Difference between revisions of "Biomass functions"
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(Created page with "[Category:Model] <!-- ==About biomass calculations in Heureka== In Heureka the amount of biomass is caclulated with different functions depending on tree species, tree age and...") |
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==About biomass calculations in Heureka== | ==About biomass calculations in Heureka== | ||
In Heureka the amount of biomass is caclulated with different functions depending on tree species, tree age and tree fraction (what part of the tree). | In Heureka the amount of biomass is caclulated with different functions depending on tree species, tree age and tree fraction (what part of the tree). | ||
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==Functions used== | ==Functions used== | ||
===Established stands, above ground=== | ===Established stands, above ground=== | ||
| − | Fir established stands (i.e. mean heigth ≥ 7m) | + | Fir established stands (i.e. mean heigth ≥ 7m), you can choose between Petersson 1999<ref name = "Petersson1999">{{:Bibliografi:Petersson1999}}</ref> |
===Young stands, above ground=== | ===Young stands, above ground=== | ||
| + | Claesson et al 2001<ref name = "ClaessonEtAl2001">{{:Bibliografi:ClaessonEtAl2001}}</ref> | ||
===Stumps and roots ≥ 2 mm === | ===Stumps and roots ≥ 2 mm === | ||
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==Functions used when selected Marklund for above-ground biomass in established stands== | ==Functions used when selected Marklund for above-ground biomass in established stands== | ||
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| + | ==Correction for other species than pine, spruce or birch== | ||
| + | The functions desribed above are available for pine, spruce and birch. For other broad-leaves than birch, the birhc functions are used but then calibrated using conversion factors between the subject tree species "normal" wood density and the wood density for birch according to ([http://sv.wikipedia.org/wiki/Tr%C3%A4slag]). | ||
==References== | ==References== | ||
| − | + | <references /> | |
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Revision as of 10:57, 14 December 2015
About biomass calculations in Heureka
In Heureka the amount of biomass is caclulated with different functions depending on tree species, tree age and tree fraction (what part of the tree).
Functions used
Established stands, above ground
Fir established stands (i.e. mean heigth ≥ 7m), you can choose between Petersson 1999[1]
Young stands, above ground
Claesson et al 2001[2]
Stumps and roots ≥ 2 mm
Functions used when selected Marklund for above-ground biomass in established stands
Correction for other species than pine, spruce or birch
The functions desribed above are available for pine, spruce and birch. For other broad-leaves than birch, the birhc functions are used but then calibrated using conversion factors between the subject tree species "normal" wood density and the wood density for birch according to ([1]).
References
- ↑ Petersson, Hans (1999). Biomassafunktioner för trädfaktorer av tall, gran och björk i Sverige. Umeå: Fakulteten för skogsvetenskap > Institutionen för skoglig resurshushållning, Sveriges lantbruksuniversitet. Arbetsrapport / Sveriges lantbruksuniversitet, Institutionen för skoglig resurshushållning och geomatik ; 59
- ↑ Claesson, S., Sahlén, K. & Lundmark, T. 2001. Functions for biomass estimation of young Pinus sylvestris , Picea abies and Betula spp. from stands in northern Sweden with high stand densities. Scandinavian Journal of Forest Research 16: 138-146.