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Studies in sparsely forested zone in European Russia

South European RFES researchers continue their work to raise forest regeneration efficiency in dead or cut stands in protective forests of European Russia sparsely forested zone.

Regional dead forest studies cover several land categories: in fact dead stands due to various factors, burnt out areas – stands that lost its viability completely due to wildfires, burnt forest areas that have a part of viable standing timber as a rule subject to cut. In forest regeneration stock total share of  burnt out areas, cut areas and daed stands account for 45 and 47% respectively for the Rostovskaya and Volgogradskaya regions. Forest regeneration need in these lands categories is stipulated by protective erosion control functions of these woods. .

 

Increase of regional dead and cut forest regeneration efficiency is linked with development of environmental man-made forest regeneration technology and selection of tree and shrub species that fit the forest growing conditions. This year field surveys were conducted in forest districts of the Rostovskaya and Vollgogradskaya regions. It was found that forest fitness of lands is determined by a package of indicators such as characteristics of soils, vegetation cover, terrain, level of erosion process developments, level of soil entomological pest infestation, intensity of the factor that results in forest mortality (wildfire). At the moment similar forest regeneration technologies and a narrow range of tree species are applied in forest growing conditions that vary in trophicity and moisture. Available experimental plots in forest districts established with containerized planting stock at the moment haven’t showed significant variations in survival and growth. The picture shows condition of surveyed forest plantations that replaced dead forests.

Study findings serve as a background to develop proposals on forest regeneration design in regional dead and cut forests differentiated due to types of forest growing conditions and land categories.