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Silva Fennica no. 120 | 1966

Category : Article

article id 4734, category Article
Yrjö Kangas. (1966). Valtion metsien hakkuupoistuma ja sen rakenne : Vuosiin 1954-1958 kohdistuva selvittely. Silva Fennica no. 120 article id 4734. https://doi.org/10.14214/sf.a14292
English title: Felling volume and its structure in the Finnish State Forests in 1954-1958 .
Original keywords: hakkuut; valtionmetsät; hakkuumäärät; jätepuu; 1954-1958; hakkuupoistuma; hakkuukertymä
English keywords: Finland; state forests; waste wood; loggings; merchantable timber; felling volume
Abstract | View details | Full text in PDF | Author Info

The purpose of this investigation was to study the felling volume and its structure in the State forests of Finland. Special attention was paid on the proportion of waste wood within the felling volume. This information was in demand for the general plan of the State forests that was being prepared at the same time. The survey was performed using a sampling method, and it represented the districts in the northernmost Finland, Ostrobothnia, Eastern Finland and Western Finland of the Forest Services.

The proportion of merchantable timber of the total felling volume was lowest in the northernmost Finland, less than 2/3 of the total cut. In Ostrobothnia the share was ¾, Eastern Finland 4/5 and in Western Finland 5/6. When the tree species were compared, the proportion of waste wood was largest in broadleaved trees, especially in the Northern Finland, while for Scots pine it was lowest. For Norway spruce the share of merchantable timber is markedly lower in the northernmost part of the country, where, for instance, decay increases the proportion of waste wood. For birch, demand of wood influences most the proportion of waste wood.

In general, the proportion of waste wood and merchantable timber in the felling volume was influenced by changes in the demand of timber, structure of the stands, and the felling method. The demand of the timber assortment affects most in the amount of waste wood. The more valuable the timber assortment is, the less waste wood is left in the cutting area.

The PDF includes a summary in German.

  • Kangas, E-mail: yk@mm.unknown (email)

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