|
|
Changes of vegetation composition in hilly country forests depending on the application of historical forms of management
Nechanská, Denisa ; Boublík, Karel (advisor) ; Frouz, Jan (referee)
The aim of my study is to determine the influence of historical management practices on the camposition of vascular species in hilly country forests on the Vysoká stráň hill in the Bohemian Karst Protected Landscape Area in the Czech Republic. My thesis is divided into two parts. The first part of my thesis describes influences of forest management on the herb diversity from different scientific studies. There is some information about the influence of herbivorous grazing, pollarding, litter raking and fire. Secondly provides a case study dealing with the influence of historical management on the vascular species composition in the forest understory. My experimental area was divided into 32 treatments, where three different ways of historical management were used - mowing of the understory vegetation, litter raking and the combination of mowing and litter raking. The fourth area was a control treatment. Change in the herb diversity depending on a time is statistically significant but changes in the herb diversity depending on different ways of historical management are statistically insignificant. We detected a distinct decline in the herb diversity during our experiment, also on the control treatments. The main gradient of vegetation points from mesophilous acidophytes to species characteristic...
|
|
|
Effects of litter raking on plant-soil interactions
Husinecká, Tereza ; Münzbergová, Zuzana (advisor) ; Hadincová, Věroslava (referee)
Plant litter creates variously sized layer on soil and provides significant source of nutrients, especially carbon and nitrogen, for the whole ecosystem. Decomposition of plant litter forms the main source of soil organic matter and is an essential part of the global nutrient cycle. It also provides habitat for many organisms living on the boundary of soil. Also, plant litter makes a barrier which the light is unable to penetrate. Terrestrial ecosystems are affected by human activity and are subject to disturbances, including litter raking. Litter raking has been an integral part of forest management for several centuries in the past, significantly affecting the character of vegetation and the soil environment. The aim of this work is to summarize the findings of studies dealing with the effects of litter raking on the interaction between plants and soil. The first part of the paper is devoted to the litter, soil environment and its components, which are connected to the litter and second part of the paper is devoted to the effect of litter raking on the nutrient cycle, acidification, plant diversity and seed germination.
|
|
|
Changes of vegetation composition in hilly country forests depending on the application of historical forms of management
Nechanská, Denisa ; Boublík, Karel (advisor) ; Frouz, Jan (referee)
The aim of my study is to determine the influence of historical management practices on the camposition of vascular species in hilly country forests on the Vysoká stráň hill in the Bohemian Karst Protected Landscape Area in the Czech Republic. My thesis is divided into two parts. The first part of my thesis describes influences of forest management on the herb diversity from different scientific studies. There is some information about the influence of herbivorous grazing, pollarding, litter raking and fire. Secondly provides a case study dealing with the influence of historical management on the vascular species composition in the forest understory. My experimental area was divided into 32 treatments, where three different ways of historical management were used - mowing of the understory vegetation, litter raking and the combination of mowing and litter raking. The fourth area was a control treatment. Change in the herb diversity depending on a time is statistically significant but changes in the herb diversity depending on different ways of historical management are statistically insignificant. We detected a distinct decline in the herb diversity during our experiment, also on the control treatments. The main gradient of vegetation points from mesophilous acidophytes to species characteristic...
|
guest ::
