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Spontaneous succession and its role in vegetation recovery of post mining sites and other disturbed areas
Dobešová, Alena ; Frouz, Jan (advisor) ; Mudrák, Ondřej (referee)
Ecosystem restoration is vitally important, to return ecosystem in acceptable stage after anthropogenic disturbance. Spontaneous succession when disturbed area spontaneously recovers over time can be also considered as restoration method. This will restore vegetation cover, the interactions between biotic and abiotic components of the ecosystem, energy transfer, nutrient cycling and other important functions. In this thesis, I examined the influence of environmental variables on the cover of vegetation during succession. It was a mean annual temperature, mean annual precipitation, pH and soil types. The optimal course of succession appears to be a large increase of coverage at an early stage and its basically unchanged trend in other stages of succession. This was achived with an average annula temperature of 7řC, with an annual rainfall of 900 mm at pH 5 and the light and heavy soils. Key words: spontaneous succession, vegetation recovery, vegetation cover, disturbed areas
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Factors affecting oak spreading on post mining heaps
Janoušová, Ivana ; Frouz, Jan (advisor) ; Svoboda, Miroslav (referee)
The study was conducted on spoil heap Podkrušnohorská (50 ř 14'09 S, 12 ř 39'05 V) near Sokolov. Several factors that influence the establishment of oak were studied: the distance from the source of diaspors, type of habitat (succession vs alder reclamation), position of seedling on the wave and impact of animal grazing. Four alder restoration areas and three spontaneous succession areas have been mapped with GPS equipment, the occurence of mature oaks, which could serve as a source of acornsg was also mapped on the dump and in surroundings. Most seedlings (657) were found in the succession and only 98 in alder reclamation, and the occurence in succession was statistically significantly more frequent. The number of seedlings from sources diaspors decreased, the longest distance was over 1300 meters. For three habitats (spontaneous succession, alder reclamation, open space with grass vegetation (Calamagrostis epigeios)) were planted 12 oak seedlings in fence and 12 seedlings outsider of the fence. Annual growth rate and survival of oak were evaluated using two-way ANOVA. Results showed that the area has a significant effect on the growth of oaks. In alder reclamation and the open area had a high mortality of seedlings and small increase, the fence does not have significant influence on these areas....
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Factors affecting succession in abandoned mines
Valoušková, Martina ; Münzbergová, Zuzana (advisor) ; Püschel, David (referee)
Extraction of limestone in protected landscape areas is a huge phenomenon and problem at the moment. Need of its quantity and quality constantly rise. The pressure to expand mining areas, which are located on places with considerable landscape and culture wealth, is rising as well. Returning of damaged territories back to natural cycle from which they have been forcibly extracted is even a bigger problem. The great unknown is whether it is better to proceed by means of reclamation or let the territory to its own evolution - spontaneous succession. In my thesis I am going to deal with the problems of spontaneous succession and factors affecting it. It is important to find out how plants can spread to left and open areas after mining, where they are going to be the first inhabitants. The fieldwork take place Cerinka quarry in Czech Karst. The aim of the study is to collect informations how plants can spread from maternal habitats and try to find out if there are any hurdles, which could hinder plants in the expansion. By doing this it should be possible to identify why how to support spreading of the target species to the site. The research is based on regular collection of phytosociological relevés at the site. Key words: spontaneous succession, quarries, Czech karst, mining, reclamation, factors
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Factors affecting the course of primary succession in queries
Kuťáková, Eliška ; Münzbergová, Zuzana (advisor) ; Püschel, David (referee)
Abandoned quarries represent very important habitats for ecology and conservational biology: they have a potential to become refuges of species diversity in present landscape, strongly disturbed by humans. Natural value of these localities increases in case the localities are left for natural development and spontaneous succession, or if they are managed with the aim to obtain a natural community. To be able to do such a management is necessary to understand the mechanisms of succession as much as possible. In the theoretical part of my thesis I deal with factors, which can affect the course of succession in different ways, especially with climate, soil conditions, seed dispersal and interactions among plants and between plants and animals. This thesis is a theoretical basis for a research in quarry Čeřinka in the Czech Karst Protected Landscape Area. Dispersal abilities of species from the surrounding communities, changes in abiotic conditions at the localities and changes in species composition will be studied. The results of these studies should contribute to our understandings of primary succession in abandoned quarries and I am going to deal with them in my future diploma thesis.
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The comparison of diversity on spontaneously re-vegetated and technically reclamed dumps from coal mining in the Most region
MÁLKOVÁ, Lucie
Sites left to spontaneous vegetation succession and those technically reclamed were studied and compared on dumps in the Most Region, NW Czech Republic. Data were sampled in summer 2008 and 2010. Species composition and species diversity were analyzed using phytosociological reléves arranged along 100m transects. Alfa- and beta-diversity were evaluated. There were significant differences between sites in alfadiversity. Beta-diversity was highest in the spontaneously re-vegetated sites. There were also differences in species composition among the studied sites. I consider using spontaneous succession as appropriate in restoration of land disturbed by brown coal mining. It is a good alternative to expensive technical reclamation.
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The Comparison of spontaneous succesion and technical reclamation on the Radovesice dump in the Most Basin
MÁLKOVÁ, Lucie
Sites left to spontaneous vegetation succession and technically reclamed sites were studied and compared on the Radovesice dump. The dump is situated in the Most Basin, in the northwestern part of the country. Data were sampled during one season {--} in summer 2008. Species composition and species diversity were analyzed along 100m transects located in the different sites. There was no significant difference between this sites in species diversity. There were qualitatively differences in species composition between studied sites. In this point of view spontaneous succession is a good alternative to expensive technical reclamation.
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