BIOMETRIC FEATURES OF OLD-GROWTH FOREST STANDS OF SKOLE BESKIDS (UKRAINE)
Journal Title: Zarządzanie ochroną przyrody w lasach - Year 2014, Vol 0, Issue 1
Abstract
Biometric studies carried out by the example of some of the remaining fragments of old-growth spruce-fir-beech forest stands. They grow at an altitude of 600-1100 m above sea level in the humid fairly fertile brown soils (Eutric Cambisols). These stands form trees of different ages, of different heights and diameters of trunks. As a rule, they show fast growth rate of tree trunks of all species of thickness, height and volume. It corresponds to indicators of parameters I-Ic class's forest capacity with consistent. Height of 32 meters and more fir trees reach up to the age of 170, spruce up to 110, and beeches up to 200. The actual value of form factor of tree trunks of different species in height depends on the degree of trunks were 7% less from those listed in the standard tables.At the same time resources showed significantly higher average value of total basal area of trunks of tree stands, approximately 60 m2•ha-1, of volume nearly - 750–1000 m3·ha-1 and the number at the level of 700–800 trees·ha-1. These indicators are slightly higher than presented in the growth tables of Carpathians beech stands of I-Ib class forest stand capacity at the age of 120.Distribution of the average unit value of volume of examined stands on species components shows the dominance of beech in a whol, nearly 70%. Significant participation of trunk volume of fir and spruce: 15% and 13%, correspondingly. In studies of old-growth stands of most volume (52 - 65%) form the largest trees stages height from 32 to 48 m and stages thickness of 60-112 cm. However, their number is relatively small, only 8 - 12% of the total, or 56-85 trees•ha-1.Old growth unvented spruce-fir-beech stands compared to mono-dominant coeval have important environmental benefits. It is prolonged high biological productivity of the stand, its multilevel, the dynamics of self-development and, therefore, biological stability.
Authors and Affiliations
Jurij Chernevyy
Keywords
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