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Historical development of stands in the first zone of the National Park Šumava close to the village Prášily
Strnad, Jiří ; Šálek, Lubomír (advisor) ; Zahradník, Daniel (referee)
The dissertation, The History of Evolution of the Forests of the Category I Protected Area in the National Park Šumava- environs of the municipality of Prášily, firstly focuses on the research and analysis of extant historical documents and other archival materials. In particular it analyses the historical maps of the former Velkostatek Prášily-Dlouhá Ves of the Schwarzenbergs family that show the evolution of the forests and their management between 1860 and 1930.
Secondly, the dissertation focuses on the assessment of the current state of the forests and the way in which they are managed by the Správa NP Šumava and in particular on the positioning of the category I protected areas in order to protect the remnants of the native woodland.
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Potential logging in stands outside the forest within Czech Republic
Ondřich, Libor ; Štícha, Václav (advisor) ; Šálek, Lubomír (referee)
This thesis deals with the potential of timber from forest stands outside the territory of the Czech Republic and the assessment itself non-forest areas. The work is divided into two parts. The first part includes research on non-forest woody vegetation, especially in the Czech Republic, the methodology for mapping the authors of these non-forest areas, and the results to which occurred at the end of this work. The second part contains a separate case study with its own mapping in selected areas of the Central Region. In conclusion then mentioned the part dealing with logging from areas outside forests, including data from selected companies and at the end of thesis of the mining potential of these areas.
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Case study of forest management of mature beech stands related to utilization of natural regeneration on acid soils of 5th vegetation belt
Heclová, Petra ; Šálek, Lubomír (advisor) ; Dragoun, Lukáš (referee)
The bachelor thesis shows possibility of beech stand regeneration using three-phase shelterwood system within the revision of the Forest management plan (FMP) on the forest estate Jezeří.
Beech occurs in investigated stands with admixed birch. For the thesis two over-matured beech stands with various beech compositions in their parts were selected. In both stands 452 A 17 and 452 C 17 sample plots were placed each one with the area of 0,05 ha. The basic mensurational data were measured such as diameter in breast height, tree height and height of the first green branch (the lowest point of the crown). Every tree was ranged to the qualitative class and the status of natural advance was determined. Based of data evaluation it is clear that the both stands passed through similar development and their tending was strongly neglected. From crown point of view it is noticeable that the crown variability is very high and there is no relation between crown length and other mensurational characteristics. The main dominance of quality class B was displayed in the both stands. The stand characteristics from the FMP are lower with comparison to the reality. Although the density of the both stands is highly over optimal there is relation between density and the number of new seedlings from natural advance. Results from data evaluation are used in suggestion of regeneration of these stands.
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Forest management of alder stands on the ecological series L – riparian sites
Bačovský, Jan ; Šálek, Lubomír (advisor) ; Martinisko, Jakub (referee)
The diploma thesis was focused to forest management of alder stands on the groups of forest habitat types 3L and 1L aiming to enhancement of quality production. The stands are located in the forest ranges Býchory,Ledce and Nymburk.
On those localities alder is only marginal tree species even though according to the rule No. 84/96 Sb. about forest management planning alder belongs to the important soil improving and reinforcing tree species in several management sets of stands. While the stocking on the forest habita types 3L is insufficient in many cases the stocking on the forest habitat types 1L is optimal. . The stand 204 which is 41 years old, has stock volume 182,65 m3/ha, the stand 308 at the age of 39 years has stock volume 129,28 m3/ha. The stand 616 at the age of 72 years has stock volume 220,67 m3/ha and the stand 617 at the age of 72 years has stock volume 212,12 m3/ha.
The tending proposal presents the alder silviculture as the integral part of forest ecosystems in the given landscape for the future management. 511E7 vegetation at the age of 76 years old has a of 167,13 m3/ha. Vegetation 511J8 at age 90 has a vocabulary of 203,33 m3/ha. Vegetation 512D5 at the age of 58 years old has a vocabulary of 166,75 m3/ha. The tending proposal is aimed to improvement of the quality status of stands and to maintenance the alder in forest ranges as an integral part of the landscape.
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Evaluation of changes in production and tree species composition of a stand arisen from line planting
Veinerová, Kristina ; Šálek, Lubomír (advisor) ; Krykorková, Jitka (referee)
The bachelor thesis deals with evaluation of one mature beech stand in the Natural Forest Area Středomoravské Karpaty. This stand was arisen from line planting and its initial tree species composition was spruce 50%, beech 25%, oak 13% and larch 12%. During the development mainly conifers and oak were removed; the present tree species composition is beech 96%, larch 3% and spruce only 1%. The present stock volume reaches 796 m3/ha. The stand was surveyed during the development and results were published in individual periods. Comparing the results we can make a statement that beech on rich sites in Carpathians reaches extraordinal dimensions and using appropriate tending extraordinal quality as well.
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Impact of adjacent trees to mensurational characteristics of yew
Šlemr, Jakub ; Šálek, Lubomír (advisor) ; Stolariková, Radka (referee)
In December 2015 the next part of the research population yew (Taxus baccata) took place in NPR Chlumská stráň. The specimens exceeding 4 meters at height at which the sex is possible to determine were selected from the total population. And from this group 50 individuals were randomly selected and the following characteristics were measured height, breast-height diameter, girth, height deployment of the first green branches, distances ends of the branches from the trunk, a distance of 5 nearest trees, their height and azimuth, also was intended sexes and crown shape. Volume and height of the crown were calculated.
The aim is to determine how the surrounding tree species affect mensurational characteristics of the yew not only basic characteristics such as thickness at breast height and tree height, crown but also the crown characteristics and health status.
The average diameter of the examined yews is 41,53 cm and a height of 13,66 m. The yew crowns were investigated in detail. The most important and interesting data are the yew crown projection and distances of competing species. The average crown projection yew is 79,25 square meters, the average height of the crown is 12,26 m, the surface of the crown is 2531,46 square meters, the average crown width is 10,36 m and the average volume of 429,80 cubic meters. 95 % of all surveyed yew has asymmetric crown, making it likely the high impact of competitive species.
The most abundand species of competitors is hornbeam (Carpinus betulus) with a total of 60 individuals, an average height of 13,6 meters and an average distance of 5,79 meters, followed by lime(Tilia cordata) and manna ash (Fraxinus ornus).
Crown yew are deflected to the north, northwest and west direction because of terrain conditions and competing trees.
Research in the future should be also focused to the marginal tree species and for yew it should be very appropriate to establish permanent sample plots and to use collected information for return of yew to our forests.
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Production potential of tonewood in a selected locality in National Park Šumava
Švelch, David ; Šálek, Lubomír (advisor) ; Zahradník, Daniel (referee)
The aim of the bachelor thesis is finding out of potential production of tonewood of the Norway spruce (Picea abies) on appropriate sites in the National Park Šumava. The research was carried out by dendrochronological core samples and their analyses, Results show that share of tonewood exceeds 30% on appropriate sites within fight tending. Expected production of tonewood on the group of forest habitat types 7K in the National Park Šumava is 9901 m3 in 20-year period.
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Case study of forest management of overmature stands in the fenced area Žehušická obora
Kubát, Pavel ; Šálek, Lubomír (advisor) ; Krykorková, Jitka (referee)
The bachelor thesis deals with the regeneration system in overmature stands in the fenced area Žehušická obora. The stands, where veteran big trees are located, were selected for evaluation in this thesis. The main tree species is oak with admixed lime and ash. . The circular sample plots, each one with the area 0,1 ha, were placed into two stands 37E17b/15a/5 and 35D17a. The basic mensurational characteristics were found out, such as diameter in breast height, tree height, height of first green branch, number of big dead branches and number of hollows. In the stand 37E17b/15a/5, the stock volume is 500,07 m3/ha, the density is 0,9 and the oak composition reaches 74%. In the stand 35D17a, the stock volume is 761,59 m3/ha, the density is 1,14 and the oak composition reaches 71%. The stands seems to be neglected from tending point of view and they rather fulfill aesthetic function, regarding their existence in the fenced area. The regeneration will be carried out by the system of clearcuts with longer regeneration period and the certain number of reserved trees will be left on place. Moreover, forest edges will be left without intervention.
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Comparison of production and quality of one-story and two-story pine stands on acid soils on 3rd vegetation belt
Sýkora, Jan ; Šálek, Lubomír (advisor) ; Martinisko, Jakub (referee)
The diploma thesis deals with comparison of production of one-story and two-story pine stands on acid soils on 3rd vegetation belt. The thesis provides comparison between two different silvicultural methods for Scotch pine (Pinus sylvestris L.).
The study area was located in central Bohemia, in the Forest Natural Area Křivoklátsko. Investigated forest stands belong to the military forests run by Vojenské lesy a statky, s.p., division Hořovice, forestry office Nouzov.
Using circular sample plots the stock volume and mensuration characteristics were measured and calculated in individual stands. Evaluated characteristics of one-story and two-story stands were compared.
The most important result of the research is the fact that Scotch pine (Pinus sylvestris L.) reaches higher production and higher timber quality in the two-story stands.
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Mensurational and ecological characteristics of oak reserved trees on selected area of 2nd vegetation belt
Šturmová, Iveta ; Šálek, Lubomír (advisor) ; Surový, Peter (referee)
The goal of this thesis is to find out mensurational and ecological characteristics
of oak reserved trees on selected locality in 2nd vegetation belt. The locality is situated
on upland region close to the town Kroměříž. A part of the thesis is measuring of crown parameters, their projection and development of the crown during competition process.
100 reserved trees were measured for this research, The average crown projection has value of 199,65 m2 which implies that maximal number of reserved trees per 1 hectare is 50. Furthermore, number of dead big branches and number of small and big hollows were recognized. The average number of big dead branches is 5,95. The small hollows occurred only in 8 trees and big hollows in 12 trees. Number of dead tres and hollows are influenced by competitive adjacent trees.
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