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Digital elevation model and satellite images an assessment of soil erosion potential in the Pcinja catchment

Author(s): Ivica Milevski,Slavoljub Dragićević,Stanimir Kostadinov / Language(s): English Issue: 2/2007

Pcinja is large left tributary of Vardar River (135 km long, 2877,3 km2 catchment’s area), which drainages surface waters from northeastern Macedonia, and small part of southeastern Serbia. Because of suitable physical-geographic factors (geology, terrain morphology, climate, hydrology, vegetation coverage, soil composition, and high human impact), some parts of the catchment’s suffer significant erosion process. For this reason, it is necessary to research properly spatial distribution of erosion, then influence of physical and anthropogenic factors for the intensity of soil erosion, related erosion landforms (with morphology, genesis, evolution, soil erosion protection etc.). Earlier researches in the area have been performed generally with combination of cartographic and classic field analysis. But in last decades, there are new possibilities available like satellite images and digital elevation models. In this work has been presented the methodology of utilization of satellite images and DEM for erosion research, with analysis and comparisons of outcome data.

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Морфометријска анализа вртача на Мирочу употребом GIS-а

Author(s): Tamás Telbisz,László Mari,Jelena Ćalić / Language(s): Serbian Issue: 2/2007

Mt. Miroc doline karst evolution and its determining factors such as geology, relief and structure are analysed using GIS tools. The 3064 dolines found in a 123 km2 area support the use of different statistical methods. Doline density (24.9 km-2) is relatively high and mean doline area (1697 m2) is relatively small. Both frequency analysis and field evidence suggest that doline karst evolution of the area is at a relatively young stage. Spatial distribution of the dolines is mainly determined by the Upper Jurassic limestone, and slope angle less than 12°. Furthermore, the anticline limbs and axis as well as the SW-NE trend fault lines are also in connection with doline density. However, doline long axis orientation is tpyically NW-SE, which is not in accordance with the observed rupture systems. Therefore, this issue requires further research.

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Прорачуни унутаргодишње расподеле отицаја и минималних протицаја Великог Рзава за потребе регионалног водоводног система “Рзав”

Author(s): Marko Urošev / Language(s): Serbian Issue: 2/2007

Minimum water discharge and seasonal flow calculations of Veliki Rzav at Arilje have been conducted for the purposes of regional water supply system “Rzav”. For the first time for this hydrological station minimum water discharges have been calculated by frequency curves, parameters of which have been determined by method of moments. Also for the first time in Serbia seasonal flow was calculated using “composing method”. Analysis presented in this paper can be used for exploitation and planning of upcoming water management activities in the regional water supply system “Rzav.

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Температурне прилике у јулу 2007. године као екстремна климатска појава у Србији

Author(s): Goran Anđelković / Language(s): Serbian Issue: 2/2007

According to other parts of the world extreme climatic phenomenon have passed beside Serbia. However, some of them appeared in our country. Beside extreme climatic phenomenon, extreme climatic seasons have great significance for geographic environment. During the 2007 July was has had high temperatures long lasted. The absolute maximal temperature has been achieved in Serbia. In Smederevska Palanka was registered 44.9°C. Those events deserves great scientific attention. in this paper we have considered in detailed those temperature conditions as unsuitable climatic phenomenon, especially in relation to range of extremity of temperature in Serbia.

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Висинска дистрибуција као фактор неких просторно- демографских промена у развоју насеља општине књажевац

Author(s): Sanja Pavlović,Marijana Jančić / Language(s): Serbian Issue: 2/2007

The paper analyzes dependence of spatial-demographic tendencies in the development of 86 settlements of Knjaževac community on their hypsometric distribution. It deals with absolute and relative changes of total amount of population, agricultural population, as well as the populational size of settlements. The whole municipality is characterized with the concentration of the population in the lower hypsometric zones, settlements becoming smaller and, with the exception of the town centre, negative demographic developmental tendencies. Statistical analysis done on a period between 1971-2002 shows the dependence of majority of analyzed indexes on their altitude zone.

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Методолошка грешка утврђивања концентрације суспендованог наноса на нашим рекама

Author(s): Slavoljub Dragićević,Predrag Manojlović,Jugoslav Nikolić / Language(s): Serbian Issue: 1/2007

Recent methodology of sampling and establishing silt deposit concentration in Serbian rivers is associated to numerous deficiencies. Daily concentrations of this type of river deposit on the most of the hydrological gauges were obtained on the base of only one measurement, which takes into consideration the matter of representative ness of those samples. Taking the samples of deposit in one point on the profile is little bit problematic because of dispersion of the obtained results. Very important matter is the question of choice of the sampling location. This analyses of data may lead to serious spots in calculating total carried deposit. From the above mentioned reasons, we decided to take precise measurements of silt deposit concentration as well as to establish methodological spots of measurements. The results of these measurements are analyzed and presented in this paper.

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Possible connection between Danube river discharge variability and solar activity

Author(s): Vladan Ducić,Jelena Luković,Nina Nikolovna / Language(s): English Issue: 1/2007

Relations between discharge changes and solar activity are very complex and this is the reason why the obtained results are often contradictory. In this paper we tray to explore possible relation between Danube river discharge elements and parameters of solar activity. The best result has been found between flow index and latitude of sunspots. According to literature we propose possible mechanism of solar activity influence on the discharge.

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Оцена стања квалитета површинских вода и загађења у сливу реке Лепенице

Author(s): Ana Milanović,Jelena Kovačević-Majkić / Language(s): Serbian Issue: 1/2007

Lepenica river basin is axis of economic and urban development of Šumadija region. However, because of disorderly water regime of Lepenica river and its tributaries, it appears several hydrologic problems on this territory, as example insufficiency of drinking and irrigating water by one cite, and floods and torrents (especially in Kragujevac valley) by other cite. Particular problem is water quality and pollution in river basin. In this paper will be analyzed water quality of Lepenica river and artificial lakes, built in its river basin, according to the data of Republic Hydrometeorologic Institute of Serbia. Also, it will be present polluter cadastre in river basin.

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Промене интензитета ерозије у сливу Љига -утицај антропогеног фактора-

Author(s): Slavoljub Dragićević,Milomir Stepić / Language(s): Serbian Issue: 2/2006

According to new field investigations as well as mapping of erosion in Ljig river basin we have found out that its intensity has changed in regard to period of 40 years ago. The most expressive changes were noticed in Ljig river basin. As we have not noticed changes in physico-geographical factors the cause of the intensity decrease might be only influenced by indirect anthropogenic factor. Processes of growing old and decrease of rural population, migration village-town, marginalization of agriculture and decrease of cattle reserves caused the changes of land utilization. Agriculture areas were becoming overgrown with growing wild vegetation, which restrained gradually considerable expressed processes of erosion in the past.

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Просторна дистрибуција отицаја у сливу Темштице

Author(s): Sanja Mustafić / Language(s): Serbian Issue: 2/2006

The values of specific runoff are defined by model of multi factorial analyses combined with method of “grid” system. Elemental unit is presented by unit field of 0.5x0.5km. Such multi regression model of high statistical significance enables analyses of specific runoff from many aspects. First aspect is establishing the amount and distribution of water for every altitude zone in total runoff creating. Second is presented in its altitude distribution in dependence of altitude existing of some lithologic-hydrologic complex; at the and from aspect from spatial regionalization it is possible to perceive water distribution within the river basin. By that we could realize water condition of some differential and contrast areas. Application of above mentioned methods as well as processing of each relevant parameter for studying these kinds of problems are carried out in GEOMEDIA program.

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Научни опус Јована Цвијића посвећен источној Србији

Author(s): Stevan M. Stanković,Sanja Pavlović / Language(s): Serbian Issue: 1/2006

The scientific creation of Jovan Cvijić (1865–1927) is big and heterogeneous. The famous scientist was occupied in physical and social geography with the same success. His scientific papers about Serbia are very important. Serbia and Balkan peninsula were the subject of his systematic investigations for forty years. The bibliography of Jovan Cvijić's scientific papers about Serbia and Balkan peninsula is rich and citated very frequently.

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Промене параметара протицаја Дунава код хидролошке станице Оршава у периоду 1841-2000

Author(s): Vladan Ducić,Jugoslav Nikolić,Slavoljub Dragićević / Language(s): Serbian Issue: 1/2006

The aim of this investigation was to declare long-term trend of discharge, over its different parameters. Hydrological station Orsova is selected not just because of series’ length but also reliabilities of observation. By analyzing data, we exclude possible local and regional anthropogenic influences on discharge. Trend analyzes of all parameters of Danube discharge near Orsova hydrological station in the period of 160 years show increase of discharge and decrease of extremeness.

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Хидролошка прогноза великих вода у сливу Лепенице и заштита од поплава

Author(s): Ana Milanović / Language(s): Serbian Issue: 1/2006

Lepenica river basin territory has became axis of economic and urban development of Sumadija district. However, considering Lepenica and its tributaries disorderly river regime, it is noted water insufficient for water supply and irrigation, while on the other hand, this area is suffering big flood and torrent damages (especially Kragujevac valley). The paper presents flood problems in river basin, maximal water level forecasts and flood control measures, taked until now. It is also suggested some of possible solutions, in the aim of effective flood control.

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Квалитет вода у сливу Голијске Моравице

Author(s): Marko Urošev / Language(s): Serbian Issue: 1/2006

River basin Golijska Moravica is rich in water, therefore it’s water is used for water supply of towns and industry not only in it’s basin, but in the region as well. This paper presents the status of water quality in main rivers of the basin, and recommends measures for protection of water quality.

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Физичко-географска својства Сувоборског краја са аспекта развоја шљиварства

Author(s): Jelena Kovačević-Majkić,Milovan Milivojević / Language(s): Serbian Issue: 1/2006

Plum production is one of the most developed branches of agriculture in Suvobor region, and with that characteristics, it is of crucial importance for the development of this area. Especially on southern slopes of Mt. Suvobor, there are favourable natural conditions for plum production. According to geological base (considerable areas of serpentinites) hydrogeological characteristics and regional hydrological conditions are different in various parts of Suvobor region. From sustainable development point of view, it is necessary to take into consideration the results of hydrological researches about real amounts of water, water balance and possibilities of their usage in order to improve the plum production. Water quality, according to the possible influence of serpentinites, could be a limiting factor for plum growing development. Making water objects register and estimation of water quality, favourablly contribute to improvement of this branch of agriculture.

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Потенцијали за развој бањског туризма у подручју планине Цер (западна Србија)

Author(s): Mirko Grčić,Ljiljana Grčić / Language(s): Serbian Issue: 1/2006

Because of their particularities, thermal and mineral springs at the foothill of Cer Mountain deserve special analysis. This is the reason we wrote this article, aiming to take reader’s attention to the touristic potentials of the spa zone of Cer Mountain and possibilities for its perspective development. From the medical and excursion- recreational tourism point of view, there is a possibility for combining the spa tourism with the complementary values of Cer Mountain.

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Морфолошко - хидролошка еволуција понорнице Пуљића поток

Author(s): Radislav Tošić,Čedomir B. Crnogorac / Language(s): Serbian Issue: 2/2005

The karst morphology of the river basin of Mala Ukrina is characterised, apart from superficial and ground karst forms, by karst hydrography, which gives to this area a specific hydrological mark. In this part of the basin, as a hydrological peculiority of limestone plain, we can single out the lost river Puljića potok, which is the water most lost river in the south rim of the Panonion basin of the Republic of Srpska that has been discovered so far.

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Колебање температуре ваздуха на простору Старе планине у инструменталном периоду

Author(s): Vladan Ducić,Milan Radovanović,Boško Milovanović / Language(s): Serbian Issue: 2/2005

In this paper are presented the results of research, considering on air temperature variability in Stara planina area. In southeast part of researched area it is noticed negative trend in the last 50 years of XX century, according to data of IPCC for Southeast Europe. Emphasized air temperature increase in summer period in almost stations is not pointed on dominant influence of anthropogenic greenhouse effect.

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Врњачка бања: 170 година од првe научне анализе лековите воде

Author(s): Stevan M. Stanković / Language(s): Serbian Issue: 2/2005

Vrnjačka Banja (spa) is one of the most visited balneological centers in Serbia. Vrnjačka Banja has a long tradition considering its material traces from the Roman time. The first chemical analysis of medicinal water was done in 1835. Then its basic properties significant for medicine were defined. Since then till nowadays Vrnjačka Banja is the first one between other spas in Serbia considering the number of visitors. There were 163.000 tourists (1985) and 1.415.00 overnight stays (1986). These data about record values were never realized later on.

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Налазишта и могућности коришћења термалних вода у Дебрцу

Author(s): Mirjana Gajić,Snežana Vujadinović / Language(s): Serbian Issue: 1/2005

The geothermal waters in Debrc are in karstified triassic limestone and dolomite. Maximal measured temperature is 58°C on the depth of 1000 m. By using geothermal energy from thermal waters of Debrc, is possible intensive agri and aqua culture production, especially organic food according to world ecologic standards, as well as toplification of Debrc.

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