Vaganov, E. A.; Milyutin, L. I.
Publisher
International Association of Wood Anatomists (IAWA), Leiden, Netherlands
Citation
IAWA Journal, 2003, 24, 4, pp 371-383
Abstract

Results are presented of the analysis of centuries-long ring-width trends in 1205 radial tree-ring series from 14 high elevation and middle-to-high latitude sites distributed over a large part of the Northern Hemisphere extratropics. The tree species represented in the collection are from the...

Author(s)
Esper, J.; Cook, E. R.; Schweingruber, F. H.
Publisher
American Association for the Advancement of Science, Washington, USA
Citation
Science (Washington), 2002, 295, 5563, pp 2250-2253
Abstract

Since the end of World War II, especially between 1960 and 1980, natural regeneration in the Swiss Alps accelerated. Predominant causes are connected to socio-economic changes, population shift in urban areas, abandonment of limited yield stands and changes in land management methods. The...

Author(s)
Schöne, B. R.; Schweingruber, F. H.
Publisher
Birkhäuser Verlag AG, Basel, Switzerland
Citation
Botanica Helvetica, 2001, 111, 2, pp 151-168

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