35 research outputs found

    Hrastovi gozdovi v severnem delu gorovja Štiavnické vrchy (srednja Slovaška)

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    The phytosociological research of the oak forest vegetation was carried out in the northern part of the Štiavnické vrchy Mts (Central Slovakia) using the standard Zürich-Montpellier approach. The data set consisting of 41 phytosociological relevés was obtained by the authors in two vegetation seasons in 2008 and 2009. The numerical classification and the ordination methods were applied to determine the main vegetation types and to explain the structure of the vegetation-environmental data matrix, respectively. Four associations within two classes were distinguished: Luzulo albidae-Quercetum petraeae Hilitzer 1932, typical for shallow, mineral-poor and acidic soils, Melico uniflorae-Quercetum petraeae Gergely 1962 occuring on mesic stands with skeletal and deeper soils, Poo nemoralis-Quercetum dalechampii Šomšák et Háberová 1979 developing on moderately canopyopened stands in the submontane belt, Sorbo torminalis-Quercetum Svoboda ex Blažková 1962 growing on moderately acidic substrates in drier regions. The major environmental gradients responsible for variation in forest species composition was associated with soil nutrient and soil reaction following the Ellenberg indicator values as well as the measured environmental variables (C/N-ratio and soil acidity). Special attention was given to the discussion on species composition and site ecology.Fitocenološke raziskave hrastovih gozdov v severnem delu gorovja Štiavnické vrchy (srednja Slovaška) smo naredili po Zürichško-Montpellierski metodi. Enainštirideset vegetacijskih popisov smo naredili v dveh vegetacijskih sezonah v letih 2008 in 2009. Za določitev glavnih vegetacijskih tipov in za obrazložitev strukture podatkovne matrike vegetacijskih popisov in ekoloških spremenljivk smo uporabili numerično klasifikacijo in ordinacijo. Znotraj dveh razredov smo ločili štiri asociacije: Luzulo albidae-Quercetum petraeae Hilitzer 1932, značilna za plitva, z minerali revna, kisla tla, Melico uniflorae-Quercetum petraeae Gergely 1962, ki se pojavlja na mezičnih rastiščih s skeletnimi, globljimi tlemi, Poo nemoralis-Quercetum dalechampii Šomšák et Háberová 1979, ki se razvije v zmerno odprtih sestojih v submontanskem pasu, Sorbo torminalis-Quercetum Svoboda ex Blažková 1962 pa uspeva na zmerno kislih tleh v sušnejših predelih. Glavna okoljska gradienta, ki vplivata na floristično sestavo, sta hranila v tleh in reakcija tal. Odražata se tako v Ellenbergovih indikatorskih vrednostih kot v merjenih okoljskih spremenljivkah (C/N razmerje in kislost tal). Poseben poudarek smo namenili diskusiji o vrstni sestavi in ekologiji rastišč

    Design of the Part of Company's Information System

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    Bakalárska práca sa zaoberá návrhom časti informačného systému v malom podniku. Obsahuje analýzu súčasného stavu podniku a jeho elektronického obchodu pre ktorý je informačný systém navrhnutý. Výsledkom tejto práce je návrh informačného systému pre zjednodušenie práce s dátami elektronického obchodu.This bachelor thesis deals with the design of the part of the company’s information system in the small company. It contains analysis of the current state of the company, as well as its e-shop, for which is the information system designed. The result of this thesis will be a design of an information system, which should simplify the work with data from e-shop.

    Syntaxonomy and ecology of forest vegetation in the Štiavnické vrchy Mts (Central Slovakia)

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    Vegetation of deciduous forests in the Štiavnické vrchy Mts (Central Slovakia) was studied using the standard Zürich-Montpellier approach. The numerical classification and ordination technique were applied to determine the main forest vegetation types and to find the responsible environmental drivers related to their distribution patterns, respectively. The data set including 198 relevés collected by authors in 1997-2009 and 185 relevés excerpted from literature was used to analysis. Numerical classification resulted in delimitation of fourteen vegetation types representing eleven associations with two variants and two communities within the Quercetea robori-petraeae and Querco-Fagetea classes. The major environmental gradients in variation of forest species composition were associated with moisture and nutrient content following the average Ellenberg indicator values. Along the moisture gradient, vegetation types were ordered from subxerophilous oak forests turn mesophilous mixed oak-hornbeam, beech and ravine forests to hygrophilous riparian alder forest. The results confirmed important role of soil nutrients and moisture by determination of forest vegetation in subcontinental part of Central Europe. Special attention was given to the discussion of floristical characteristics, site conditions and syntaxonomy

    Veronico beccabungae-Mimuletum guttati, a new plant community in Slovakia

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    Vegetation with high coverage by the alien species Mimulus guttatus was studied in the hilly regions of central Slovakia in 2015 and 2016. The floristic composition of these stands was recorded in ten phytosociological relevés corresponding to the Veronico beccabungae-Mimuletum guttati (alliance Glycerio-Sparganion) association. This association was reported for the first time in Slovakia in this study. This association was found to be closed or almost closed (mean coverage value of herb layer = 92%) and formed relatively species-rich stands (15 species per relevé), usually in narrow and small patches along the upper parts of streams and their spring areas in uplands at altitudes from 561 to 1,048 m. Localities with the Veronico beccabungae-Mimuletum guttati association were characterized by typical mountain climates, with both relatively low mean annual air temperature (5.5°C) and high mean annual precipitation (885 mm). While water temperature (~13°C) of these habitats varied considerably among streams (7.4–19.9°C), their herbaceous vegetation preferred neutral to slightly alkaline water (pH = 6.1–7.5) with low amounts of soluble mineral matter (~72.6 μS cm−1). This kind of vegetation was most often developed on sites with coarser sediments (stone, gravel, and sand) formed from crystalline bedrock. A comparison of vegetation data of the Veronico beccabungae-Mimuletum guttati association across Central Europe demonstrated considerable floristic variability among regions

    The distribution of alien species Geranium sibiricum in Slovakia

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    The paper presents data on the distribution and spread of the alien vascular plant species Geranium sibiricum in Slovakia. Greater attention should be given to the existing data on its chorology and habitat preferences in the country. Some pertinent records are dispersed in various local literature sources and herbaria. In Slovakia, this alien species was recorded for the first time in 1924, but the significant increase in localities started after 1980. G. sibiricum has been found in 67 localities scattered irregularly throughout the Pannonian and Carpathian phytogeographical regions. It has been noted in a wide range of anthropogenic habitats at low to middle elevations. Recently, it has spread mainly in urban areas in eastern Slovakia and along railway tracks in northern and western Slovakia

    Syntaxonomy and ecology of forest vegetation in the Štiavnické vrchy Mts (Central Slovakia)

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    Vegetation of deciduous forests in the Štiavnické vrchy Mts (Central Slovakia) was studied using the standard Zürich-Montpellier approach. The numerical classification and ordination technique were applied to determine the main forest vegetation types and to find the responsible environmental drivers related to their distribution patterns, respectively. The data set including 198 relevés collected by authors in 1997-2009 and 185 relevés excerpted from literature was used to analysis. Numerical classification resulted in delimitation of fourteen vegetation types representing eleven associations with two variants and two communities within the Quercetea robori-petraeae and Querco-Fagetea classes. The major environmental gradients in variation of forest species composition were associated with moisture and nutrient content following the average Ellenberg indicator values. Along the moisture gradient, vegetation types were ordered from subxerophilous oak forests turn mesophilous mixed oak-hornbeam, beech and ravine forests to hygrophilous riparian alder forest. The results confirmed important role of soil nutrients and moisture by determination of forest vegetation in subcontinental part of Central Europe. Special attention was given to the discussion of floristical characteristics, site conditions and syntaxonomy

    A new marsh plant community of Eleocharito palustris-Alismatetum lanceolati (Eleocharito palustris-Sagittarion sagittifoliae alliance) in Slovakia

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    Open and species-poor stands with a dominance of Alisma lanceolatum were recorded in periodically flooded habitats of the southern part of central Slovakia (Ipeľ River catchment area) during the summer of 2013. Phytosociological relevés correspond to the association Eleocharito palustris-Alismatetum lanceolati (alliance Eleocharito palustris-Sagittarion sagittifoliae), which is reported and documented here for the first time from the territory of Slovakia. It inhabits predominantly temporarily flooded depressions on agricultural land – wet arable fields and extensively used pastures. Detrended correspondence analysis showed that the variability in species composition was most significantly influenced by water depth, the presence of arable fields in the contact area and water conductivity. Special attention was paid to a detailed description of the floristic composition, habitat requirements, distribution patterns and nomenclature of the community

    Variability of alder-dominated forest vegetation along a latitudinal gradient in Slovakia

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    Syntaxonmical revision of azonal forest vegetation with dominance of Alnus glutinosa and A. incana was done along a latitudinal transect of Slovakia. A data matrix consisting of 240 phytosociological relevés was obtained in accordance with the standard Zürich-Montpellier approach. Detrended correspondence analysis was used to clarify the relationships between the vegetation composition and environmental variables, whereas one-way ANOVA was applied to quantify the differences in site requirements of particular vegetation types. The unsupervised numerical classification resulted in identification of five clusters corresponding to the traditionally described and ecologically interpretable associations within the Euro-Siberian alder carr forests of Alnion glutinosae and the European broad-leaved floodplain forests of Alnion incanae: Carici elongatae-Alnetum glutinosae Schwickerath 1933 (alder carr forests on permanently waterlogged soils), Stellario-Alnetum glutinosae Lohmeyer 1957 (riparian alder vegetation on mesic to humid sites along small brooks), Piceo-Alnetum Mráz 1959 (submontane and montane oligotrophic spruce-alder forests on waterlogged habitats), Cardamino amarae-Alnetum incanae Šomšák 1961 (grey alder vegetation in spring fed areas) and Alnetum incanae Lüdi 1921 (submontane and montane streamside grey alder forests on mesic sites). They significantly (P < 0.05) differed in the Ellenberg's indicator values for nutrients, moisture, temperature and altitude. These environmental variables were also established by DCA analysis as underlying sources of variation in alder-dominated forest composition. Special attention was given to discussion of their syntaxonomy, nomenclature, floristic structure, ecological features and distribution

    Analysis of Demand for Marketing Activities

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    Budování systému řízení jakosti v ČSAD Ostrava, a.s.

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    Import 20/04/2006Prezenční výpůjčkaVŠB - Technická univerzita Ostrava. Ekonomická fakulta. Katedra (152) podnikohospodářsk
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