The purpose of the paper was to study the stand dynamics and regeneration patterns in the virgin forest Rajhenavski Rog, and to carry out a terrestrial analysis of the gap. In order to do this, a North-American approach was used. The forest of Rajhenavski Rog measures 51,14 ha; the analysis was carried out in the south part of Rog (14,6 ha). The research was done in 2004, whereby 44 gaps and 322 gapmakers were found. The majority of the gaps are medium-sized, which mostly arose as a consequence of endogenous disturbances. The history ofthe gaps shows their repeated widening and continuous development. The analysis showed that most of the gaps have 3, 4 or 5 gapmakers, and that the virgin forest is in its beech spreading stage, as the percentage of fir between the gapmakers is rising. Regeneration is small-scale in cores, where the growing space is used by the beech. The stand dynamics of the gaps cause the occurrence of small-scale heterogeneous stands. The methodology used turned out adequately, its objectivity is higher than with the method of development phases. What is necessary is to adjust work in the field. The virgin forest renewal mode is stable, which is connected to the need for transfer of knowledge into management forests.
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