National Repository of Grey Literature 2 records found  Search took 0.02 seconds. 
Vliv lesnického hospodaření na stav a kvalitu půd pařezin
Konečná, Martina
The present study deals with description of the state and quality of soil in coppice and comparing these variables with soils in the stands with a different type of management. One of the goals was also to describe the impact of forest management on the top soil. In order to implement the research were established four research plots on Hádecká platform so as to be within the same group of forest types, with similarity in tree species composition and history of the management, and also that differs by current type of management (false high forest without management, high forest, false high forest with active management and young coppice. The data collection was biphasic, in the first phase were measured the dendrometric data from which were subsequently calculated species composition within the research plots. Simultaneously was carried out sampling of humus and taking mixed samples of soil from the Ah horizon. In the second phase were collected undisturbed soil samples using the soil sampler. Samples from soil surveys were laboratory processed, quantified for each group of soil properties and then statistically evaluated by using ANOVA and PCA. The results have proven that the influence of forest management on state and quality of soil is not significant, it was also shown that the soil within the coppice was overall in favorable conditions. At the end of the present study is separated chapter dedicated to the application of the results in recommendations for forestry practice.
Comparison of soil microbial activity on sites with different forest management practices
Volánek, Jiří
Presented thesis is focused on microbial activity of forest soils and aims at characterizing some of its parameters on sites with different silvicultural management practices. Coppice, coppice-with-standard and high forest stands were compared in terms of carbon and nitrogen content, content of microbial biomass, enzymatic activity and selected physical properties of soil. Study was conducted between September 2015 and April 2016 on pre-existing TARMAG II research plot near Soběšice, Brno, Czech Republic. Samples were collected during three different calendar seasons, allowing for seasonal dynamicity assessment of the studied parameters. Statistical evaluation detected significant effect of management type on potential respiration of studied soil samples as well as significant effect of seasonality on microbial biomass content in incubated samples, phosphatase activity in fresh soil samples, catalase activity in both fresh and incubated samples and potential respiration of studied samples. Results also show that the overall potential activity of urease and catalase was at its highest during the winter season.

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