Fletta eftir efnisorði "Birki"

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Aboveground woody biomass of natural birch woodland in Iceland – Comparison of two inventories 1987-1988 and 2005-2011

Snorrason, Arnór; Jónsson, Þorbergur Hjalti; Eggertsson, Ólafur (Agricultural University of Iceland, 2019)

The only native tree species in Iceland forming woodland is the mountain birch. Since human settlement in the 9th century AD, natural birch woodlands have decreased from around 28% to 1.5% of the terrestrial area. In this paper we estimated and compared ...
Provenance variability in establishment of native downy birch in a 14-year trial in southwest Iceland

Riege, Dennis A; Sigurgeirsson, Aðalsteinn (Agricultural University of Iceland, 2018)

Afforestation in southwest Iceland is hindered by eroded, infertile soils and salt deposition from strong oceanic winds. A trial plot of 25 provenances of native downy birch collected throughout Iceland was established in 1998 near Keflavik International ...
Single tree aboveground biomass models for native birch in Iceland

Jónsson, Þorbergur Hjalti; Snorrason, Arnór (Agricultural University of Iceland, 2018)

In Iceland, mountain birch dominates indigenous woodlands and scrub communities. For use in inventories of the natural birch population, we derived single parameter aboveground biomass functions from a stratified random sample encompassing the entire ...

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