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Impacts of site effects on
losses of oriental spruce during Dendroctonus micans
(Kug.) outbreaks in Turkey
Hazan Alkan Akinci1*, Gonca Ece Ozcan2
and Mahmut Eroglu2
1Artvin
Coruh University, Faculty of Forestry, Department of
Forestry Engineering, 08000 Artvin, Turkey.
2Karadeniz
Technical University, Faculty of Forestry, Department of
Forestry Engineering, 61080, Trabzon, Turkey.
*Corresponding author.
E-mail:
alkan.hazan@gmail.com.
Tel.: +90 466 212 6949, +90 533 411 8491. Fax: +90
466 212 6951.
Accepted 11
May, 2009 |
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The study showed some site and stand factors affecting host
colonization, quantitative and qualitative losses in wood of
oriental spruce as a source of raw material during the
outbreak of Dendroctonus micans (Kug.). A total of
22.8 million m3 standing trees were damaged. In
11.43 million m3 standing trees infestations were
observed and 6.96 million m3 of trees were cut
which occupied 120,000 ha of D. micans infestation
areas. In pure spruce stands, 26.5% of the trees were
infested. There was no statistically significant difference
among the volume of crowns, crown base height and ages in
infested and healthy trees. There was a positive correlation
between stand density and number of D. micans, and
number of attacks inversely correlated with altitude.
Key
words:
Insect epidemic, site and stand factors, bark beetles,
volume of infested trees. |
