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Leo Heikurainen (email)

Rämemänniköiden uudistamisesta paljaaksihakkausta käyttäen

Heikurainen L. (1954). Rämemänniköiden uudistamisesta paljaaksihakkausta käyttäen. Silva Fennica vol. 61 no. 27 article id 7439. https://doi.org/10.14214/aff.7439

English title: Regeneration of Scots pine stands of pine swamps through clear cutting

Abstract

Pine swamps are easily regenerated by natural regeneration of Scots pine (Pinus sylvestris L.). Usually seeding felling is used, but also strip system or clear cutting and regeneration along stand edge has been suggested. This article discusses the regeneration by clear cutting and sparing the existing undergrowth. The article focuses on pine swamps to be drained and the ones in natural state.

Pine swamps in natural state usually have plenty of trees of smaller diameter classes, that can be trusted to form the future tree generation after the felling. This shortens the rotation by 20-30 years. The undergrowth has been shown to recover quickly. The method suits for regeneration of drained peatlands but could fit also for regeneration of pine swamps in natural state.

The seedlings in the pine swamps are mainly 1-5 years old, and the stock is changing. It seems that larger trees produce a wider selection of age groups, but the seedlings survive longer under smaller mother trees. Part of the younger generations of seedlings seem to be destroyed when the peatland is drained. Further studies are needed to investigate how the draining and felling are to be performed to spare the young seedlings.

The Acta Forestalia Fennica issue 61 was published in honour of professor Eino Saari’s 60th birthday.

The PDF includes a summary in German.

Original keywords
männikkö; luontainen uudistuminen; mänty; suot; alikasvos; uudistaminen; räme; turvekangas; avohakkuu

English keywords
Pinus sylvestris; regeneration; natural regeneration; drained peatlands; Scots pine; peatlands; seedlings; fellings; undergrowth; pine swamps; clear cutting

Published in 1954

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Available at https://doi.org/10.14214/aff.7439 | Download PDF

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