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National Repository of Grey Literature 3 records found  Search took 0.01 seconds. 
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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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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Isolation of Bacteria \kur{Thiobacillus denitrificans} from acidic forest soil on Šumava
 BOŠKOVÁ, Hana
The aim of this work was to gather the information about bacteria Thiobacillus denitrificans. Various metods of cultivation were tested and specific probes were verified.
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