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Search Results: 1 - 8 of 8 matches for " Kolubara "
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Climate change and river discharge: case study Kolubara River, Beli brod hydrological gauge
Buri? Dragan,Stanojevi? Gorica,Lukovi? Jelena,Gavrilovi? Ljiljana
Glasnik Srpskog Geografskog Dru?tva , 2012, DOI: 10.2298/gsgd1201123b
Abstract: This paper analyzes climate change and its impact on river discharge. This issue is very well studied worldwide, but in Serbia so far has been poorly studied. The first part of the paper presents the views of two different opinions, those who favored anthropogenic impact on the increasing greenhouse effect, and those who say that this is due to natural factors. Most attention is paid to changes in temperature and precipitation patterns. Classification by the group of those who favor the promotion of natural phenomena is demonstrated through the analysis of river flow fluctuations in the hydrological gauge Beli brod located on Kolubara River.
Implementation of GIS in selection of locations for regional landfill in the Kolubara region
Josimovi? Bo?ko,Kruni? Nikola
Spatium , 2008, DOI: 10.2298/spat0818072j
Abstract: The selection of micro-location of the regional landfill represents the most sensitive step in spatial organization of the physical elements of the system for waste management1. The methodological approach in selection of location is necessary due to the sensitivity of the problem and has to be based on multi-criteria evaluation of the space. The implementation of GIS in the process is especially useful for significant advantages recognized by all participants in the process of selection of the best location. This paper presents possibilities, advantages and limits in use of GIS at specific examples, during the selection of micro-location for the regional waste landfill in the region of Kolubara. .
Analysis of conflicts in the use of space in mining basin “Kolubara”
?ivkovi? Marija
Journal of the Geographical Institute Jovan Cvijic, SASA , 2012, DOI: 10.2298/ijgi1203123z
Abstract: Consequence of impact of the surface exploitation on the environment is manifested in the form of physical, social, and environmental conflicts. The dominant conflicts of the Kolubara lignite basin space occurs between mining and agriculture, which indicates the importance of the process of rehabilitation and revitalization of contaminated land and its effective bringing to the original purpose. Another significant conflict appears between the existing settlements and mining, infrastructural, water management and other facilities, which are located in areas of mining works, so the solution is in their displacement. As consequence of development of the mining-energy industrial system there is an adverse impact on the environment, which is reflected in the pollution of air, land, groundwater and surface water. Ecological dimension of this conflict presents clear and limiting factor for the mine development, which directly points that the economic development of mining basin “Kolubara” is directed toward the rational exploitation of natural resources (coal, water, land, ect.). In the process of harmonization of these conflicts, it is necessary to take into account that the energy policy acts at the national level, as the public interest, and therefore has priority over all other interests.
NOx and SO2 emission factors for Serbian lignite Kolubara
Jovanovi? Vladimir V.,Komatina Mirko S.
Thermal Science , 2012, DOI: 10.2298/tsci120319055j
Abstract: Emission factors are widely accepted tool for estimation of various pollutants emissions in USA and EU. Validity of emission factors is strongly related to experimental data on which they are based. This paper is a result of an effort to establish reliable NOx and SO2 emission factors for Serbian coals. The results of NOx and SO2 emissions estimations based on USA and EU emission factors from thermal power plants Nikola Tesla Obrenovac A and B utilizing the Serbian lignite Kolubara are compared with experimental data obtained during almost one decade (2000-2008) of emissions measurements. Experimental data are provided from regular annual emissions measurement along with operational parameters of the boiler and coal (lignite Kolubara) ultimate and proximate analysis. Significant deviations of estimated from experimental data were observed for NOx, while the results for SO2 were satisfactory. Afterwards, the estimated and experimental data were plotted and linear regression between them established. Single parameter optimization was performed targeting the ideal slope of the regression line. Results of this optimization provided original NOx and SO2 emission factors for Kolubara lignite.
Aquatic macroinvertebrates of the Jablanica river, Serbia
Stefanovi? Katarina S.,Nikoli? Vera P.,Tubi? Bojana P.,Tomovi? Jelena M.
Archives of Biological Sciences , 2009, DOI: 10.2298/abs0904787s
Abstract: Research on the community of aquatic macroinvertebrates was carried out during 2005 and 2006 at four sampling sites along the Jablanica River, a right-hand tributary of the Kolubara River. Fifty-seven taxa were recorded in the course of the investigation. The most diverse group was Ephemeroptera, followed by Trichoptera and Plecoptera. Members of the Rhitrogena semicolorata group were the most abundant. Our results could be the basis for evaluation of the influence of damming of the Jablanica River on the status of its water and can serve as a model for studying the influ-ence of hydromorphological degradation of aquatic ecosystems.
The settlements of Ljig and Belanovica: Origin and development
Vemi? Mir?eta
Journal of the Geographical Institute Jovan Cvijic, SASA , 2006, DOI: 10.2298/ijgi0655087v
Abstract: Lig and Belanovica are two main settlements in the municipality of Ljig and the only ones which, according to the legal criterion, have a status of town settlements. They originated out of need for the smaller local centers in the regions of the District of Kolubara, with villages and hamlets dispersed or semi -dispersed in type. They originated as road settlements in the second half of the 19th century and at the beginning of the 20th century. Ljig developed at the major traffic artery Belgrade-Gornji Milanovac, at the crossroads where from the road branches off towards Mionica and Valjevo, while Belanovica originated at the old road Belgrade-Rudnik, which nowadays does not have the former significance and occupies the peripheral location in relation to Ibarska Highway. The settlements originated spontaneously along with passing from natural to the economy of goods in order to carry out certain economic function in relation to the territories which gravitate towards them. Belanovica was declared to be a small town in 1904. Ljig was declared in 1922 when it was formed as a traffic, trade and commercial center of the wider region. Ljig then obtained its first regulative plan, and later three more. The development of these settlements went differently into several phases, so that Ljig was formed as the primary, and Belanovica as the secondary center in the system of the settlements of the municipality of Ljig with certain spheres of influences on other settlements in the surroundings.
Evaluation of Kolubara lignite carbon emission characteristics
Stefanovi? Predrag Lj.,Markovi? Zoran J.,Baki? Vukman V.,Cvetinovi? Dejan B.
Thermal Science , 2012, DOI: 10.2298/tsci120215130s
Abstract: The revised Intergovernmental Panel on Climate Change (IPCC) guidelines for national greenhouse gas (GHG) inventories recommends that more comprehensive and thus more reliable characteristics of the local fossil fuels should be used for the national GHG inventory calculations. This paper deal with the carbon emission characteristics of low-calorific lignite recovered from the Kolubara open-pit mine. The samples of coal were carefully selected in order to cover the net calorific value, ash and water content of the broad spectrum of the quality of the raw lignite supplied to the Serbian thermal power plants. Correlation analysis of the laboratory analysis data gave a linear dependency of the net calorific value on the combustible content in the coal samples. Also, linear correlation between the carbon content and the net calorific value was found. The regression analysis of experimentally determined coal characteristics implies that the carbon emission factor is dependent on the net calorific value. For the subset of raw lignite samples with the net calorific value Qdr = 6 ÷ 10 MJ/kg, that is most representative for current and near future use for power generation in Serbian thermal power plants, the linear dependency CEFr (tC/TJ) = 34.407 - 0.5891×Qdr (MJ/kg) was proposed. Regarding the net calorific ranges of samples examined, the raw Kolubara lignite carbon emission factor is considerably higher than those recommended by IPCC Tier 1 method of 27.6 tC/TJ.
Aquatic invertebrates of the Ribnica and Lepenica Rivers: Composition of the community and water quality
Jovi? Aleksandra,Paunovi? M.,Stojanovi? Bojana,Milo?evi? Sne?ana
Archives of Biological Sciences , 2006, DOI: 10.2298/abs0602115j
Abstract: Results of investigating the community of aquatic invertebrates in the Ribnica and Lepenica Rivers (Kolubara River drainage area) are given in the present work. Forty-three taxa are recorded. In relation to other studied streams in Serbia, the investigated rivers are characterized by high diversity of macroinvertebrates. Cluster analysis indicates that the locality on the Lepenica stands apart from those on the Ribnica, which is a consequence of the difference of habitats found at them. Results of saprobiological analysis of the macrozoobenthos in the given rivers indicate that their waters belong to quality classes I and II.
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