More and more wood in Norwegian forests
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lst, The National Forest Inventory, timber, logs, productive forest area, growing stock, growth, quality class, felling class, spruce, pine, broad-leaved treesForestry , Agriculture, forestry, hunting and fishing

The National Forest Inventory2004-2008



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More and more wood in Norwegian forests

The volume of growing stock continues to increase. According to calculations from the National Forest Inventory, the volume has increased by 19 million cubic metres from 2007. The total growing stock in Norwegian forests is now 784 million cubic metres.

Annual increment inside bark, by tree species. 1933-2008. 1 000m3

Growing stock inside bark, by tree species. 1933-2008. 1 000m3

Out of the total growing stock, 725 million cubic metres stand on the productive forest area. The annual increment in productive forest amounted to 23.6 million cubic metres in 2008, while the annual increment in total was almost 25 million cubic metres. The increment decreased slightly for the third year in a row.

More broad-leaved

Spruce is the most common species of tree with 45 per cent of growing stock, followed by pine with 32 per cent and broad-leaved with 23 per cent. During the last 40 years, the spruce stock has increased by 56 per cent, pine by 90 per cent and the broad-leaved by 136 per cent. In total, the growing stock is 80 per cent higher than 40 years ago.

More spruce in Western Norway

Spruce was most common in the counties of Sør-Trøndelag and Nord-Trøndelag and represented 63 per cent of the volume of growing stock in these counties. In the well forested counties in the eastern part of Norway, spruce also amounted to more than half of the volume. In the northern part of Norway, broad-leaved was most common with 62 per cent of the volume of growing stock. In the western parts of the country, the growing stock was the same level as for spruce, pine and broad-leaved. Fifteen years ago, spruce corresponded to a quarter of the total volume.

Growing stock inside bark, by species of tree and surveyed regions. 2003-2008. 1 000 m3

Highest occurrence of dead wood in Telemark and Agder

Habitats for vulnerable and endangered species in forest are registered in the same way as for ordinary forest management planning. For the country as a whole, dead wood lying is the most common of these habitats and was found on 12.7 per cent of the productive forest area. The forest region with the counties of Hedmark, Østfold, Oslo and Akershus had the lowest occurrence of dead wood lying with 6.2 per cent. On the other hand, the counties of Telemark, Aust-Agder and Vest-Agder had the highest occurrence with 18.5 per cent.

The productive forest area below the coniferous forest line, excluding Finnmark county, is estimated to be 74 148 square kilometres. In addition, 17 100 square kilometres is considered as unproductive forest area. The total area of wooded land is approximately 120 000 square kilometres.