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Výskyt a hodnocení zdravotního stavu hlavních edifikátorů lesních porostů v oblasti Přírodní lesní oblasti č.16 Českomoravská vrchovina
Krajíčková, Dominika
In 2021, the representation of European beech (Fagus sylvatica) in the Czech Republic was 9.3 %, of maples 1.6 % and oaks 7.6 %. These values are slowly increasing, and the representation of European beech has increased by 3.3 % of the total area of arable land over the last five years (Zelená zpráva 2021). This work discusses the life manifestations of European beech (Fagus sylvatica), Norway maple (Acer platanoides), Sycamore maple (Acer pseudoplatanus) and Pedunculate oak (Quercus robur) in selected small protected areas in the Natural Forest Area No. 16 of the Czech-Moravian Highlands. The aim of this work is to evaluate the life manifestations of the above-mentioned tree species. Three small protected areas were selected, of which two localities are located in the 5th forest vegetation tier and one partially in the 5th and 4th forest vegetation tier, and endometrial measurements were performed here. The result was a comparison of the obtained data between individual sets of forest types and individual tree species on the set of forest types 5J. The diameter of the trunk and the height of the beech crown deployment were lower at 5K. The Norway maple reached smaller thicknesses at 5J compared to the other trees, on the contrary, the Sycamore maple and Pedunculate oak reached greater heights.
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Využití potenciálu přirozené a kombinované obnovy na Lesní správě Nasavrky (Lesy České republiky s.p.)
Zemanová, Anna
The diploma thesis dealt with the topic of the vegetation decline of the Norway spruce and its following regeneration in the Lichnice district, Nasavrky Forest Administration. From the results obtained from the forest economic records, it was found that the beginning of spruce decline was detected in 2018. The highest reported volume of random logging was reported in 2020 (46 405.92 m3). The largest reported clearing was also in 2020, at 53.69 hectares. The most common tree species in natural regeneration and artificial regeneration was Norway spruce, but its share is gradually decreasing year by year, to the benefit of a greater diversity of tree species on the range. Next, an experiment was conducted with the seedlings of the forest tree species that were collected and replanted as an underplanting in spruce stand 326A08. The mortality of the three study areas was evaluated here. The best results were achieved by white fir seedlings, where minimal mortality was found, on the other hand, the worst results were achieved by summer oak seedlings, where mortality was almost the majority.
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Růstové, produkční a výnosové parametry porostů dubu letního (Quercus robur L.) na Kojetínsku
Berčík, Vojtěch
The aim of this thesis is to evaluate the growth, production and yield parameters of oak stands on floodplain habitats in the region of Kojetín. On the forest management unit Foundation of Dr. Leopold Prečan were investigated in four stands with more than 50% representation of oak (Quercus robur L.) aged between 120 and 130 years. The numbers of crop oak in the stands ranged from 40 to 110 pcs∙ha-1. The basal area ranged from 40.8 to 45.8 m2∙ha-1 in the examined stands. High volume values of the medium strain were also recorded, ranging from 5.51 to 9.37 m3. The stock of oak stand was found in the range of 569 to 904 m3∙ha-1. The yield per hectare was set at 51,400 to 88,000 €∙ha-1. The main recommendation is the transition to multi layer oak management and increasing species diversity.
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Factors affecting oak spreading on post mining heaps
Janoušová, Ivana ; Frouz, Jan (advisor) ; Svoboda, Miroslav (referee)
The study was conducted on spoil heap Podkrušnohorská (50 ř 14'09 S, 12 ř 39'05 V) near Sokolov. Several factors that influence the establishment of oak were studied: the distance from the source of diaspors, type of habitat (succession vs alder reclamation), position of seedling on the wave and impact of animal grazing. Four alder restoration areas and three spontaneous succession areas have been mapped with GPS equipment, the occurence of mature oaks, which could serve as a source of acornsg was also mapped on the dump and in surroundings. Most seedlings (657) were found in the succession and only 98 in alder reclamation, and the occurence in succession was statistically significantly more frequent. The number of seedlings from sources diaspors decreased, the longest distance was over 1300 meters. For three habitats (spontaneous succession, alder reclamation, open space with grass vegetation (Calamagrostis epigeios)) were planted 12 oak seedlings in fence and 12 seedlings outsider of the fence. Annual growth rate and survival of oak were evaluated using two-way ANOVA. Results showed that the area has a significant effect on the growth of oaks. In alder reclamation and the open area had a high mortality of seedlings and small increase, the fence does not have significant influence on these areas....
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