A. Kotiaho. (1957). Viljelyskelpoisuustutkimukset, niiden suoritus ja tulosten tiedoittaminen. Silva Fennica no. 92 article id 4660. https://doi.org/10.14214/sf.a14061

English title: Arability research, its execution and information of the results.

Original keywords: metsäopetus; viljavuus; asutustoiminta; jatkokoulutus; suot; viljelymaa; viljelyskelpoisuus; turvemaat

English keywords: peatlands; arable land; forest education; settlement; arability of peatlands

Abstract | View details | Full text in PDF | Author Info

Silva Fennica Issue 92 includes presentations held in 1956 in the 8th professional development courses, arranged for forest officers working in the Forest Service. The presentations focus on practical issues in forest management and administration, especially in regional level. The education was arranged by Forest Service.

In 1925-1944 the Finnish Swamp Cultivation Association (now Finnish Peatland Society, Suoseura) carried out research on the arability of peatlands, mostly on state lands that were the main object of settlement work and the arability of which had been little explored. Later the work has been transferred to the Settlement Department of the Ministry of Agriculture (ASO) and some other authorities. ASO has prepared arability maps based on the nutrient analysis of the lands.

Kotiaho, E-mail: ak@mm.unknown

article id 4656, category Article

P. O. Väisänen. (1957). Maatilojen perustaminen ja niiden elinkelpoisuus erityisesti Pohjois-Suomessa maatalouden harjoittamisen kannalta. Silva Fennica no. 92 article id 4656. https://doi.org/10.14214/sf.a14057

English title: Establishment of farms and their profitability with particular reference to agriculture in Northern Finland.

Original keywords: Pohjois-Suomi; kannattavuus; metsäopetus; maatalous; jatkokoulutus; asutus; maatilat; maatalousmaa

English keywords: northern Finland; arable land; profitability; forest education; agriculture; settlement; farms

Abstract | View details | Full text in PDF | Author Info

The main part of arable land that could be cleared out into fields lies in Northern Finland, where climate conditions restricts agriculture. This presentation discusses conditions for profitable agriculture and settlement activities in the north.

Väisänen, E-mail: pv@mm.unknown

Category : Research article

article id 683, category Research article

Anders Karlsson, Arne Albrektson, Anders Forsgren, Lennart Svensson. (1998). An analysis of successful natural regeneration of downy and silver birch on abandoned farmland in Sweden. Silva Fennica vol. 32 no. 3 article id 683. https://doi.org/10.14214/sf.683

Keywords: Betula pendula; site preparation; Betula pubescens; afforestation; arable land; site conditions

Abstract | View details | Full text in PDF | Author Info

To improve our understanding of factors influencing the success of natural regeneration with downy birch (Betula pubescens Ehrh.) and silver birch (Betula pendula Roth) on abandoned farmlands, a survey was conducted to analyse the effects of site conditions and site preparation characteristics. The study was based on a sample plot inventory conducted in one northern and one southern district of Sweden, in which 29 successfully established, naturally regenerated stands, about to be cleaned or thinned, were assessed. Radical site preparation increased stand density and uniformity of established regeneration, and gave faster initial development, than establishment without site preparation on former leys or meadows. Large proportions of the total sample area were classified as moist, and soils consisting of sand–fine sand or peat were frequent. The frequency of birch stems was highest in mesic sites, and on soils consisting of sand, sand–fine sand or peat. Distances to seed-trees were generally shorter than 80 m, and downy birch was the dominant species in most stands.

Karlsson, Swedish University of Agricultural Sciences, Department of Silviculture, S-901 83 Umeå, Sweden E-mail: anders.karlsson@ssko.slu.se
Albrektson, Swedish University of Agricultural Sciences, Department of Silviculture, S-901 83 Umeå, Sweden E-mail: aa@nn.se
Forsgren, Swedish University of Agricultural Sciences, Department of Silviculture, S-901 83 Umeå, Sweden E-mail: af@nn.se
Svensson, Swedish University of Agricultural Sciences, Department of Silviculture, S-901 83 Umeå, Sweden E-mail: ls@nn.se

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