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The subject of this paper is the assessment of the influence of the construction and design elements on traffic safety at level crossings in undermined areas. The first part is dedicated to level crossings in the Czech Republic and accident rates at level crossings in the Moravian-Silesian Region. The following part describes the in situ experiment, which was conducted at selected crossings with different types of safety arrangements, intensity of traffic and traffic moments. Our results were compared with the res...

The aim of our proposals for soil sampling regarding mesofauna study in soils from greenhouses or polytunnels is motivated by the high soil heterogeneity and large variability of easy exchangeable soil properties such as water content, soluble salts distribution especially under drip irrigation and local fertilization. The intensive technology for growing vegetables or flowers, high irrigation requirements and the high soil moisture favors, in short time the degradation of morphological, physical, chemical propert...

Arid ecosystems occupy large areas in the world and perform important ecological functions to maintain the biodiversity and stability of natural ecosystems. In this article, we present the results of the research on the change in the activity of catalase and dehydrogenases when the soils of the arid ecosystems of the Southern Russia are polluted by zinc: dark chestnut, chestnut, light chestnut, brown semidesert and sandy soil. Zinc was added to the soil in the amount of 300, 3,000 and 30,000 mg/kg (1, 10 and 100 m...

The paper deals with the negative effects of mining on the transport network in the Moravian-Silesian area, especially is focused on problems reflected in construction layers of transport-related structures (railways, roads, area storage and handling areas). With the extraction downturn, the sources and objectives of transport have changed including the characteristics of transport flows of all traffic roads and connections. Various measures for all transport modes situated in Moravian-Silesian region are identifi...

The paper deals with the influence of mining works on the transport in the area mainly the structural layers of transport-related engineering structures elements as railways, roads, railway crossings and the overall transport system. Long-term underground coal mining is usually associated with environmental impacts in the Moravian-Silesian Region in the Czech Republic. There are two types of undermined areas in mentioned region: District of Ostrava where the mines were closed and the mining phenomena are considere...

The researches have emphasized that on the improved sandy soils the maize yields (the average of fertilizer rates) is higher when the corn is cropped within a crop rotation than in monoculture (table 1, figure 1). The applying of nitrogen fertilizers on improved sandy soil, along with phosphorus ones is an endorsed measure for increasing maize yield (table 2, figure 2). The influence of crop rotation and fertilizer applying has recorded high yield outputs with all experimented crop rotations as compared with the m...