Structure of beech stands in management systems with different intensity of wood stock using

Abstract

Investigation of the structure of forest massifs and taking into consideration the influence of forestry activities is as an informational base for optimization of intensity of using forest resources. The beech forest stands in different categories of protection is an investigation object. The aim of investigation is to estimate the tendencies of dependence between the regime of stock volume using and main biometrical and structural indexes of stands. The methods of forest enumeration cruising most adequate for receiving of effective primary data about structure of beech stands is considered. The sorted stands from areas with different regimes let to take into consideration the intensity of forest resources using. There were sorted the typical objects in beech stands of Carpathian Biosphere Reserve, National Nature Park “Skolivski Beskydy” and Slavsk State Forestry Enterprise. These beech stands are similar by wood stock and average height, but different by intensity of forest resources using. For these objects redistribution of trees counts and stock between stand levels are differencing. The relations between forest management regime and biometrical indexes of stand levels were determined. It was estimated the differentiations between average values and indexes of variation of diameters, height and stems volume. The analysis of trees count distribution by diameter, height and stock and estimation of merchantable of volume by tree levels is confirmed hypothesis about availability of relations between counts of high quality wood and intensity of volume stock using. The decreasing of intensity of volume stock using is correlating with increasing of complexity of stands. The sustainable using of forest resources for practice must to be agreed with time of stands adaptation to anthropogenic influence with volume of cutting stock in process of realization of forestry activivties system. The transformation of forest cutting fund management, which basing on using even-aged stands, to selective management, which basing on using uneven-aged stands, is complicated the age structure and assortmental diversity of volume stock. Increasing of assortmental diversity in selective management is explained by high cutting age, the peculiarities of growth and quality characteristics of beech wood. The results of investigation confirm the better adaptation of beech stands with different merchantable and assortment structure in other word with less intensity of human management in growth processes. It is reasonable to attempt to specific proportion of structural complexity of forest ecosystem and value of using volume stock. It is require the optimization of beech management form, correction of forest activity system.

Keywords

• diameter
• height
• volume
• commodity
• distribution
• tree counts
• stand level
• forest resources