Abstract
Buskfuru og bergfuru – en historie fra
kystskogbruket i Norge. Blyttia 57: 162-170.
Mountain pine and Dwarf Mountain Pine – a history from the coastal
forestry in Norway
The Dwarf Mountain pine Pinus mugo Turra was probably introduced to Norway in the 1860s, and the Mountain pine Pinus uncinata Miller Mirbel, in the 1870s. These pines, owing to their extraordinarily low requirements in quality and depth of soil and their great wind tolerance, have been used to a considerable extent in the reforestation of W Norway. Up to now, 60 million Mountain Pine trees have been planted and the plantations are today covering a total area of about 6–7, 000 hectares. Most of the seed originally came from the high mountains of the Pyrenees and the French Alps. A high proportion of the seed lots was sent as a present from the French Ministry of Agriculture to the Norwegian Forest Society. A few reports about the species self-seeding from plantations into pine bogs and dry coastal heathland are given. However, the expansion must be considered as slow. Some growth figures and general management recommendations about the Mountain Pines in W. Norway are presented. In trials the general yield class has varied from about 1,2 to 5,5 m3 per hectare and year. No serious diseases are reported. Where the sole purpose of planting has been to cover exposed barren land, no other species has displaced the Mountain Pines. Despite these facts, other species, both native and exotic, are today regarded as more favourable – and the use of the tree species has declined.
Bernt-Håvard Øyen, Norsk institutt for
skogforskning – Bergen, Fanaflaten 4, N-5244 Fana.
Blyttia 57(4)
Blyttias
hjemmeside
Lagt ut 23.2.2000 JW