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Articles by Lennart Svensson
Category : Research article
article id 683,
category
Research article
(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 |
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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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