Description of articlePred a postdisturbančný vývoj smrekového prírodného lesa v Západných Tatrách
[Pre- and post-disturbance development of high mountain spruce forests in the Western Tatras] 223-231
|Name of article:||Pred a postdisturbančný vývoj smrekového prírodného lesa v Západných Tatrách|
|Author:||Ján Pittner, Denisa Sedmáková, Zuzana Parobeková, Peter Jaloviar, Stanislav Kucbel, Jaroslav Vencurik, Milan Saniga|
The research deals with the description of basic characteristics of stand structure and regeneration processes according to affecting factors. Characteristics are described before and after large-scale bark beetle outbreak in the high mountain spruce forest of the National Nature Reserve (NNR) Kotlov žľab. In 1968, a series of three permanent research plots (PRP) with the size of 0.50 ha was established at an altitude of 1400–1500 m. Measurements of the stand structure and regeneration processes were carried out in 1968, 1978, 1988, 1998 and 2019. Before the largescale disturbance, the high mountain spruce forest was little differentiated and was dominated by single tree layer with stagnant regeneration. The development in PRP 3, which had initially the lowest number of trees, the highest variability of tree diameters and was located at the lowest altitude, responded best to the effect of disturbance. However, taking into account the forest development after disturbance, we can state that in 2019 there was a sufficient amount of advanced spruce regeneration in all PRPs, which will ensure that development does not take place through early successional stages. In the initial stage of the forest development, rowan could be expected to fill openings among remaining spruce trees.