Forest typological diversity of Volodymyrivske environmental research department of NNP “Slobozhanskiy”

Abstract

The results of forest typological diversity studies in Volodymyrivske environmental research department of National Natural Park “Slobozhansky” are presented. 6 profiles with a total length of 24.8 km were laid, the description was made for 40 observation plots. The wide-scaled mapping of site “Lisove ozero” with fragments of typical park’s forest and swamp ecosystems was carried out. For conducting field studies and primary data processing software technological complex Field-Map was used. By the profiles the following edatops (forest site conditions) were identified on sites: A₂ (poor fresh condition), B₂ (relatively poor fresh), C₂ (relatively rich fresh), C₃ (relatively rich moist) and D₄ (rich wet condition). Fragments of poor dry (A₁), relatively poor wet (B₄), relatively rich wet and swamp (C_4-5) and rich fresh condition (D₂) were found. The most spread forest type is oak-pine stands at relatively poor fresh condition (B₂-oP). Gently undulating terrain with areas of hills and marshy valleys causes a significant proportion of the area of transitional forest types. In general, from the north (from river Merla) to the south there is a gradual increase in the richness of soil conditions. The complex of indicators of forest stands in the typological profiles and monitoring sites was assessed, quantitative and qualitative indicators of dead wood structure were evaluated, natural regeneration patterns of development were determined. In the most part of monitoring plots the total stock of dead wood does not exceed 8% of the growing stock. In the studied area there is a vital undergrowth of different ages in all forest types, but it is located predominantly in groups and its number is not enough for full regeneration of native forest stands.