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NIBIOs employees contribute to several hundred scientific articles and research reports every year. You can browse or search in our collection which contains references and links to these publications as well as other research and dissemination activities. The collection is continously updated with new and historical material.

1999

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Abstract

The biomass in four dominant field layer species was followed during six years after a fire in a pine forest in Sveio, western Norway. The overall biomass in the different species was estimated from the biomass per shoot, the shoot densities in pure stands of the investigated species and the percentage cover at medium burned sites. Corresponding measurements were made at control plots outside the burned area.The method was checked by comparing with ordinary area based sampling technique, and a general good agreement was found. The Vaccinium species and calluna were the dominant species at the control plot.Three years after the fire the total overall biomass at the burned site was already higher than at the control site, due to improved light and nutrient conditions. A strong increase in the overall biomass of Calluna vulgaris and deschampsia flexuosa was found in burned areas, and a slower regrowth of Vaccinium myrtillus and V. vitis-idaea.However, in the future the biomass is expected to decrease, and the species composition will probably change as nutrients are leached out of the soil and pine and deciduous trees (Betula pubescens and Salix caprea) are regerating from seeds and roots, leading to increased competition in the field and shrub layer.