Spatial distribution of forests and woodlandsin Iceland in accordance with the CORINE landcover classification

H÷fundur┌tgefandi┌tgßfußr┌tgßfusta­ur
Bj÷rn Traustason, Arnˇr SnorrasonAgricultural University of Iceland, Holar University College, Icelandic Rorest Research, Institute of Freshwater Fisheries, Institute for Experimental Pathology, University of Iceland, Soil Conservation Service of Iceland, The Farmers Association of Iceland.2008ReykjavÝk
Rit┴rgangurT÷lubla­Bls.
Icelandic Agricultural Sciences2139-49

IAS_ Spatial distribution of forests.pdf
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ABSTRACT

This paper presents a united geographical database for all known forest and woodland areas in Iceland, both natural and planted. This first edition of the database follows forest and woodland classifications used in the European CORINE land cover program. According to the database, the total area of forests and woodlands in Iceland was estimated as being 156,800 ha, divided into natural downy birch (Betula pubescens) woodland (115,400 ha) and forest plantations (41,400 ha). The natural birch forests were estimated at 23,600 ha and shrubland (<2 m) 91,800 ha. The area of plantation forests was estimated to be 11,300 ha and afforested areas which had not yet reached a height of two meters as 30,100 ha. Accordingly forests and woodlands in Iceland cover 1.5% of the total land surface and 3.6% of the land below 400 m. It was also estimated that 4,000 ha of the forest plantations overlap the natural birch woodlands, amounting to 3.5% of the total natural birch coverage. This is an estimate of the area where natural birch woodlands have been replaced with forest plantations. The database overestimated the area of forest plantations, which indicates that the original mapping of new plantations should be improved.

Keywords: afforestation, forest plantation, geographical database, GIS, natural birch woodlands, plantation forests

YFIRLIT
┌tbrei­sla rŠkta­s skˇglendis og nßtt˙rulegs birkilendis ß ═slandi samkvŠmt skilgreiningum CORINE landgreiningaverkefnisins
┴ Rannsˇknast÷­ SkˇgrŠktar rÝkisins ß Mˇgilsß hefur veri­ unni­ a­ ger­ landfrŠ­ilegs gagnagrunns sem inniheldur upplřsingar um skˇglendi landsins, bŠ­i birkilendi og rŠkta­ skˇglendi. Flokkun skˇga Ý gagnagrunninum
fylgir flokkun skˇga Ý Evrˇpska CORINE landgreiningarverkefninu. SamkvŠmt gagnagrunninum var heildarflatarmßl skˇglendis ß ═slandi ߊtla­ 156.800 ha, ■ar af var nßtt˙rulegur birkiskˇgur og kjarr 115.400 ha og rŠkta­ skˇglendi 41.400 ha. Nßtt˙rulegir birkiskˇgar og kjarr skiptust Ý 23.600 ha af skˇgi og 91.800 ha af kjarri. Heildarflatarmßl rŠkta­ra skˇga var ߊtla­ 11.300 ha en grˇ­ursetningar sem samkvŠmt ■essu mati h÷f­u ekki nß­ 2 m me­alhŠ­ ■÷ktu um ■refalt stŠrra svŠ­i e­a 30.100 ha. Hlutfall skˇglendis af yfirbor­i landsins var 1,5% og 3,6% af landi ne­an 400 m hŠ­ar yfir sjßvarmßli. Sta­frŠ­ilegur saman
bur­ur ß ■ekju rŠkta­ra skˇga og birkilenda leiddi Ý ljˇs a­ 4.000 ha sk÷ru­ust sem er 3,5% af heildar■ekju birkilendis ß ═slandi. Ůetta er mat ß hve vÝ­tŠk grˇ­ursetning hefur veri­ Ý birkilendum. Ljˇst er a­ stŠr­ skˇgrŠktarsvŠ­a er ofmetin Ý grunninum og bŠta ■arf til muna kortlagningu nřrra grˇ­ursetninga.