|
|
Turnover of aboveground biomass in a dominant species of a wet meadow
MEJDOVÁ, Markéta
This Bachelor{\crq}s Thesis is a part of the SP/2d1/93/07 (Czech Terra) project of the Department of Environment, which is focused on an assessment of carbon cycle and carbon balance in selected ecosystems of the Czech Republic. Within this project there is assessed production of aboveground biomass of wetland vegetation in the location of Mokrá luka (Wet Meadow) near Třeboň. In the presented Bachelor{\crq}s Thesis I focus on documentation of conversion of aboveground biomass of tulfted sedge (Carex acuta L.), which represents a dominant of the flooded part of Wet Meadows. My thesis consisted in non-destructive observation of aboveground biomass accumulation in selected humps, during which I assigned dry mass value to tillers growing in these humps on the basis of an analogy with parallel samples. At the selected tillers I observed dynamics of leaf growth during vegetative season, their drying up and falling. In this thesis I also deal with the differences in growth dynamics at generative and vegetative tillers. During their growth the generative tillers had on average only three leaves; in total they had on average seven leaves, which means that four leaves started to grow in previous autumn. Since seeding the leaves were dieing and the last live ones were observed on 13 August. During August and at the beginning of September the leaves started to fall more. At vegetative tillers the number of leaves during the growth period increased. At the beginning of measurement of these dynamics (4 June) the tillers had on average 10 leaves, from which three were from the previous autumn; by September their number increased to 14. During the growth period the tiller had 5-6 photosynthetic active leaves. The leaves fell more slowly than at generative tillers.
|
|
|
Study of light microclimate in a chosen vegetation type during vegetation season
STOLIČKOVÁ, Martina
The aim of Bachelor thesis is the analysis of light microclimate depending on the production profile of sedge vegetation ( Carex acuta L. ) during the growing season. The light transmission of the growth of sedge and its changes during the growing season were examined. Then the seasonal cycle of the incoming and reflected solar radiation, including the albedo was evaluated.The seasonal changes in increase of aboveground live biomass, the amount of dry matter in the vertical vegetation profile, the distribution of leaf covering and the extinction coefficient changes during the growing season were assessed. The study of light microclimate and the biomass sampling was conducted in Mokré Louky near Třeboň close to pond Rožmberk. The largest representation of plant species has got Slender sedge ? Carex acuta L. there. The findings of relative insolation and light transmission was measured by pyranometer and the sampling of aboveground part was conducted by destructive method. These results show that the transmission is the highest at the vegetation surface and it decreases with the declining height. In August there was a radical decrease in the impact and the reflection of solar radiation due to the higher concentracion of water in the soil and air and this led to a reduction in albedo. Live biomass was measured: in July 1820g, in August 1670g and in September 1789g.The values of LAI and dry matter, recorded from July to September,were gradually decreasing and with the growing measured layer of growth there was a reduction in amount of dry matter and value of leaf area index.The extinction coefficient value varies depending on the age of stand. With the vegetation age the extintion coefficient increased up to 200,38. The Bachelor Thesis was developed within the research project of Faculty of Agriculture MSM 6007665806 ? The sustainable methods of farming in the foothills and mountainous areas,aiming to create harmony between their production and non-production application?.
|
|
|
The proposal of cultural tourism development project in Třeboň region
VOCHOZKOVÁ, Lenka
The objective of this Diploma Thesis is to draft a project of cultural tourism development in Třeboň region. Quantity of ponds and water courses are typical for this territory, and it also parades with a number of water mills that are architecturally or technologically valuable in terms of historic monuments. Despite their value they are not used as touristic sites and that is why to draft a project of Museum of miller's craft Mill of Spolí is a constituent of the Thesis. The sense and the objective of the project are to provide public access into the existing building of the Mill of Spolí as a technical monument. Museum exposition and practical demonstrations of mill machinery should improve the visitors' knowledge and it should inform them about the history of miller's craft and about the history of the Mill of Spolí itself. By these means the fame of Czech miller's craft as one of the traditional elements of country settlement should be reminded.
|
|
|
Demografic determinants of tourism and service development in the region of Třeboň
ČUTKOVÁ ADAMCOVÁ, Martina
This thesis describes demografic determinants of tourism and service development in the region of Třeboň. The theoretical part deals with description of this region and its municipalities. It describes the main benefits of Třeboň and its surroundings - nature, fishpond cultivation and spa. The analytical part investigates the selected demografical determinants which influence the posibility of the tourism development in this region. The results of this research confirm the theory of regional development. The aim of this thesis is to focuse on the problematical parts in this region and propose new possibilities of tourism and service development.
|
|
|
Effect of inter-annual differences of selected meteorological parameters on species composition of the Wet meadows near Třeboň
FRANCOVÁ, Kateřina
The aim of this thesis is to evaluate the inter-annual differences in species composition of selected stands of a wet meadow ecosystem in relation to determining meteorological parameters. Changes in plant communities were studied in selected parts of the Wet meadows near Třeboň. Inter-annual differences were found only in the cover of dominant species, but not in the constancy of species.The average cover of Phalaris arundinacea was greater in 2007 than in 2006. A further increase was observed in 2007 in the cover of Calamagrostis canescens, whose presence on the wet meadows was previously limited by the floods in 2002. Calamagrostis canescens again appeared on the Wet meadows in 2006, but its growth was promoted only in the drier year 2007. The results show that the community is relatively stable in relation to short-term fluctuations of the weather.
|
|
|
Effect of fertilization on primary production of a herbaceous wetland stand
LAZÁRKOVÁ, Kateřina
This thesis is part of the project GA CR No 526/09/1546 (``Importace of newly assimilated carbon to the interaction of plants with soil in grassland and wetland ecosystems in varying environmental conditions``). The goal is to establish aboveground crop production of the Wetland Nature Reserve Záblatské meadows near Třeboň and determine whether fertilization in previous years has an influence on species composition and production. Aboveground biomass was established in June 2009 by the destructive method. Overall, 24 samples (yield + stubble) were collected from 12 sites. The samples were taken from plots of 0.5 x 0.5 m. The biomass values were expressed per an area of 1 m-2. Effect of fertilization was studied in areas subjected to different doses of fertilizer from 2006-2008: 300 kg NPK. ha-2 (HI treatment), 65 kg NPK. ha-2 (LOW treatment) and unfertilized (NO treatment). Total aboveground biomass was 723,05 g.m-2 in the HI treatment, 711,12 g.m-2 variants in the LOW treatment and 712,72 g.m-2 in the NO treatment. Long-term fertilization suppressed the production of mosses.
|
|
|
Cultural heritage and development of tourism in Třeboň region
VOCHOZKOVÁ, Lenka
The object of this bachelor thesis is to evaluate current condition and opportunities of further cultural heritage`s utilization together with the tourist trade development in the area of Třeboňsko. For this purpose 50 types of cultural heritage attractivity was being observed in this area and during the period July {--} September 2008 through a primary marketing research there was implemented a face-to-face questioning with 1598 domestic tourist visitors.
|
|
|
The Nature Attractions of the Třeboň Region and their Utilisation in Natural Sciences.
VACH, Petr
This dissertation deals with the natural and national history themes. There are suggested five excursions, two cycle-excursions, one project and one instruction lesson. The aim of this dissertation is the reinforcement and fixation of a good relation of pupils to nature by interesting and accessible forms and to teach them how protect it in the interest of mankind. The thesis is being done for the pupils of 4th and 5th grade of basic schools. There are working sheets with the tasks prepared for pupils that are continuously completed at separated way points of excursions.
|
|
|
EFFECT OF MOWING ON SPECIES COMPOSITION AND ABOVEGROUND BIOMASS OF A EUTROPHIE WET MEADOW
FRANCOVÁ, Kateřina
The bachelor thesis is part of Project No. 526/06/0276 of the Grant Agency of the Czech Republic, entitled Eutrophication of wet meadows: effect on plant {--} soil interactions with emphasis on carbon and nitrogen transformations, in which the Institue of Systems Biology and Ecology of the Academy of Sciences of the Czech Republic takes part. The aim of this work is to document the condition of a waterlogged herbaceous stand that had not been mown for more than 30 years, as well as of adjacent stands subject to different frequencies of mowing, all of them situated in the complex of the Wet Meadows near Třeboň. The work addresses the current state of the vegetation in respect of species composition and biomasss production on a selected part of the Wet Meadows. The results are compared with results of research that has been carried out on the locality during the previous 30 years. The conclusions confirm that the vegetation becomes unstable, with prevailing competitively strong and synanthropic species, especially Symphytum officinale, Urtica dioica, and Rumex obtusifolius. Phalaris arundinacea is becoming the dominant species of the waterlogged and mown part of the Wet Meadows.
|
|
| |
guest ::
