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Odrůstaní výsadeb jedle bělokoré (Abies alba Mill.) pod mladými březovými porosty na severní Moravě
Dolenský, Šimon
The aim of this thesis is to rate the growth of firs in various vegetation situations, while using a preparatory birch one. Two research areas representing two different locations in northern Moravia were chosen, with options as follows: TVP Březiny (LT 3H5) embankment cuts in birch forests, clearcut, with intervention, without intervention; TVP Hlubočec (LT 4S3) - with intervention, embankment cuts in birch forests. Firs were planted in autumn 2015. The height of their above-ground part, the growth of new branches, root neck thickness, tree crown area and vitality were measured in 2018 and 2019. The best growth was shown in the firs using the option of embankment cuts in birch forests. On the other side, the worst growth was shown in the firs using the option of a control non-intervention variant. Both negative and positive aspects of each variant were assessed in this thesis.
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Rekonstrukce přípravných porostů břízy bělokoré podsadbami
Souchová, Jana
The aim of the Dissertation Thesis was to assess the oak and fir tree seedling growth rate in the Deštná-Horákova Lhota, Bystřice nad Pernštejnem and Opatovec - Kukle areas. Measurements took place on 22 areas with various intensity release preliminary growth. The following parameters were measured: current height of the above-ground tree plant parts and its height in previous year, yearly growth rate, length of sideways growing tree parts, width of tree crown, height of dual and triple tree trunk parts, deflection of trunk from its vertical axis, width and length of leaf or needle, root neck diameter, multiple tree trunk, straightness of the trunk, multiple tree top, vitality of the plant, damages through animal bites or horn scrapings. It can be concluded that each variation results in different growth rate of the undergrowth. It has been found that the best growth rate under birch tree plants was achieved in a narrow strip of bare of the tree plant beds. The worst growth rate, on the other hand, was observed in the 0.5 tree trunk variation.
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Zakládání a obnova lesa podsadbami pod přípravné porosty břízy bělokoré a olše šedé
Brach, Vlastimil
The aim of this bachelor thesis is to compare and evaluate saplings of the European beech (Fagus sylvatica L.) in underplantings under birch and grey alder preparative plant stands in different conditions in the LS LČR Šternberk district. It was evaluated seven variants under birch preparative plant stand and nine variants under grey alder preparative plant stand. A different way of intervention on every variant was used. There were measured and evaluated 16 parameters (e.g. actual height of seedlings, last years height of seedlings, annual increment, mortality). It was found out that every variant has another impact on underplanted saplings. It was found out that for birch plant stand are the best conditions for European beech saplings in variants with the 0.5 stocking. There are the best conditions for grey alder plant stand if the density of a stand was reduced to 50 %. Worse conditions for underplantings were identified on clear-cutting places.
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Vliv intenzity výchovného zásahu na formování březového porostu a růst podsadby jedle bělokoré
Pišlová, Tereza
The aim of the thesis was to evaluate the formation of preparing birch stand and the growth of silver birch underplanting. The measurements were realized in 2015 – 2018 in TVP Skrchov. The area was divided into 4 variants; no heavy thinning, intensity heavy thinning 50 %, 30 % and silver fir gap. In the birch stand there was evaluated breast-height diameter and its growth, basal area and by Shädelin tree classification the target trees were chosen. The silver fir underplanting was measured for mortality, root colar diameter, height, diameter growth, height increment, health condition, and the size of crown projection. The best value had the birch stand with thinning intensity of 50 %. In this stand there was reaction of release after heavy thinning. On the other hand the lowest value of production had the birch area without heavy thinning. Nevertheless, the value of slenderness ratio was high (110 – 120) and the share of green crown was low (33 – 35 %) for all variants. It shows worse vitality and stability of the birch stand and it indicates the late heavy thinning. The silver fir grew best in the gap where it had the highest diameter growth, height increment, healty condition and lowest mortality. The best of underplantings was the silver fir grown under the birch stand without heavy thinning. The worst results had the silver fir with 50 % of heavy thinning intesity.
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Založení přípravného porostu na kalamitní holině plocha Rakovec II (ŠLP Křtiny)
Sekanina, Jan
The aim of this thesis was to evaluate the fruitfulness of the establishment of the preparative stand and to propose following suggestions for the forest restoration at the area Rakovec II (TFE). For this purpose has been at this research area analyzed the state and the development of the birch (Betula pendula Roth.) restoration by sowing and natural regeneration of all tree species at the clear-cut area, which was formed after the windthrow disaster in predominantly non-native spruce forest stand. On the larger part of the area (0.25 ha) it has been performed full-areal sowing of birch and remaining surface (0.125 ha) was left as a non-intervention area for control checking. Inventory control survey conducted on 100 blocks for the variation of sowing and on 50 blocks for control variant. There was additional inquiry to analyze the influence of substrate and soil preparation to initiation recovery survival. Monitoring took its course at the research area from spring 2013 to the autumn of the year 2014. While at the sowing area was the abundance of birch seedlings at the end of the experiment 261 pieces, on the control stand, it was only 6 pieces. From a total of 267 pieces of birch seedlings, the utter majority of them occurred on mineral soils -- 72 %. To evaluate the impact of subsequent land preparation for the restoration of birches, another monitoring is still needed. Limit of success of the preparative stand establishment by sowing the birch are suitable soil conditions. Soil preparation is also recommend, as a prerequisite for a successful restoration of birch trees at the area.
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