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Wetlands, in the transformed agricultural landscape, play an important role in preserving and enriching biodiversity. The study covered 35 mid-field wetlands. Floristic and phytosociological investigations allowed us to determine the species composition of the plant communities present in the analysed wetlands. The mapping of existing plant communities was performed on each studied object. A route method was used to determine the ranges of plant patches using the GPS location system. Within the scope of each ident...

In recent years, special attention is paid problems of ensure the rare-earth products of various high-tech fields. Currently rare metal raw materials are used in the chemical industry, electronics, information technology, communication technology and others.The primary task of this work is to investigate the possibility of using methods of flotation for the concentration of target components from dilute aqueous solutions. The aim of the work was to research of the recovery of rare earth elements (REE) by adsorptio...

This study shows how material and immaterial flows can be analysed. The basis for the analysis is the equality principle and its mathematical expression the EUROPE model (the model for Efficient Use of Resources for Optimal Production Economy) which creates economic incentives to improve nature, advance the technological standard and increase profits. Particularly, the flows of cargo transportation, mega city supplies, long distance water transportation and various substance flows are described. The theoretical fi...

The mining sector is currently undergoing a transformation. The reforms result from the difficult economic situation in mining companies, which is a consequence of the low price of natural gas, substantial coal supplies in ports and power plants storage sites as well as the growing energy production from renewable sources. Unfortunately, a drop in prices does not cause a decrease in the cost of raw material production. Such a situation causes that Polish coal is not competitive on international markets. The ongoin...

The relevance of the issue under study lay in the opportunity to predict climate change on the planet in the context of ever-increasing greenhouse gas emissions from natural and anthropogenic sources. Will it result in global warming or global cooling? The paper aimed at revealing correspondence between greenhouse gas emissions into the atmosphere and temperature change. The leading approach to the problem study was a method of physicochemical (thermodynamic) simulation with the use of the ?Selector-S? software wi...

Under the current conditions of the functioning of agribusiness entities, forecasting of agribusiness development is of great importance. First of all, it is related to the fact that the Republic of Mari El belongs to the agroindustrial region. In addition, the enhancement of the integration processes is observed at the present time in the Republic of Mari El and new forms of integration of the economic entities of agribusiness are formed due to these processes. The formation and development of the competitiveness...

The article considers a formal and functional description of international timber transportation logistical system as a distributing system. The formal representation of the international timber transportation process requires the consideration of a big number of factors affecting transportation. In addition, the transportation process takes place on the territory of several states and depends on the transport network significantly. In this regard, the use of the system analysis method will be most effective. A se...

Environmental problems show their relevance at the present stage of gradual depletion of resources and increasing demands on product quality and the state of the environment, which in turn entails a change in the requirements for management systems that currently need to include quality management systems, environmental management systems environment, occupational safety and health management systems, social responsibility requirements, which are reflected in international standards ISO 9000, ISO 14 000, OHSAS 180...

Salt water intrusions of marine origin are a major cause of contamination for coastal fresh water aquifers. They are generated mainly by the uncontrolled exploitation of fresh water in pumping stations from coastal areas. In Romania, such marine intrusions have occurred in the southern part of Black Sea's coastline, in the area of Vama Veche and Costine?ti resorts, contaminating the main aquifers which are hosted within Sarmatian (late Middle Miocene) lumachelic and oolitic limestones. Fresh water exploitation man...

Renewable-energy sources are considered to be the energy that is collected from sources that may be regenerated in a lifetime. The renewable-energy sources branch out in five types: wind power, hydropower, solar energy, geothermal energy and bio energy. However, in this paper, we are analyzing the water, solar and wind, since those three are the most exploited in Romania. Wind power refers to produce electric power, by mechanical powered generators when air flows through wind turbines. Alternatively, to fossil fue...

Task of advancing geonavigation becomes an actual topic when constructing a horizontal trunk of oil and gas reservoir of geophysical studies of horizontal wells. Advancing geonavigation allows to predict intersection of trunk with boundaries of oil-gas reservoir. Mathematical model of unsteady electromagnetic field of a horizontal conductive plate is approximated by the known plane ???? and excited by a horizontal magnetic dipole; Plane ???? is transformed into a vertical half-plane ???? by dynamic method of mirro...

Waste management is an important element of environmental protection in each country. Vegetable and fruit waste are produced in every place in the world, hence it is necessity to manage it. Legal regulations in Poland forbid the storage of this waste which were selectively collected. Therefore, it is necessary to looking for other methods of their management. Agricultural biogas plants are an important source of renewable energy. In last years, in Europe, the most important substrate used for biogas production was...

The contribution is focused on asphalt mixtures in wearing courses of pavements from the point of view of their performance based, road user properties and traffic noise emissions. In the article there are described the options and examples of objectification of pavement surfaces influence on traffic noise. The author's inform about the condition of pavement with wearing course from SMA 11 (Stone Mastic Asphalt) asphalt mixture which was constructed on expressway R1 from grade-separated junction of Zvolen in the d...

The energy sector, among others, is one of the strategic sectors for any country regardless the degree of development. Being one of the most dynamic sectors due to the exponential need for energy, in most cases is unfriendly for the environment due to the conventional methods of extraction that are more affordable than those unconventional. The Romanian energy sector is no exception. In these conditions, the main objective of this paper is to evaluate the renewable energy potential of the Romania territory, namely...

Last century was an apogee of drilling operations in all around the world. Petroleum industry has managed to achieved large progress in technology which contribute to minimize costs and time of drilling and completion operations but above all this, to increase production of oil and gas from the reservoirs. Rapid development also bring with itself potential problems with integration of the well during production processes and workovers. Changes in temperature conditions connected with treatments of the well result ...

The paper discusses the comparative analysis of crude oil extracted from the core material and bituminous oil using the method of gas-liquid chromatography. The method involves partition of hydrocarbon mixtures in the columns under the dynamic conditions. The output is recorded as a series of peaks - each one representing a compound in the mixture passing through the detector. Gas-liquid chromatography is a powerful tool in analyzing complex petroleum mixture components very close in their composition even when th...

Environmental legislation and the one ruling the mining industry require the ecological rehabilitation of areas affected by mining activities, which are currently under way, with the cessation of productive activities. From this point of view, one of the most active areas of exploitation, especially of construction and ornamental rocks, is located in Tulcea County (more precisely, there are 50 quarries occupying a total area of approximately 792 ha). We also have to bear in mind that the largest one, Turcoaia (130...

We present the results of the use of geo-information management of geographically distributed systems for the comparative assessment of environmental criteria for alternative routes of the Russian section of the Nord Stream ? 2 marine gas pipeline. For the planned anthropogenic impact, we consider the complex of biotic and abiotic parameters of ecosystems allocated in the zones of influence (ZI), using the system analysis as a theoretical basis. In the land part of ZI, we allocate water protection zones and coasta...

The Thar Desert is a part of the arid zone of north-western India and one of the major deserts in the subtropical belt, encompassing a total geographical area of 196 000 km2. Ongoing desertification with intense erosional actions removing unconsolidated surface cover to form desert pavement on one side, and co-acting mass sediment transfer with sand dunes formations on another side, as well as ground salinisation due to progressing regional aridification (mean annual precipitation 150?500 mm) pose major threats to...

The East Carpathians Bend region includes a multitude of natural discharges of saline groundwater. Some of these outflows - such as the mud volcanoes at Beciu and a couple of springs at Lep?a - have previously been shown to be sensitive to the intense seismic activity which developed in that area. Yet no attempts have so far been made for exploring relationships that possibly existed between those brines chemical characteristics, and the local geo-structural setting: the latter consists of a stack of successively ...

This study examined the spatial relations of the selected metals in stream sediments tributary of the Oltet River in longitudinal profile, along the entire length (185 km) in relation to geology, lithology and anthropogenic activities. Differences in regional geology from the northern to the southern of the Oltet River Basin are reflected in stream sediment geochemistry. The Olte? River crossing crystalline formations belonging to the Danubian Domain represented by metamorphic rocks (schist, gneisses, mica-schiste...

Geochemical map of western and souther part of Serbia covers an area of about 30 000 km2 and also basins of rivers Ibar, Western Morava, Kolubara, Drina and Grand Morava. Representative samples from relevant profiles were collected according to WEGS (Western European Geochemical association). Samples were collected at the A- horizon at a depth of 15-20 cm from the ground surface; OB-overbank sediments at the depth of 80-100 cm and S-modern stream sediment. Geochemical mapping of lithological members was performed ...

The data on the geological position, the features of the mineral and material granitoids composition of the Borschovochny massif, which is localized in the northeastern part of the Eastern Transbaikalia, are given. According to geotectonic zoning, granitoids of the massif are collision formations that arose as a result of the collision of the Siberian craton and the Argun microcontinent in the Late Jurassic time. The granites of the Borschovochny massif correspond to rocks of normal alkalinity with potassium (and ...

In the eastern part of the Siberian platform, Phanerozoic magmatism manifested itself in various tectonic structures. It was related, in Middle Paleozoic and Lower Triassic times, to rifting processes, and in Late Paleozoic ? Early Mesozoic times ? to the initiation and development of traps. Varying geodynamic regime of magma generation resulted in a geochemical variety of rocks. The Permo-Triassic traps are characterized by a low content of incompatible elements, insignificant REE totals (60-70 ppm), a moderate d...

The Holy Cross Mountains are one of the oldest mountain ranges in Europe. The south-eastern part of the Holy Cross Mountains (the south-central part of Poland) is characterized by high geodiversity. Sediments from Proterozoic to Paleozoic (Cambrian, Ordovician, Devonian and Cambrian) are discovered on the surface. The younger sediments (from Permian to Cretaceous) occur in the west, north and northwest part. The whole area is covered by Quaternary sediments. Selected objects, deposits and high valuable geotouristi...

Geophysical surveys are used frequently in the early stages of the landslide study, associated with the traditional drilling. But for monitoring the slide are used only the bore holes equipped with various sensors and expensive devices for movement measuring, which cannot be recovered and are destroyed once the slippery mass moves again. To continue the monitoring of the next stage of the landslide involves new drillings and a new set of devices. Finally the cost of monitoring will be very high. Initially, the Bre...

There have occurred significant changes in the world political stage over the last more than 20 years. Events of the recent decades have changed territory, economic, social, natural resource and environmental situation in Russia. Nowadays up to 70% of territory of the Russian Federation, nearly half of northern land areas of the globe are regarded as territory of the nordic region and the Arctic region. The notion ?Arctic region? (?Arctic zone?) has no distinct definition, it is frequently equated with the notion ...

The paper gives an overview of the geographical scope of petroleum reserves, mentioned in article titles from seven journals over the recent five years 2013-2018: (1) Journal of Petroleum Science and Engineering; (2) Marine and Petroleum Geology; (3) Petroleum Geoscience; (4) Journal of Petroleum Geology; (5) Journal of Unconventional Oil and Gas Resources; (6) Petroleum Exploration and Development; (7) Petroleum Science. The samples included 100 titles from each journal (700 in total). According to the gained res...

The Techirghiol Lake, with a total surface of 1,462 ha, a length of 7,500 m and a maximum depth of 12 m, is situated on the NW Black Sea coast, south to the Constanta town. The lake is located in SE Dobrogea, a region that displays the highest density of lakes in Romania. These lakes were formed during the Quaternary, in relation with the Black Sea level fluctuations. Due to the low-level waters of the Lake Techirghiol, relative to the Black Sea one, the salty marine waters periodically invaded the lake. Genetical...

The Sayak ore district is located in the north-eastern part of the Balkhash region and contains industrial molybdenum-copper and gold mineralization, which is represented mainly by skarn deposits, as well as smaller deposits and ore occurrences of hydrothermal-vein, porphyry and karst types. They are located mainly in the eastern part of the Sayak graben-syncline, which is composed of volcanic-sedimentary rocks of the Middle and Upper Paleozoic age. The Upper Paleozoic complex is accompanied by granitoid intrusion...

Comparison of mining risks component was carried out on example of Ukrainian BIF deposits. The study object was one of deposits within Kryvyi Rih region which is exploited for iron concentrate and pellets production. We analyzed main geological, mining and business risks in international and national practices of risk assessment. It was defined that main components of international risk assessment of iron ore deposits is a risk associated with productivity, price and currency factors. For domestic deposits positiv...

Carbonate reservoirs are important exploration targets from the perspective of hydrocarbon and, also, groundwater reserves. In this respect, the most important aquifer system in Romania is located in South Dobrogea region, comprising two distinct aquifer complexes: a deeper one, mostly under pressure, hosted in fractured/fissured and karstified limestones and dolomites of Late Jurassic - Early Cretaceous age and a shallower one, mostly unconfined, hosted in Sarmatian (late Middle Miocene) lumachellic and oolitic l...

The study area is located in the northern and western parts of Moldavian Platform, the oldest platform unit of the Romanian territory and representing the margin of the East European Platform. Two hydrocarbon systems are recognized in the Moldavian Platform: a thermogenic system of Paleozoic age and a biogenic system of Miocene age. The Miocene biogenic system comprises significant natural gas fields (including dry gas with more than 98% methane), reservoired especially in Sarmatian (late Middle Miocene) deposits,...

In the East Carpathians Bend region (Romania), a salt formation was deposited during the lowermost Miocene (Aquitanian-Burdigalian). Subsequently, the salt reached present-day structural positions by diapiric piercing of the overlying sedimentary deposits. As a result, a multitude of isolated ? although quite large - outcrops of salt diapirs are encountered nowadays. In this complex geological setting, a great number of salt karst phenomena occur, generating dolines, sinkholes and salt caves. The surface topograph...

In the implementation of the characterization, i.e. the determination of the relevant mechanical and physical characteristics of the municipal waste landfill, it is necessary to define the optimal scope of the investigative works. The criterion of an optimum is determined by the minimum volume of planned actions with maximizing their performance. Generally, exploratory drillings give the so-called dotted data, with a regularly questionable quality of undisturbed and even disturbed samples. At the same time, they a...

Land contamination generated by non-metallic mining activities through inappropriate handling and storage of industrial wastes and mine waters that pass through these sites. The contaminated land is not just the surface of the soil but also the underground and underground water. This contamination has the potential to damage the human factor and the environment. For qualitative quantification of the activity carried out in the Brad mining perimeter, we carried out an assessment of the impact of pollutant emissions...

In order to preserve its competitiveness and retain the current number of work places in the European steel industry as well as to meet stricter emission standards, the implementation of industrial symbiosis activities is an unavoidable measure. The objective of this paper is to identify the best industrial symbiosis enabling practices done in the steel industry worldwide. For this purpose, a review of successful industrial symbiosis case studies in the steel industry was performed. For the sake of comparability, ...

Globalization phenomena is spreading more and more around the world. This has a major impact on food safety as food chains have become increasingly complex. This paper studies the benefits and drawback from a globalization standpoint regarding food safety in the developing countries and aims to find ways that might overcome the challenges consumers deal with. The research is based on data extracted from European Union reports, Eurostat Database, International Trade Centre Database and Romanian National Institute o...

In the world community, some experience has already been gained in the development of the "green economy". The Baltic States are in search of rational forms of combining objective indicators and criteria for applying them in the planned plans for the development of a "green" economy, taking into account the specifics of the economy and the availability of the resource-resource potential of the Baltic region countries. The sectors of the green economy that have a high green potential and play a major role in divers...

Nowadays there is increased emphasis on reviving the rural areas and the small businesses are considered to be the engine. This study examines how the rural areas entrepreneurship spirit can be stimulated through increasing awareness in regards to the environmental impact of green activities. The aim is to find ways of converting the rural traditional economy into a sustainable one by creating different types of initiatives for the population such as organic farming, renewal energy alternatives, eco-tourism and re...

This work aimed to define when high ice content in permafrost sediments becomes a leading factor of coastal dynamics of Kara Sea region and to determine the place of this parameter among other factors of coastal retreat. For three key sections of the Kara Sea coast (Kharasavey Cape, sites of underwater pipeline crossing of the Baydaratskaya Bay coasts), spatial variability of ground ice distribution was investigated in the field. Changes in ice content and the presence of massive ice (wedge ice, massive ice beds ?...

Countries on the eastern coast of the Baltic Sea ? Estonia, Latvia, Lithuania and Poland ? experienced significant changes in the political and economic structure during the 20th/21th centuries. The aim of the research, first of all, is to assess the competitiveness of the Latvian economy compared with the other countries on the eastern coast of the Baltic Sea and, secondly, to evaluate the activities carried out in 2009-2016 in order to increase the competitiveness of the national economy. The Global Competitiven...

Poland has been long harnessing hydraulic energy despite the absence of supportive conditions for hydropower development. According to the Energy Regulatory Office, there were 721 hydropower plants in Poland in 2014. Electric power generation in small and medium-sized hydropower plants is characterized by minor fluctuations, in particular in comparison with other sources of renewable energy. In a given period, the observed changes in power output result mainly from variations in operating conditions. Hydropower re...

Hungary, like other eastern European countries, has suffered from an energy deficit for the past several years. Energy consumption exceeds energy production, and the country remains dependent on mostly imported fossil fuels such as oil and gas. Renewable energy usage is mostly limited to hydro and solar power generation. Government, industry and academia have paid relatively little attention to geothermal energy as a source of heat and power generation. This study aims to identify and examine the feasibility of ha...

The rich mining activity in the city of Ostrava (18th century ? July 1991) has so far reminded many areas, buildings, and head frames. This article will focus on mining sites the headframes of which have survived up to the recent time, thus completing the historical and industrial history of Ostrava. This is then used in tourism, where the mining tradition is one of the possibilities of promoting the city as an interesting industrial site. It is no accident that the Lower V?tkovice Area with the Hlubina Mine Area ...

Renewable sources of energy are supported in all the EU countries including Czech Republic. The landscape potencial of Central Europe enables generally the exploitation of wind energy rather than other sources. One of the most important problems is the location of the energetic power stations as the landscape in the Czech Republic is densely inhabitated and used for complex functions including agriculture, industry, communications, ecological functions etc. That is why the construction of any "wind mill" requires ...

The study of heavy metals (HMs) in plants increases in importance with years because of the enhancing anthropogenic impact. HMs arriving in plants from the soil and air are capable of accumulating in plant tissues in large amounts and passing along the trophic chain into animal and human organisms. Enterprises of energetic, metallurgical, and ore-mining industries are sources of environmental contamination with HMs. For example, the Novocherkassk energetic enterprise releases 1% of total pollutants into the atmosp...

Pontus Euxinus, the Black Sea today, was since ancient time playground of human activities, of which the most important is the trading navigation, whose beginning coincides with the Greek colonization started in the 7th century BC. The colonies and settlements founded along the coast were connected in ancient time mainly by nautical trade routes running along the shores. The case study area is located in the shallow waters of the Black Sea, in front of the sandbank system that today separates the Razelm-Sinoie lac...

Commercial field development of high-viscosity oil and natural bitumen presents a global issue nowadays due to increase in hydrocarbon consumption, changes in structure of oil reserves with the increasing dominance of heavy and extra-heavy crudes, and development of innovative technologies of production and processing of natural bitumen. The estimated probable bitumen reserves are 790-1000 billion tons, much greater than reserves of light and medium viscosity oil. Bitumen processing technologies include production...

The paper deals with actual testing of available hiking and sports mobile applications for their use in the terrain. Testing was carried out in individual steps, starting with the analysis of existing hiking and sports mobile applications and the selection of suitable mobile applications for the field research.The contribution also includes the overview of the most downloaded iOS and Android free hiking and sports mobile applications in category Health and Fitness in Slovakia. Hiking and sports mobile applications...