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The results of the research of fir and Norway spruce mixed stands in the area of Đerekarski Omar Forest management unit situated in southwestern Serbia are presented in this paper. The stands which are the subject of this research belong to a complex of frigophilic coniferous forest types. The forests in the Đerekarski Omar Forest management unit are managed in accordance with the planning documents starting from 1961 when the first planning of these forests was performed. The results of this paper were based on the measurement of stationary sample plots established in homogeneous parts of the stands. In all sample plots fir is a dominant tree species. The values of volume and volume increment in studied stands are significantly above the average at the level of Serbia for fir and Norway spruce stands. The health condition of the stands is good, whereby a positive circumstance is the process of natural regeneration of these stands both on locations where there is a sparse canopy and in closed-canopy stands. On the other hand, number of trees, mean tree diameter and qualitative stand structure indicate the need for a detailed analysis of the planned works.

Fir and Norway spruce stands from the planning aspect in the area of Đerekarski Omar forest management unit in southwestern Serbia