In this thesis was observed an influence of silvicultural treatment on the structure of young birch stand. On location Stará Ves nad Ondřejnicí was chosen a 10 years old birch stand and on location Hlubočec a 15 years old one. The stands originated spontaneously from natural regeneration on clearing. On both locations were researched two stands in 2015, 2016 and 2017. Within the stands, control variants and the thinning ones were established in 2015. In the case of variants focused on a thinning was executed a repeated intervention in 2016 and in the same time a pruning of a part of individuals in the spring of 2017. On all variants all the woody plants were recorded with a height above 2 metres, which were measured a diameter at breast height (cm) during the years 2015–2017. On intervention variants at marked trees (samplers) were measured a total tree height (cm), an occurrence of a dry treetop (cm) and an occurrence of a live treetop (cm) as well. At the beginning and at the end of 2017 was also measured a treetop projection (cm) at all individuals on the area. Non-interventional stands reported a high number of individuals with a low diameter at breast height in both cases, which represented a significantly low resistence of these stands. This led to a reduction in stability, especially against the snow. Despite a major reduction in the number of individuals in the intervention stands, the proportion of trees was still higher compared to the mentioned literature. In response to this intervention was recorded an increased growth or base. The differences here did not manifest themselves as statistically significant during the first year after the intervention. Based on the results, which showed especially significant differences in the density of the cultivated stand with the non-interventional one can be recommended a very powerful intervention towards the release of the stand and the increase of stability.
| Identifer | oai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:428042 |
| Date | January 2018 |
| Creators | Konečný, Jan |
| Source Sets | Czech ETDs |
| Language | Czech |
| Detected Language | English |
| Type | info:eu-repo/semantics/masterThesis |
| Rights | info:eu-repo/semantics/restrictedAccess |
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