National Repository of Grey Literature 19 records found  1 - 10next  jump to record: Search took 0.01 seconds. 
Predikace druhového složení těžeben na základě biotopového mapování okolní krajiny: využití charakteristických druhů vyšších rostlin
SLABA, Michal
The surrounding habitats play an important role in the spontaneous vegetation succession in disturbed sites. They serve as donor sites for species colonizing various post-mining sites from the close surrounding. This diploma thesis deals with the species composition in post-mining sites and the surrounding habitats up to the 1 km distance from the locality. The results indicate, that basalt quarries share the largest amount of species with their surrounding habitats. The studied methods have got limited capability to predict the species composition of post-mining sites using only the knowledge about habitat types occurred in the surrounding. On the other hand, species composition of the surrounding habitats, defined by a selection of the representative relevés of the Czech National Phytosociological Database (CNFD), seems to be more promising approach. It could provide more precise results applied in ecological restoration of post-mining sites in the Czech Republic.
Development of dry grassland communities during recultivation of limestone quarries
Turek, Pavel ; Münzbergová, Zuzana (advisor) ; Kladivová, Anna (referee)
My bachelor thesis is about methods of reclamation and rejuvenation of limestone limestone quarry, that are a very interesting location from an ecological point of view. I briefly pointed out the positives and negatives of individual used methods, such as reclamation, that aims to restore the vegetation cover quickly, but is very expensive and species that appear on the reclaimed locations aren't nearly as rare, as those on locations that are left to natural succession. Natural succession has the best results if the location is in close vicinity to a source of seeds. Reclaimed areas show a significantly lower biodiversity and hinder protection of rare and key species as opposed to natural succession. To avoid this, in some cases we can use smaller interventions instead of reclamation, and these interventions should be done as delicately as possible with the principles of natural succession in mind. I've noted important factors such as the microclimate, the soil conditions and the source of seeds, that can affect the succession and the legislation and waste law, that influence to a certain degree how the rejuvenation of disrupted sites proceeds.
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.
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
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
The potential of natural succession in restoration of abandoned quarry on the example of the quarry Smrci
Petrů, Anna ; Frouz, Jan (advisor) ; Matějíček, Luboš (referee)
This bachelor's thesis deals with the role of spontaneous succession in restoration ecology of sites damaged by mining. I briefly introduce its positive and negative aspects. The main purpose of my thesis is to summarize the knowledge of spontaneous succession in different types of quarries, especially as far as plant vegetation is concerned. This knowledge is applied in my study of the basalt quarry Smrci in which I attempt to assess the potential of natural succession on sites left to spontaneous succession based on my research.
Plant-soil feedback and locality management as factors determining vegetation development
Opravilová, Tereza ; Kuťáková, Eliška (advisor) ; Mayerová, Hana (referee)
Places disturbed by the mining of minerals occupy a substantial part of the Earth's surface. Together with the abandonment of these sites after the mining process, the issue of the restoration of plant communities is addressed. One way of such recovery is spontaneous succession. This is influenced by many factors, including plant-soil feedback, the indirect interactions among plants mediated by soil environment, thanks to which succession can be slowed or accelerated. If we want to preserve a certain grassland community in places of restored spontaneous succession, it is advisable to introduce some management methods at the site. These are usually mowing or pasturing. This work summarizes the knowledge about plant- soil feedback, succession in quarries, various management methods and their impact on plant communities. It serves as a theoretical basis for my diploma thesis on the model site of the Čeřinka quarry in the Czech Karst where I plan to observe the influence of grazing on the plant community by phytosociological relevés, and, using experiments, to observe the mutual influence of plant-soil feedback and grazing on plant growth.
The topic of recultivation and spontaneous succession with usage in education
Seidlová, Martina ; Skýbová, Jana (advisor) ; Hanel, Lubomír (referee)
The presented bachelor thesis is divided into a theoretical and a practical part. The theoretical part is the introduction to the issue of classic recultivations and spontaneous succession in the Czech Republic. It deals with both herbs as well as suitable and unsuitable woody species used during recultivation. There are examples of places which have been recultivated or were by accident or luck left to nature. Endangered and rare species of fauna and flora which can be found at this type of disturbed places are also mentioned with regards to specific types of recultivations. To get a better idea of recultivations and succession some chapters are accompanied by picture documentation. Two terrain excursions for elementary school pupils are suggested in the practical part. These excursions should, accompanied by a suiting explanation, help understand the issue of the presented topic. Activities such as word-finder games, a short test and a creative part are presented to the pupils for better consolidation of knowledge. KEYWORDS recultivation, spontaneous succession, types of recultivations, herbs and woody species, Czech Republic
Development of dry grassland communities during recultivation of limestone quarries
Turek, Pavel ; Münzbergová, Zuzana (advisor) ; Kladivová, Anna (referee)
My bachelor thesis is about methods of reclamation and rejuvenation of limestone limestone quarry, that are a very interesting location from an ecological point of view. I briefly pointed out the positives and negatives of individual used methods, such as reclamation, that aims to restore the vegetation cover quickly, but is very expensive and species that appear on the reclaimed locations aren't nearly as rare, as those on locations that are left to natural succession. Natural succession has the best results if the location is in close vicinity to a source of seeds. Reclaimed areas show a significantly lower biodiversity and hinder protection of rare and key species as opposed to natural succession. To avoid this, in some cases we can use smaller interventions instead of reclamation, and these interventions should be done as delicately as possible with the principles of natural succession in mind. I've noted important factors such as the microclimate, the soil conditions and the source of seeds, that can affect the succession and the legislation and waste law, that influence to a certain degree how the rejuvenation of disrupted sites proceeds.
Factors influencing vegetation establishment during spontanous succession in basalt quarries
Petrů, Anna ; Frouz, Jan (advisor) ; Roubíčková, Alena (referee)
Mining and construction industry is a major environmental disturbance creating habitats with extremely coarse material: gravel, cobbles and boulders. Simultaneously, there is an increasing interest in using spontaneous succession during restoration processes on those areas. This leads to a question if vegetation can establish on such coarse substrates. This project assessed the vegetation establishment on substrates with different grain size as well as the hydrological limitations of those substrates. The aim of this study was to find substrate moisture characteristics supporting vegetation establishment. Four herb species (Koeleria macrantha, Epilobium angustifolium, Artemisia campestris var. campestris and Poa nemoralis) typically occurring on xerothermic basalt rocks were sowed on basalt construction aggregates (0-4, 2-4, 4-8, 8-16, 11-22 and 32-63 mm). There were also made mixtures of coarse aggregates (4-8, 8-16 and 11-22 mm) as a base with 10% or 50% additive of fine aggregates (0-4 mm). The final number of individuals, aboveground and belowground dry biomass were measured and subsequently specific leaf area (SLA) was calculated. They were also measured substrate moisture characteristics: field capacity (PVK) and wilting point (BV) from which available water content (ODV) was obtained as...

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