Category: Forest

Wood quality after ash dieback

Healthy trees are an important resource for ensuring local regeneration of ash, and for the long-term work concerning preservation and breeding of healthy ash stands. Mapping of healty ash trees has been initialized in Denmark this year, in order to...

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Nutrient loading helps Lutz seedling establishment in Iceland

Forestry in Iceland increased dramatically during the years 1990 – 2007, counting more than 5 million seedlings per year after 2003. With increased afforestation the surveillance of new plantings has increased and many of those have revealed high mortality of...

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The beech in Norway – a late immigrant or an early introduction?

The beech (Fagus sylvatica) in Norway established in 500 and 1000 AD and is mainly distributed in two distinct areas – in Vestfold, eastern Norway, and at Seim in western Norway north of Bergen. As these populations are isolated from...

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Improving the quality of direct seeding

Direct seeding is used mainly for Scots pine and the regeneration results are mostly good; especially compared to natural regeneration. Looking at the results from the seed consumption point of view (seedlings per sown germinable seeds), the outcome in direct...

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New posters about forest trees

The posters are loaded with interesting and easily understood information about the use of trees and the importance of their genetic variation. The posters are made in cooperation with the Norwegian Centre for Science Education. They are in Norwegian, and...

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Who owns the genes of forest trees?

In the Nordic region we are used to a simple and non-bureaucratic exchange of forest genetic resources between countries. This valuable exchange secures access to seeds and breeding material. The report “Seeking appropriate legislation regulating access and exclusive rights to...

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Sorbus – a genus with large variation

Sorbus is a large genus in the rose family (Rosaceae), and counts several hundered species world wide. Today, the genus contains thirteen wild growing species in Norway. Several of these are endemic; growing only in Norway, and some are considered to...

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Lammas shoots in Norway spruce – a future challenge?

Recently formed shoots are not frost tolerant, and the risk of frost damages in the autumn increases as growth cessation is delayed. Actually, lammas shoots may also enhance the risk of frost damages during the winter. Lammas shoots is not...

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Norway spruce seed orchards – Swedish forestry´s golden nugget

2006 was a good year for seed production, and the Swedish seed orchards for spruce produced almost twelve tons of seeds. This is enough for 1.2 billion plants that can regenerate 450 000 hectares. However, good years for seeding occur...

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Nordic forest ecosystem under the magnifying glass

By Egbert Beuker, Finnish Forest Research Institute Evoltree includes 44 partners from 15 European countries, and it links four major disciplines (genomics, genetics, ecology and evolutionary studies). One of the sites chosen for intensive study is located in Punkaharju in...

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