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Fuel load, humus consumption and humus moisture dynamics in Central European Scots pine stands
- Source :
- International Journal of Wildland Fire 14 (2005) 2, International Journal of Wildland Fire, 14(2), 153-159
- Publication Year :
- 2005
-
Abstract
- Samples of Scots pine (Pinus sylvestris L.) humus were burned under different moisture and fuel load scenarios to model humus consumption. For moisture levels below 120% on a dry mass basis, a parabolic increase of humus remaining with increasing moisture content was observed while, for higher moisture levels up to 300%, humus was reduced by a constant 10–15% on a dry mass basis. Both fuel load and humus moisture had a highly significant influence on humus consumption. Humus gross calorific value of Scots pine (19 509 KJ kg–1) is lower than that of other pine species. We found a desorption time-lag for humus moisture of 85 h in this study. Field data show a steady accumulation of humus in Central European Scots pine stands (up to 45 t ha–1 in 120-year-old stands). Amounts of litter remain constant over the different stand ages (~15 t ha–1). This study provides important information to predict humus consumption in Scots pine stands. The results can be used to build a fire severity and post-fire succession model for Scots pine stands in Central Europe.
- Subjects :
- severity
Soil science
water-content
soil
forest
Dry weight
plot-scale
Bosecologie en Bosbeheer
spatial-patterns
duff
sylvestris
Water content
Ecology
biology
Moisture
douglas-fir stand
Scots pine
Forestry
Throughfall
biology.organism_classification
PE&RC
Humus
Forest Ecology and Forest Management
Boreal
Agronomy
Litter
Environmental science
throughfall
Subjects
Details
- Language :
- English
- ISSN :
- 10498001
- Volume :
- 14
- Issue :
- 2
- Database :
- OpenAIRE
- Journal :
- International Journal of Wildland Fire
- Accession number :
- edsair.doi.dedup.....35dac66f6f0092b4efc8b2ff87d3a5b0