Ársrit Skógræktarfélags Íslands - 15.12.1987, Blaðsíða 32

(19) Jón Gunnar Ottósson (1985). Sitkalús (Elat-
obium abietinum Walker). Ársrit Skógræktar-
félags íslands. Bls. 8—16.
(20) Jón Gunnar Ottósson (1987). Rannsókna-
stöð Skógræktar ríkisins. Munnieg heimild.
(21) Jón Hákon Bjarnason, Sigvaldi Ásgeirsson
(1982). Athugun á löndum höfuðborgarsvæðis-
ins með tilliti til trjáræktar og skipting þeirra
eftir gæðum. Skipulagsstofa höfuðborgar-
svæðisins í samvinnu við Skógrækt ríkisins.
RIT VIII 13 bls.
(22) T. H. Jonsson (1984). The Sitka spruce of
Skaftafell National Park. A Study of Stem
Growth. 28 bls.
(23) T. H. Jonsson (1985). Distribution of Root
Biomass in a Stand of Pinus contorta Dougl.
Growing on Stratified Palagonite Loess Soil in
N. E. Iceland. University of Aberdeen. 109
bls.
(24) Markús Á. Einarsson (1976). Veðurfar á
íslandi. Iðunn Reykjavík.
(25) R. M. Newnham (1986). A Classification of
Climate by Principal Component Analysis and
its Relationship to Tree Species Distribution.
Forest Science 14(3).
(26) J. A. Petty, C. Swain (1985). Factors
Influencing Stem Breakage of Conifers in High
Winds. Forestry 58(1).
SUMMARY
SITKA SPRUCE IN S. E. ICELAND
Sitka spruce (Picea sitchensis (Bong.) Carr) is
one of the most promising forest trees in Iceland.
This species is growing reasonably well in S.E.
Iceland and better than elsewhere in the country.
Maximum mean annual volume increment is 6 to
12 mVha/year. And 8 to 10 mYha/year is common
on the more sheltered sites. Spring frosts and the
green spruce aphid have caused heavy losses in
(27) M. S. Philip (1983). Measuring Trees and
Forests. A Textbook Written for Students in
Africa. The Division of Forestry University of
Dar Es Salaam.
(28) Sigurður Blöndal (1981). Kvæmi innan
trjátegunda. Ársrit Skógræktarfélags íslands.
Bls. 17—27.
(29) W. Tranquillini (1979). Physiological Eco-
logy of the Alpine Timberline. Tree Existence
at High Altitudes with Special Reference to
the European Alps. Ecological Studies 31.
Springer-Veriag. Berlin, Heidelberg, New
York.
(30) Pórarinn Benedikz (1982). Rannsóknastöð
Skógræktar ríkisins: Útdráttur úr skýrslu fyrir
árið 1980. Ársrit Skógræktarfélags íslands.
Bls. 82—86.
(31) Þórarinn Benedikz (1983). Útdráttur úr
skýrslu Rannsóknastöðvar Skógræktar ríkisins
fyrir árið 1981. Ársrit Skógræktarfélags
íslands. Bls. 74—77.
(32) Þórarinn Benedikz (1985). Úttekt á vexti
barrtrjáa í Skorradal. 15 bls.
(33) Þórarinn Benedikz (1987). Rannsóknastöð
Skógræktar ríkisins. Munnieg heimild.
plantations. Wind is also a problem. Provenances
from A. Alaska are likely to do better in the area
than the present Kenai Peninsula and Prince
Wiliiam Sound provenances. Change of prove-
nances and silviculture taking wind and the green
spruce aphid into account is likeiy to enable
development of commercial forestry based on
sitka spruce in this area.
30
ÁRSRIT SKÓGRÆKTARFÉLAGS ÍSLANDS 1987