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K. M. Bhat, Ari Ferm, Matti Kärkkäinen

On the properties of one-year shoots of Betula pubescens Ehrh. and Salix spp.

Bhat K.M., Ferm A., Kärkkäinen M. (1981). On the properties of one-year shoots of Betula pubescens Ehrh. and Salix spp. Silva Fennica vol. 15 no. 1 article id 5097. https://doi.org/10.14214/sf.a15038

Abstract

Downy birch (Betula pubescens Ehrh.) trees growing on a drained peatland were cut during dormancy. The properties of the one-year old shoots produced by the stumps were measured in the autumn after one growing season. The one-year old willow shoots (a mixture of Salix phylicifolia L., S. pentandra L. and S. caprea L.) were collected from an abandoned field.

The basic density of unbarked shoots was 443 kg/m3 for birch and 346 kg/m3 for willow. The basic density of the bark was much higher than that of the wood. The effect of shoot length on the properties was small with the exception of cellular proportions. The fibre percentage increased and vessel percentage decreased with increasing shoot length.

The PDF includes a summary in Finnish.

Keywords
bark; Betula pubescens; willows; Salix sp.; shoots; wood properties; basic density; fibers; vessels

Published in 1981

Available at https://doi.org/10.14214/sf.a15038 | Download PDF

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