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Harri Vasander, Tapio Lindholm

Tulen voimakkuus ja maanpinnan lämpötila kulotuksen aikana

Vasander H., Lindholm T. (1985). Tulen voimakkuus ja maanpinnan lämpötila kulotuksen aikana. Silva Fennica vol. 19 no. 1 article id 5227. https://doi.org/10.14214/sf.a15406

English title: Fire intensities and surface temperatures during prescribed burning.

Abstract

Surface temperature during two prescribed burnings were measured in 1983 in Evo, Southern Finland. Surface temperatures in relation to the amount of slash burned, energy released during the fires, and the fire intensities were studied. The fire intensity was also measured during a third burn. The Lake Nimetön site was burned int the end of May. Due to the uneven distribution of slash, colonization by Calamagrostis arundinacea and the spring moisture, the burning was very uneven. Surface temperatures varied between 410–809°C and the intensity of fire was low (range 0–900 kW/m).

The fire intensity on the other sites burned in May was also low (880 kW/m). During the burn in August the surface temperatures varied between 701–869°C and the intensity of fire was moderate (1,170 kW/m). Slash was burned more evenly and more thoroughly due to the dryness of the site and slash and the fact that grasses and other herbs were not abundant.

The PDF includes a summary in Finnish.

Keywords
controlled burning; prescribed burning; regeneration; surface temperatures; slash; logging waste; fire intensity

Published in 1985

Available at https://doi.org/10.14214/sf.a15406 | Download PDF

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