|
|
Factors influencing the distribution of European Beech (Fagus silvatica) on the post mining spoil heap
Vobořilová, Veronika ; Frouz, Jan (advisor) ; Münzbergová, Zuzana (referee)
In this thesis the influence of existing vegetation, the distance from the north border of the spoil heap, animal grazing, terrain bumpiness, and soil pH on the distribution and rooting of European Beech (Fagus sylvatica) at spoil heap Velká podkrušnohorská výsypka (50ř14'09 N, 12ř39'05 E) was examined. To accomplish this, beech seedlings within chosen areas overgrown by spontaneous succession or alder restoration were mapped using GPS. A rooting position on the wave-like terrain was recorded for a proportion of the total number of seedlings. Soil pH was also measured on the wave-like terrain. The majority of seedlings (183) were found at the succession sites; only one seedling was found in the alder restoration site. The GLM analysis proved significantly more seedlings in succession sites compared to alder restoration sites (p = 0.0169) and the negative dependence on distance from the north border of the heap (p < 0.0001). Within the wave-like terrain, 46% of seedlings were growing on the north slopes. In 2009, small seedlings were planted into the fresh restoration site and the adjacent succession site, in both cases inside the fencing and outside of it. The seedlings were growing significantly better in the succession site compared to the restoration site, and they were growing better inside the...
|
|
|
Water regime of reclaimed and nonreclaimed heaps
Cejpek, Jiří ; Frouz, Jan (advisor) ; Kuráž, Václav (referee)
Summary: Great Podkrusnohorska spoil heaps in the Sokolov region in Western Bohemia is the largest spoil heaps in the Czech Republic, which was pour million tonnes of overburden soil surface mining of brown coal. The thesis is setting on the basic characteristics of the water regime and water balance of spoil heap soil and thus follows a series of previous works dealing with the comparative development of the reclaimed and unreclaimed area. The areas are long-term monitoring of soil moisture using a dielectric soil moisture meter total water regime was monitored by subsurface with gravitation lyzimeter, runoff and throughfall rainfall. Older unreclaimed plots as well as reclaimed plots have higher porosity, water field capacity and moistre than young sites, however there are limited by water deficiency in similatr way as young sites due to increase in wilting point. Keywords: Spoil heaps, Recultivation, Soil humidity, Water supply, Water balance
|
|
|
Spatial heterogeneity of heaps and plant and soil development
Harmáčková, Veronika Zuzana ; Frouz, Jan (advisor) ; Matějíček, Luboš (referee)
Spatial heterogeneity is an important ecological factor influencing the species diversity of a community. Research of spatial heterogeneity was carried at a spoil heap in a brown coal mining district near Sokolov, the Czech Republic. The study site was located in a non-reclaimed part of the spoil heap with a characteristic microrelief, consisting of terrain waves. This part of spoil heap has been overgrown by spontaneous vegetation. A detailed model of microrelief was made and soil pH of microhabitats and the distribution of wooden vegetation were mapped. The results suggest that spatial heterogeneity of the microrelief strongly influences the spatial heterogeneity of soil qualities. Three main sources of the spatial heterogeneity of soil qualities were identified: (1) the features of dumped substrate, (2) local transport and (3) the abundance of wooden vegetation. Spatial heterogeneity of microrelief also influences the way of vegetation establishment and leads to an irregular tree distribution. Wooden vegetation tends to establish at the north, leeward side of the wave and on the steeper slopes, the lengths of which are around 5 meters. Soil pH on individual waves and microhabitats is influenced by both microrelief and the number of wooden vegetation. Spatial heterogeneity of microrelief...
|
|
|
Alien species of plants and biotic resistence of invaded communities
Kubátová, Michaela ; Dostál, Petr (advisor) ; Frouz, Jan (referee)
Michaela Kubátová Alien species of plants and biotic resistence of invaded communities This study is about problems and questions of alien plants and their relation to native communities in their new range. Ecologists are increasingly aware that soil organisms may affect plant communities because they are part of the processes that affect them. The soil organisms may affect the success of alien species invasion. Each species of plants differ in interaction with soil organisms, these interactions can result in specific feedback that will influence the future growth of other plants. According to Darwin's naturalization hypothesis related species should have similar enemies. This implies less successful invasion of alien plants at home with relatives. The practical part consists of two experiments. Using plant-soil feedback I studied under controlled conditions the importance of kinship of native plants and their soil organisms on the growth of three species of alien plants Impatiens, Parviflora, Stenactis annua and Epilobium ciliatum. There were used soil samples from localities with related and unrelated species; the soil was used as inoculums for growing first-generation plants, where there were original related, unrelated and alien plants. In the second phase only alien species were grown. Part of...
|
|
|
The effect of soil successional development in spoil heap on plant germination and growth
Pavlíčková, Hana ; Frouz, Jan (advisor) ; Mudrák, Ondřej (referee)
Previous field research show, that late successional species correspond with soil development, especially with organomineral A horizon developing. Aim of my thesis was to compare plant growth on different types of soil from spoil heaps. They were taken from three chronosequencies of different age - nonrecultivated and soils recultivated with planting of alder (Alnus) and spruce (Picea). In my research were used 7 types of plants - Arrhenatherum elatius, Centaureae jacea, Festuca rubra, Lychnis flos-cuculi, Lotus corniculatus, Plantago major, Trifolium medium. Spontaneous sites support more species than reclaimed ones this difference increase with plot age without distinct difference between early and late succession species. Key words Succession, recultivation, germination alder (Alnus), spruce (Picea), Arrhenatherum, Centaureae, Festuca, Lychnis, Lotus, Plantago, Trifolium.
|
|
|
Comparison of two methods of soil organic matter fractionantion
Fryčová, Kateřina ; Frouz, Jan (advisor) ; Borůvka, Luboš (referee)
Comparison of two different soil organic matter fractionation methods Soil organic matter (SOM) significantly affects physical, chemical and biological properties of soils and plays also a crucial role in the global carbon cycle. In order to simulate SOM dynamics a number of mathematical models have been developed. These models divide SOM into several theoretical pools according to their stability. Unfortunately, lacking experimental procedure which could measure these pools directly, although for this purpose a wide range of fractionation procedures were developed, that are trying identified empirical fractions with theoretical model pools. An objective of this experiment was to reproduce two fractionation procedures on a set of twenty-seven laboratory-prepared samples: according to Six and according to Zimmermann and to compare their results. Also the relationship between respiration and the amount of carbon in different pools was compared. The most significant differences were found in active pools, where Six's method found twice as much carbon than Zimmermann's one. Finally response of both method results to various environmental parameters (mineral composition, litter type and soil mixing) was compared. According to the results of Zimmermann's method the amount of carbon in different pools was mainly...
|
|
|
Determination of white rot fungi Biomass during cultivation using analytical techniques
Vlasenkova, Tatiana ; Cajthaml, Tomáš (advisor) ; Frouz, Jan (referee)
The role of fungi in the soil ecosystems is well known. Exact determination of the fungal biomass is necessary for the understanding of their role in the cycle of soil nutrients, in the existing food chains of various animal types and in the soil aggregation. Bachelor's thesis is aimed at determination of white rot fungal (L. tigrinus, P. osteratus, I. lacteus, T. versicicolor) phospholipid-fatty acids and ergosterol (free and total) quantitative content with the subsequent comparison of the research results among themselves. Straw pellets were used as a sterile substrate for mushrooms. Their period of cultivation was 5, 8, 12, 16 and 20 days. The theoretical part describes methods for determining the microbial biomass, properties of ergosterol biosynthesis, lipids and fatty acids. Tools of gas and liquid chromatography, their use in determining the phospholipid-fatty acids and ergosterol in real samples are summarized. The experimental part of the procedure describes preparation of methylesters of fungi freeze-dried specimens that had previously been used in a biodegradation experiment. It just describes a method of determining fatty acids by gas chromatography, the extraction of ergosterol (free and total) and its subsequent determination using liquid chromatography. Based on the definition of...
|
|
|
What are diferences between parks and gardens and natural ecosystems
Píšová, Martina ; Frouz, Jan (advisor) ; Görner, Tomáš (referee)
This work highlights the importance of green spaces in an urban environment not only for human and his activities, but especially for the biotic element of environment. To these artificial ecosystems, despite their non-productive function, people provide deluxe services such as irrigation and fertilization. This is also reflected in the change of biogeochemical cycles, especially the carbon and nitrogen cycle. The work focuses on the issue of expansion of non-native plant and animal species and extrusion of native species from their natural habitat. By this process the native species are highly threatened in urban environments. The questionnaire survey examined the ability of the respondents, how they can detect semi-natural ecosystems from artificial ecosystems, which have been divided into several categories (choices for artificial ecosystems were: ornamental, romantic and close to nature parks and gardens and choices for natural ecosystems were: forest ecosystems, forest steppe, grassland and aquatic ecosystems). There were examined also emotions, which were invoked by different types of landscapes at respondents, and their preference for self-relaxation in different types of landscapes. Keywords: natural ecosystems, urban ecosystems, biodiversity
|
|
|
Topsoil application in reclamation practice advantages and pitfalls
Čížková, Barbora ; Frouz, Jan (advisor) ; Bartuška, Martin (referee)
This paper deals with spreading the topsoil to the dumps after brown coal mining as reclamation measure. Here I describe its advantages and disadvantages for soils and ecosystems restoring and the soil organic matter budget. Furthermore, I present here my pilot work dealing with long-term storage topsoil in stockpile and its impact on soil microbial parameters, especially microbial respiration and amount of biomass after stockpile disturbance. Soil used for the research came from different depths of excavated stockpile. The samples were measured for soil respiration by titration and amount of microbial biomass by fumigation-respiration method. The highest values were always measured in samples from greatest depths. It is due to greater making use of accumulated carbon, which becomes better accessible to microorganisms after erosion of stockpile. Keywords: brown coal, soil organic matter, reclamation, topsoil, post-minig sites
|
|
|
Microbial activity of deep subsurphace miocen sediments near Soklov
Galertová, Renata ; Frouz, Jan (advisor) ; Kryštůfek, Václav (referee)
In my diploma thesis I observed microbial activity in Miocene sediments collected at two different depths - 30 and 150 meters - in the "Družba" open-mine pit, which is located in Sokolov Brown Coal Basin. There were three different types of sediment: lamellar, amorphous and transitional. Samples were obtained under sterile conditions and following treatments were applied to the transitional sediment: addition of glucose, wetting and freezing. The aim of my study was to observe the activity of the original microflora at various depths and the impact of environmental factors that can affect the quarried claystones after being put on heaps. Microbial activity was evaluated by measuring released CO2 (titration). Obtained values of microbial activity did not show any differences between the respiration of sediments of different ages (depths), but differences between different types of sediments were significant, the highest values were found in lamellar sediment. Affection of samples then showed biota activity response suggesting that microbial communities at lower depths are limited by nutrients. Because the application of glucose did not show any noteworthy effect, we can assume that these communities are specialize on present fossil organic matter they are able to decompose, which is important especially in...
|
guest ::
