National Repository of Grey Literature 18 records found  previous11 - 18  jump to record: Search took 0.01 seconds. 
Structure, development and growing spruce-beech stands in the western Giant Mountains
Bulušek, Daniel ; Vacek, Stanislav (advisor) ; Michal, Michal (referee)
The subject of dissertation is to evaluate the structure, development and silviculture spruce-beech stands in the western Giant Mountains and design of differentiated silviculture of these stand in similar environmental conditions. The aim of this study was to describe the structure of trees natural regeneration and the structure of tree layer, evaluate their current development and to predict future developments and based on detailed analysis of habitat and stand conditions to propose a framework directive management of the studied stands and stands located in similar habitat and stand conditions in the Giant Mountains. For this purpose were used primarily permanent research plots (PRP) 1, 2, 8, 9 and 35 with the dimensions of 50 × 50 m, which were established and regularly monitored since 1980 (PRP 1, 2, 8 and 9), PRP 35 were established in 2004 and a number of other sub-plots. For the evaluation of natural regeneration was on each research plot marked transects 50 × 5 m (250 m2). Measurement of the natural regeneration included all individuals present at the individual transects, whose diameter breast-height diameter was smaller than 7 cm. After measuring all the data was evaluated spatial, species, height and thickness structure. To evaluate the tree layer were measured all individuals on permanent research plot with breast-height diameter greater or equal than 7 cm. The measured data were subsequently evaluated by mathematical-statistical methods. Visualization of the tree layer and development simulation was performed using the growth simulator biodynamic of forest SIBYLA. The results show that the structure stands was on individual permanent research plots very variable. Variability occurred in natural regeneration even within individual transects. Significant differences are evident in the development of stands that provide space for a wide range of near natural differentiated care within of stands type and individual types and subtypes of forest development.
The memorable trees of Melnik (Czech Republic)
Koprnická, Lucie ; Skalický, Milan (advisor) ; Martinková, Jaroslava (referee)
The theme of this thesis are memorabl trees, the Melnik, a town in the Central Region. The work is divided into theoretical part, which is drawn primarily from scientific publications, existing laws and regulations, as well as from the pages AOPK CZ and from information provided by the Municipal Bureau of Melnik. The theoretical part describes the history of the protection and protected trees in the Czech Republic, legislation protected trees, mensurational parameters described below are the most common defects of trees and there is general information on the care of memorial trees. The research deals with seven memorable trees in Melnik. This section focuses on the review and assessment of the health status of selected memorial trees, state sign, characteristic of their territory, to determine the owner of the tree and photographs. At the end of the work are author readings, comparing the values of previous measurements, and then there is the evaluation of the current status of protected trees in Melnik. The conclusion of this work is the management of protected trees and the care provided is drawn trees Melnik and suggestions for other recommended measures for these memorial trees.
Influence of leaf age on the Rubisco content
Matulková, Zuzana ; Zemanová, Jana (referee) ; Hrstka, Miroslav (advisor)
The bachelor’s thesis describes the influence of leaf senescence on the Rubisco enzyme content in Fagus sylvatica, grown both in normal and elevated athmospheric carbon dioxide concentration. Tha samples were collected at the Station of experimental ecology, Institute of systems biology and ecology, Academy of Sciences of the Czech Republic, White Cross in Moravian-Silesian Beskydy. To specify the determination three series of samples were taken in following order - the first one on 22nd May 2007, the second one on 24th July 2007, and the third one then on 4th September 2007.The Rubisco enzyme content in leafs was measured by the SDS-PAGE method. In Fagus species grown in elevated carbon dioxide concentration we observed the depression of Rubisco enzyme content during the vegetation period. Reversely in Fagus species grown in normal carbon dioxide concentration the Rubisco enzyme content was increasing.
Limity a možnosti přirozené obnovy buku lesního na LHC Kolowratské lesy
Zahradník, Tomáš
The aim of the thesis was to evaluate the possibility of natural regeneration of beech forest and its application to FMU Kolowrat forests. Selection of research areas was based on groups of forest types and by other characteristics such as different exposure, altitude and stocking of the stands. This thesis is based on the method of evaluation transect in forest stands. For each tree in the transect were measured these characteristics: height, the last increment of terminal, thickness of the root collar, shape and height of the deployment crown, number of lateral branches and their average game damage and other damage. Each of these characteristics were statistically evaluated. The result of this thesis shows that natural regeneration of beech is possible in whole evaluated area. From a biological and ecological perspective, is natural regeneration of beech convenient way for forest regeneration on those sites.
Diversity of ectomycorrhizal fungi in selected beech stands in Blanský les
HEJNA, Ondřej
The diversity and abundance of ectomycorrhizal fungi in three beech stands were compared during 2012 and 2013 years in two soil horizons. Individual ectomycorrhizal roots tips were morphologically and anatomically characterized. Representative morphotypes were identified by using molecular methods to confirm and verify ectomycorrhizal fungal species.
Diversity of ectomycorrhizal fungi in beech forest \kur{(Fagus sylvatica)}
HEJNA, Ondřej
The objectives of this work described here were to summarize and evaluate current knowledge in ectomycorrhizal fungi with the intention at the colonization of root system beech Fagus sylvatica to ectomycorrhizal fungi. This work mainly was targeted at diversity of these ectomycorrhizal fungi in beech forest affected positive and negative by environmental and anthropogenic factors. Last part of this work describes qualitative and quantitative methods used in investigation of ectomycorrhizal fungi and their diversity.

National Repository of Grey Literature : 18 records found   previous11 - 18  jump to record:
Interested in being notified about new results for this query?
Subscribe to the RSS feed.