Studies on prescribed burning of drained peatlands

Yli-Vakkuri, Paavo

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Paavo Yli-Vakkuri

Tutkimuksia ojitettujen turvemaiden kulotuksesta

Yli-Vakkuri P. (1958). Tutkimuksia ojitettujen turvemaiden kulotuksesta. Acta Forestalia Fennica vol. 67 no. 4 article id 7478. https://doi.org/10.14214/aff.7478

English title: Studies on prescribed burning of drained peatlands

Abstract

Prescribed burning has been used to treat the mineral soil sites, but the method has been little used in drained peatlands. The course and methods of prescribed burning in drained peatlands, and the effect of burning on sprouting of broadleaved trees, growth of ground vegetation and regeneration of Scots pine (Pinus sylvestris L.) by sowing was studied in drained pine bogs in Southern Finland. The top layer of the peat was mostly Sphagnum peat. The material included a prescribed burned 12 ha drained peatland area in Tuomarniemi district, in addition to which ten previously burned areas were investigated.

The burning had succeeded mostly well, but also unsuccessfully burned sites were observed. Estinguishing of the fire was easy, and no peat fires occurred. The fire burned only the logging residue, ground vegetation and the dry top layer of the peat. The roots of brushwood and grasses survived in the peat that insulated the top layer from the heat. For instance, the abundance of cloudberry (Rubus chamaemorus L.) increased after the fire. Similarly, burning did not affect sprouting of the stumps of downy birch (Betula pubescens Ehrh.). It cannot thus be used as a method to restrict the growth of coppice in regenerated areas. The seeds of Scots pine germinated well on the burned surface. 46% of the seeds developed to seedlings on sphagnum-shrub vegetation and 16% in feathermoss-shrub vegetation.

The PDF includes a summary in German.

Original keywords
mänty; luontainen uudistaminen; kulotus; suot; pintakasvillisuus; turvemaat; uudistaminen; turvekankaat; vesaikko

English keywords
Pinus sylvestris; regeneration; natural regeneration; drained peatlands; Scots pine; coppice; peatlands; ground vegetation; prescribed burning

Published in 1958

Available at https://doi.org/10.14214/aff.7478 | Download PDF

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