scholarly journals Trends of mean annual river discharges in the Zapadna Morava river basin

2017 ◽  
Vol 97 (2) ◽  
pp. 19-45
Author(s):  
Marko Langovic ◽  
Sanja Manojlovic ◽  
Zoran Cvorovic

Zapadna Morava River basin covers a surface of 15850 km2, which is approximately 18% of the territory of the Republic of Serbia. In its basin, 38 active surface stations are registered. The goal of this paper is the trend analysis of the mean annual river discharges in the Zapadna Morava River basin and their noticing in a longer series of time, as well as determining their intensity. Fifty years period of time (1965 - 2014) is taken for a time series. Because there is no empirical data for mean annual discharge values for all stations for the given period, the number of the hydrological stations, which are processed in this paper, is reduced to 21. Mann-Kendall test has been used for noticing the trend, Sen test has been used for estimating the curves inclinations of the linear trend, while Pettitt?s test has been used for determining the turning point of change. Also, classification of the years by water richness has been performed in this paper in order to determine wet and dry periods. For the needs of identification of medium watery, wet and dry years, the combined method has been used on the data examples from representative stations in the basin. Based on the processed data and the obtained results, it has been established that the most rivers in the basin of the Zapadna Morava River have a slightly decreasing trend of the flow values, whereby the change of the trend is not significant. On the most rivers, the change period has begun in the early eighties of the past century. On a large number of profiles, the watery period was appearing in the beginning of eighties, while the dry season is characteristic for the period from 1990 to 1994.

2016 ◽  
Vol 1 (14) ◽  
Author(s):  
Milan Trifković ◽  
Goran Marinković ◽  
Boban Ilić ◽  
Goran Pejičić ◽  
Jelena Lazić

The Municipality of Velika Plana has been taking serious steps when it comes to initiating landconsolidation projects which help realize the land reclamation projects in the simplest way. Whit theaim of obtaining the base for carrying out land reclamation projects, this work deals with and presentsthe survey of the hydrographic features of Municipality of Velika Plana, as well as, water regime andthe river basin of the Velika Morava River. Based on measuring data obtained at Ljubicevski most,water gauge survey station we have performed and presented the analysis of the distinctive annual flowover a longer period of time as well as the analysis related to the changes in parameters which occur onan annual basis. On the basis of performed analysis we have been able to determine the amounts ofwater for irrigation available in the Velika Morava River basin at the territory of Velika Plana, whichwas the main focus and objective of this research.


2003 ◽  
Vol 55 (3-4) ◽  
pp. 33P-34P
Author(s):  
Ivana Zivic ◽  
Z. Markovic ◽  
Miloje Brajkovic

2013 ◽  
Vol 67 (2) ◽  
pp. 357-364 ◽  
Author(s):  
Nebojsa Veljkovic

The subject of research is elaboration and evaluation of indicators of sustainable development in the field of river basin management. Aggregate indicator entitled Ecoregion Sustainable Development Index is identified by calculation of average value by the procedure of leveling of proportion changes of three key indicators (demographic emission index, water quality index, industrial production index). Developed aggregate indicator of sustainable development is calculated and analyzed for South Morava river basin in Serbia, for the period from 1980 to 2010. The beneficiaries of these indicators are the experts from the field of environmental protection and water management who should use it for elaboration of reports directed towards the creators of economic development policy and river basin management planning. Elaborated according to the given methodology, the indicator Ecoregion Sustainable Development Index is available for the decision makers on the national level, internationally comparative and it provides the conditions for further elaboration and application.


1996 ◽  
Vol 33 (4-5) ◽  
pp. 127-135 ◽  
Author(s):  
D. Beránková ◽  
J. Ungerman

The diversity of natural conditions as well as the industrial and agricultural character of the landscape are responsible for changes influencing the share of point and nonpoint sources of pollution in the Morava River basin. Nonpoint sources of pollution were specified on the basis of data on agriculture, forestry, erosion, suspended solids, water quality parameters, mass flow of nutrients and atmospheric deposition. The relationship between concentrations of nitrates and application rates of mineral nitrogen fertilizers in the lower part of the Morava River basin was significant. In the longitudinal profile of the Morava River concentrations of mineral nitrogen and total phosphorus were specified and mass flow calculated by characteristic discharge. Changes of political system in 1989 in the Czech Republic initiated dynamic development of the state agricultural policy with consequences for the intensity of nonpoint pollution. Mainly in the field of plant and animal production some influences were evidently reduced. Consumption of industrial fertilizers was minimized to 13 of the former level and livestock population was also significantly decreased. Although privatization in agriculture is practicaly finished, there are not many positive changes in the field of large-area land use and structure of plots. The process of soil erosion still causes damages of land and pollution of surface waters.


2021 ◽  
Vol 26 (2) ◽  
pp. 40-53
Author(s):  
R. G. Dzhamalov ◽  
◽  
K. G. Vlasov ◽  
V. Y. Grigorev ◽  
K. G. Galagur ◽  
...  

Introduction. This article addresses the long-term dynamics of Oka River basin pollution. The basin serves as the main source of drinking water and a receiver of wastewater from a number of regions in European Russia. Methods. We assessed the water quality by 12 main hydrochemical indicators and constructed maps of their distribution with a breakdown into two periods (1990–1999 and 2000–2017). The anthropogenic load along the section in the city of Gorbatov was determined. Spearman’s rank correlation coefficients and their statistical significance were calculated. Results. For 18 gauging stations with 25 and more years of observations, the magnitude of the linear trend (%/year) was estimated using the Theil–Sen estimator, and the statistical significance of the linear trend (Mann–Kendall test) was assessed for individual stations and the entire basin, using a modified Walker test. The runoff of pollutants from the urban territory was estimated between the sections upstream and downstream the cities in the upper reaches of the Oka River basin. The volumes of pollutants in the Oka River from the cities of Orel, Belev and Kaluga were determined for the period of 1990–2017. The calculations of the pollutant runoff, performed between the sections upstream and downstream the cities, made it possible to determine the role of the cities in the formation of point pollution in the upper reaches of the Oka River. The anthropogenic load along the length of the river in terms of the influx of chemicals varies from “low” to “high”. The load is largely due to the intake of pollutants since water bodies and watercourses serve as receivers of both treated and insufficiently treated wastewater from various enterprises. Conclusion. Almost throughout the basin, the water quality is under stress. The statistical analysis showed the existing relationship between a certain type of land use and the concentration of substances in surface waters. It was revealed that the self-cleaning capacity of the river is sufficient to prevent pollutants from accumulating along it.


Geografie ◽  
2000 ◽  
Vol 105 (2) ◽  
pp. 141-154
Author(s):  
Antonín Vaishar ◽  
Pavlína Hlavinková ◽  
Karel Kirchner ◽  
Jan Lacina

In 1997 disastrous floods, unparalleled since meteorological and climatic measurements have been carried out, took place in the catchment of the Morava river and other Moravian rivers. The long-term impacts of the above-mentioned flood event on the landscape and society have been examined in four selected model areas with different natural and economic characteristics. Within the natural system, the long-term impacts include changes in riverbeds, landslides and changes in the biota. Within the social system, the most significant adverse impacts include the long-term damage to the psychical health of those affected by the flood. The main causes of the flood damage are connected with the formation of the settlement pattern during the period of industrialisation and urbanisation. The main methods of flood protection include the relocation of structures outside inundated areas, technical control and the adaptation to flood risks.


1996 ◽  
Vol 33 (4-5) ◽  
pp. 341-347
Author(s):  
Hana Mlejnková ◽  
Zdenka Žáková

The research results of water supply reservoirs and their tributaries in the Morava River basin showed the important role of the biological and microbiological investigations by monitoring the influence of diffuse pollution on the reservoir's water quality. Our report brings the critical evaluation of the possibility to use some microbiological and biological methods by monitoring of diffuse pollution, it also includes some practical results received from monitoring the streams and reservoirs within the Morava River basin (in the frame of research projects of the T. G. Masaryk Water Research Institute, branch office Brno).


2018 ◽  
Vol 621 ◽  
pp. 1289-1299 ◽  
Author(s):  
Jovana Jovanović ◽  
Stoimir Kolarević ◽  
Aleksandra Milošković ◽  
Nataša Radojković ◽  
Vladica Simić ◽  
...  

2021 ◽  
Vol 19 (3) ◽  
pp. 261-278
Author(s):  
Borislava Blagojevic ◽  
Vladislava Mihailovic ◽  
Jovan Blagojevic ◽  
Dragan Radivojevic

Eighteen low flow indicators are considered in the research of sixteen hydrological stations in the Juzna Morava river basin. The indicators are estimated by statistical analysis and grouped as hydrological and environmental indicators. A crosscorrelation between all indicators is assessed. Environmental flows at hydrologic stations are obtained by the GEP method. The environmental low flow indicators are transferred to two small ungauged basins by regression with physiographic characteristics. The adjustment of environmental flows at ungauged basins is performed according to locations of the donor stations in the hydrogeological regions of the studied area.


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