The occurrence of heart rot on Abies nordmanniana subsp. bornmülleriana Mattf. trees in relation to altitude (original) (raw)

Kastamonu University Journal of Forestry Faculty, 2012

Abstract

Fir is the taxon subjected to the selection systems in Turkish forestry. In selection forests, target diameter is the main criterion for planning and management. In this study the aim is to determine the formation and level of the heart rot and target diameter depending on aspect and altitude for Abies nordmanniana subsp. bornmülleriana Mattf. For this purpose, the fir trees with maximum diameters were cut and the situation of heart rot at various altitude levels (900-1,200 m, 1,200-1,500 m, and 1,500-1,800 m) and aspects was determined. The formation of heart rot starts at low altitudes and this defect was found nearly on all fir trees of target diameter of 60 cm which is commonly used in practical Turkish forestry. Target diameter of 60 cm was considered as usable at the altitude of 1,200 m and even higher, at 1,500 m and even more, the usable target diameter is more than 60 cm, as heart rot was not found in the sample trees with target diameters about 70-80 cm. In addition to thi...

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