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The sedimentation of drainage canals is a common process and its intensity depends on several geographical and hydrological factors. Drainage canal sediments are frequently polluted by heavy metals or other pollutants; they need to be periodically dredged and ultimately, have to be safely disposed of. Furthermore, pollution in smaller drainages may go undetected because under the Water Framework Directive (Directive 2000/60/EC), catchment areas < 10 km2 do not require monitoring. We investigated the hypothesis that water resources of small sub-catchments exposed to agricultural pollutants accumulate sediment for a longer period (several years) and severely enhance environmental risks. We analyzed the data on sediment mobility in drainage canals for a small lowland catchment in Croatia during 2013–2017. We conducted sediment transport modelling for actual precipitation episodes of a 10-year return period and design precipitation of a 50-year return period. The results indicated that sediments and associated copper pollution persist at the canal bottom for several years, which increases the risk of polluting groundwater and the environment in general. Only copper present at the maximum downstream section of the canal has the possibility of moving to the recipient stream and would only be detected in catchment areas bigger than 10 km2. We proved that smaller water bodies evaluated according to monitoring standards prescribed for the closest larger water can enhance environmental risks.
Marija Leko Kos; Lidija Tadić. The Field-Scale Investigation of the Low Mobility of Drainage Canal Sediments Polluted by Copper in Lowland Area of Croatia. Water 2021, 13, 677 .
AMA StyleMarija Leko Kos, Lidija Tadić. The Field-Scale Investigation of the Low Mobility of Drainage Canal Sediments Polluted by Copper in Lowland Area of Croatia. Water. 2021; 13 (5):677.
Chicago/Turabian StyleMarija Leko Kos; Lidija Tadić. 2021. "The Field-Scale Investigation of the Low Mobility of Drainage Canal Sediments Polluted by Copper in Lowland Area of Croatia." Water 13, no. 5: 677.
The majority of central Europe has a transitional climate type as a result of interactions between maritime and continental climates. This study focuses on the appearance and severity of drought in continental Croatia, which is part of the transitional climate area. It is situated between 15° E and 19° E. The altitude declines from west (167 m a.s.l) to east (88 m a.s.l.). The time period analysed is 1981–2018. Air temperature and precipitation data series from 13 meteorological stations were analysed. The analysis was done on an annual basis to define the spatio-temporal variability in air temperature and precipitation and their impact on drought episodes using the standardised evapotranspiration precipitation index. Different statistical methods (e.g., the nonparametric Mann–Kendall test and agglomerative hierarchical clustering) were used to examine the trend homogeneity of the analysed region. The analysis indicated inhomogeneity across the study area in terms of what significantly impacted the occurrence and severity of droughts. Drought occurrence is influenced more strongly by increasing trends in air temperature as compared with increasing or decreasing precipitation trends. The probability of severe drought occurrence was estimated using a copula function, and the results demonstrated that areas with higher precipitation could be more exposed to drought. Furthermore, the results demonstrated the impacts of specific regional characteristics on drought occurrence, severity, and duration, which indicates that small-scale research on droughts is more reliable.
Lidija Tadić; Tamara Brleković; Andreja Hajdinger; Save Španja. Analysis of the Inhomogeneous Effect of Different Meteorological Trends on Drought: An Example from Continental Croatia. Water 2019, 11, 2625 .
AMA StyleLidija Tadić, Tamara Brleković, Andreja Hajdinger, Save Španja. Analysis of the Inhomogeneous Effect of Different Meteorological Trends on Drought: An Example from Continental Croatia. Water. 2019; 11 (12):2625.
Chicago/Turabian StyleLidija Tadić; Tamara Brleković; Andreja Hajdinger; Save Španja. 2019. "Analysis of the Inhomogeneous Effect of Different Meteorological Trends on Drought: An Example from Continental Croatia." Water 11, no. 12: 2625.
The Croatian territory is divided into two big river basins. The continental part of the country belongs to the Danube River Basin, and the coastal area is part of the Adriatic Sea Basin. These two basins have completely different hydrological, topographical and geological characteristics including the vegetation cover as well. Related to their geographical diversities, pressures on water quality are also different. In the continental part of the country the main threats come from diffuse pollution of agriculture and farming. The Adriatic coast is mainly karst region vulnerable to any pollution. Besides the basic geographical characteristics, impacts on water quality depend on the significance of anthropogenic activities and sizes of catchment areas. Smaller rivers are more exposed to pollution of any kind than large rivers. Croatian lakes are also exposed to different sources of pollution. In recent time, climate change has also had some impact on water quality during periods of low discharges. Many scientific papers on surface water quality have been published during the last decades. Also, implementation of the Water Framework Directive, the Nitrate Directive, and national strategies has significantly decreased the pollution of surface waters. Much effort has been made in establishing a very extensive monitoring network together with legislation and measures to improve water quality status. Water quality is continuously improving as a result of comprehensive activities, especially the construction of sewage water treatment plants. In this chapter, the status of water quality of small rivers, large rivers and lakes in Croatia will be described.
Lidija Tadić; Marija Šperac; Barbara Karleuša; Josip Rubinić. Water Quality Status of Croatian Surface Water Resources. Springer Water 2019, 133 -158.
AMA StyleLidija Tadić, Marija Šperac, Barbara Karleuša, Josip Rubinić. Water Quality Status of Croatian Surface Water Resources. Springer Water. 2019; ():133-158.
Chicago/Turabian StyleLidija Tadić; Marija Šperac; Barbara Karleuša; Josip Rubinić. 2019. "Water Quality Status of Croatian Surface Water Resources." Springer Water , no. : 133-158.
Climate change assessment is usually based upon air temperature and precipitation changes on an annual and seasonal basis, but there are more levels to their significance as presented by parameters derived from these two basic parameters. In order to define their relevance for climate changes, the principal component analysis (PCA) was performed. In this case, ten meteorological parameters and climate change indicators were defined for two meteorological stations located in geographically completely opposite parts of the country; station Osijek is in continental region of Croatia, and Dubrovnik station is located in the Mediterranean region. Analyses were done for the period 1985–2016 on an annual and seasonal basis. All defined indicators present basic climate change characteristics on annual and seasonal basis as follows: precipitation sum, mean air temperature, air temperature sum, standard deviation of daily air temperature, maximum daily air temperature, maximum daily precipitation, number of days with precipitation > 30 mm, number of days with no precipitation, 1-month standardized precipitation index, and aridity index. In the first step, it was applied on the set of linear regression coefficients defined for 10 climate change indicators. During the second step, PCA was applied on the computed Mann–Kendall test statistic, ZMK.in order to determine the existence of significant temporal tendencies in the indicator values. The provided research proves PCA is a very useful tool for implementing this approach, particularly in the Mediterranean region which shows high sensitivity to many variables important for climate characterization.
Lidija Tadić; Ognjen Bonacci; Tamara Brleković. An example of principal component analysis application on climate change assessment. Theoretical and Applied Climatology 2019, 138, 1049 -1062.
AMA StyleLidija Tadić, Ognjen Bonacci, Tamara Brleković. An example of principal component analysis application on climate change assessment. Theoretical and Applied Climatology. 2019; 138 (1-2):1049-1062.
Chicago/Turabian StyleLidija Tadić; Ognjen Bonacci; Tamara Brleković. 2019. "An example of principal component analysis application on climate change assessment." Theoretical and Applied Climatology 138, no. 1-2: 1049-1062.
Irrigated agriculture has considerable impacts on the environment. To minimize negative effects and maximize positive effects, it is necessary to provide comprehensive analyses beyond the strictly technical domain. In this study, we apply a methodology for determining priorities in implementing irrigation plans using multi-criteria analysis methods on a specific case study area in the sub-catchment area of the Orljava River in Požega–Slavonia County, Croatia. Five potential irrigation areas (Orljava–Londža, Pleternica, Ovčare, Treštanovci, and Venje–Hrnjevac) were analyzed according to five selected criteria: environmental protection, water-related (four sub-criteria), social, economic, and time criteria with different criteria importance (weight). The aim of this study was to confirm the adequacy of using six multi-criteria analysis (MCA) methods (mostly used: PROMETHEE, AHP, ELECTRE TRI, and the less used: DEXi, PRIME, and PCA) in determining priorities for fulfilling irrigation plans, present models for preparation of the input data, apply certain methods, and compare the results on the selected case study area. The methods’ adequacy was confirmed during the research. Five of the six MCA methods identified the Ovčare area as the most appropriate for irrigation development (i.e., it has priority in implementing the irrigation plan). According to one (AHP) of the six methods, Orljava–Londža has more advantages over other areas. All MCA methods, except PCA, chose Venje–Hrnjevac as the least advisable (last to be implemented) alternative. Conclusions from this research confirm findings from recently published research regarding the application of MCA on water management problems.
Barbara Karleuša; Andreja Hajdinger; Lidija Tadić. The Application of Multi-Criteria Analysis Methods for the Determination of Priorities in the Implementation of Irrigation Plans. Water 2019, 11, 501 .
AMA StyleBarbara Karleuša, Andreja Hajdinger, Lidija Tadić. The Application of Multi-Criteria Analysis Methods for the Determination of Priorities in the Implementation of Irrigation Plans. Water. 2019; 11 (3):501.
Chicago/Turabian StyleBarbara Karleuša; Andreja Hajdinger; Lidija Tadić. 2019. "The Application of Multi-Criteria Analysis Methods for the Determination of Priorities in the Implementation of Irrigation Plans." Water 11, no. 3: 501.
Analyses of water level and discharge time series between 1960 and 2015 were made for five hydrological gauging stations in Croatia. All characteristic minimum, average, and maximum values of these two parameters have shown a decreasing trend with two exceptions in the most upstream part of the river where three dams were constructed. Extreme hydrological events, floods and droughts were also analyzed. High water levels, which were a great threat in the past, are better controlled by dykes today, but they still endanger the area along the confluence of the Drava and Mura and the lowermost section due to the backwater effect of the Danube River. Droughts or periods of low discharges are becoming a more and more serious problem in the last 15 years, but, according the standardized streamflow index for detected drought severity, there is no clear increasing trend in drought frequency.
Lidija Tadić; Tamara Brleković. Hydrological Characteristics of the Drava River in Croatia. Governance in Transition 2018, 79 -90.
AMA StyleLidija Tadić, Tamara Brleković. Hydrological Characteristics of the Drava River in Croatia. Governance in Transition. 2018; ():79-90.
Chicago/Turabian StyleLidija Tadić; Tamara Brleković. 2018. "Hydrological Characteristics of the Drava River in Croatia." Governance in Transition , no. : 79-90.
This paper deals with the surface water quality of a small catchment area of the Karašica and Vučica rivers based on the analysis of water physical and chemical parameters according to the national Decree on Water Quality Standards (2013). Water samples were collected and analysed monthly at five sampling stations situated along the watercourses in the period between 1998 and 2015. Analysed parameters were pH, chemical oxygen demand (COD-Mn), five-day biochemical oxygen demand (BOD5), nutrients: nitrate compounds (nitrates and total nitrogen), phosphorus compounds (orthophosphates and total phosphorus), and the content of heavy metals. The obtained results indicate a water quality status between moderate and good, depending on the parameter and sampling station.
Ana Amić; Lidija Tadić. Analysis of Basic Physical-Chemical Parameters, Nutrients and Heavy Metals Content in Surface Water of Small Catchment Area of Karašica and Vučica Rivers in Croatia. Environments 2018, 5, 20 .
AMA StyleAna Amić, Lidija Tadić. Analysis of Basic Physical-Chemical Parameters, Nutrients and Heavy Metals Content in Surface Water of Small Catchment Area of Karašica and Vučica Rivers in Croatia. Environments. 2018; 5 (2):20.
Chicago/Turabian StyleAna Amić; Lidija Tadić. 2018. "Analysis of Basic Physical-Chemical Parameters, Nutrients and Heavy Metals Content in Surface Water of Small Catchment Area of Karašica and Vučica Rivers in Croatia." Environments 5, no. 2: 20.
Methodology for determining priorities in implementing irrigation plans using multicriteria analysis method DEXi is applied on the specific case study area in the sub-catchment area of river Orljava in Požega-Slavonia County, Croatia. Five potential irrigation areas are analyzed according to five selected criteria: environmental protection, water-related (4 sub-criteria), social, economic and time criteria with different criteria importance (weight). The aims of this paper are: confirm the adequacy of using DEXi method when determining priorities in fulfilling irrigation plans; present the model for preparation of the input data; apply the method and give feedback on the application.
Barbara Karleuša; Andreja Hajdinger; Lidija Tadić. Use of Multicriteria Analysis Method DEXi to Define Priorities in Implementation of Irrigation Plans. Proceedings 2018, 2, 663 .
AMA StyleBarbara Karleuša, Andreja Hajdinger, Lidija Tadić. Use of Multicriteria Analysis Method DEXi to Define Priorities in Implementation of Irrigation Plans. Proceedings. 2018; 2 (11):663.
Chicago/Turabian StyleBarbara Karleuša; Andreja Hajdinger; Lidija Tadić. 2018. "Use of Multicriteria Analysis Method DEXi to Define Priorities in Implementation of Irrigation Plans." Proceedings 2, no. 11: 663.
Dario Marić; Ivan Hrskanović; Tamara Dadić; Lidija Tadić. FLOOD MODELING OF THE VUKA RIVER SECTION UPSTREAM OF ITS CONFLUENCE WITH THE DANUBE RIVER. Elektronički časopis građevinskog fakulteta Osijek 2016, 62 -70.
AMA StyleDario Marić, Ivan Hrskanović, Tamara Dadić, Lidija Tadić. FLOOD MODELING OF THE VUKA RIVER SECTION UPSTREAM OF ITS CONFLUENCE WITH THE DANUBE RIVER. Elektronički časopis građevinskog fakulteta Osijek. 2016; ():62-70.
Chicago/Turabian StyleDario Marić; Ivan Hrskanović; Tamara Dadić; Lidija Tadić. 2016. "FLOOD MODELING OF THE VUKA RIVER SECTION UPSTREAM OF ITS CONFLUENCE WITH THE DANUBE RIVER." Elektronički časopis građevinskog fakulteta Osijek , no. : 62-70.
The city of Osijek is situated on the right bank of the Drava River about 20 km away from its confluence with the Danube River. This good position was a prerequisite for its development, but throughout history, many floods caused by the Drava and Danube rivers have endangered Osijek and its citizens. Significant shortening of the river length by cutting meanders, river regulation structures together with the reduction in the natural floodplain were done during the nineteenth century. In the period between 1921 and 2013, there were 31 maximum annual water levels so high that flood warning systems were declared. The results of proposed hydrological analysis prove the presences of dominant Danube River backwater influences on flood occurrence in Osijek, especially in the last 40 years due to the decreasing trend of Drava River water levels and discharges and increasing trend of the Danube River water levels and discharges. The flood probability analysis shows (using a copula function) a very small probability of coincidence of maximum water levels in the Drava and the Danube, which is very important information for future flood risk management.
Lidija Tadić; Ognjen Bonacci; Tamara Dadić. Analysis of the Drava and Danube rivers floods in Osijek (Croatia) and possibility of their coincidence. Environmental Earth Sciences 2016, 75, 1238 .
AMA StyleLidija Tadić, Ognjen Bonacci, Tamara Dadić. Analysis of the Drava and Danube rivers floods in Osijek (Croatia) and possibility of their coincidence. Environmental Earth Sciences. 2016; 75 (18):1238.
Chicago/Turabian StyleLidija Tadić; Ognjen Bonacci; Tamara Dadić. 2016. "Analysis of the Drava and Danube rivers floods in Osijek (Croatia) and possibility of their coincidence." Environmental Earth Sciences 75, no. 18: 1238.
Analysis of small catchment area in Croatian lowland with its hydrological characteristics in the period between 1981 and 2014 was carried out in order to define significance of change in hydrological and meteorological parameters (precipitation, air temperatures, and discharges) and water balance components (deep percolation and potential evapotranspiration). There was no significant land use change in the observed period, so all changes in hydrological processes can be considered to be without human impact in the last 35 years. Application of RAPS (Rescaled Adjusted Partial Sums) on all data series distinguished two subperiods with different length but the same behaviour. The first subperiod was a period characterised by the decrease, starting in 1980 and finishing between 1991 and 1995, while the second one was a period characterised by the increase of parameters in all analyses, starting between 1991 and 1995 and finishing in 2001. In comparison to the analysis of climate change impacts per decade, this approach is much more appropriate and gives insight into variations throughout the entire observed period. The most variable but not significant parameters are precipitation and discharges, especially in the second subperiod which has a major impact on occurrence of hydrological hazards such as droughts and floods and makes great pressure and responsibility on water management system.
Lidija Tadić; Tamara Dadić; Marija Leko-Kos. Variability of Hydrological Parameters and Water Balance Components in Small Catchment in Croatia. Advances in Meteorology 2015, 2016, 1 -9.
AMA StyleLidija Tadić, Tamara Dadić, Marija Leko-Kos. Variability of Hydrological Parameters and Water Balance Components in Small Catchment in Croatia. Advances in Meteorology. 2015; 2016 ():1-9.
Chicago/Turabian StyleLidija Tadić; Tamara Dadić; Marija Leko-Kos. 2015. "Variability of Hydrological Parameters and Water Balance Components in Small Catchment in Croatia." Advances in Meteorology 2016, no. : 1-9.
Danko Fundurulja; Lidija Tadić; Tamara Dadić. Waste management in the Osijek-Baranja County. Pollack Periodica 2014, 9, 141 -152.
AMA StyleDanko Fundurulja, Lidija Tadić, Tamara Dadić. Waste management in the Osijek-Baranja County. Pollack Periodica. 2014; 9 (Supplement):141-152.
Chicago/Turabian StyleDanko Fundurulja; Lidija Tadić; Tamara Dadić. 2014. "Waste management in the Osijek-Baranja County." Pollack Periodica 9, no. Supplement: 141-152.
Kopački Rit Nature Park is part of the Danube River natural floodplain and one of the last oases of wild life in the Danube River Basin. Due to its extraordinary value, it was inscribed on the list of Wetlands of International Importance in 1993. More than 2,000 species have been registered in this area, which consists of lakes, canals, grassland, marshland and forests. Even the number of investigations which have been performed on its biological and ecological features, hydrological and water resources characteristics, as a prerequisite for ecohydrological analyses, are still rather unknown in the scientific community. Mainly the Danube River and partly the River Drava cause flooding of Kopački Rit and inundations enter the area from both the northern and southern parts. Results of hydrological and meteorological analysis show a decreasing trend of both mean and minimum, annual water levels in the Rivers Drava and Danube (respectively 1.8 and 1.38 cm/year). These reductions in water level can reduce the replenishment periods of Kopački Rit Nature Park. In addition, a significant rise of mean annual air temperature and consequently water temperature (data 1988–2011) may be causing increasing evapotranspiration and loss of water within Kopački Rit. But an encouraging counteracting finding is that, the results of frequency analysis show, even a discharge of 5-years’ return period on the River Danube inundates 70 % of the Danube floodplain and Kopački Rit Nature Park.
Lidija Tadić; Ognjen Bonacci; Tamara Dadić. Dynamics of the Kopački Rit (Croatia) wetland floodplain water regime. Environmental Earth Sciences 2013, 71, 3559 -3570.
AMA StyleLidija Tadić, Ognjen Bonacci, Tamara Dadić. Dynamics of the Kopački Rit (Croatia) wetland floodplain water regime. Environmental Earth Sciences. 2013; 71 (8):3559-3570.
Chicago/Turabian StyleLidija Tadić; Ognjen Bonacci; Tamara Dadić. 2013. "Dynamics of the Kopački Rit (Croatia) wetland floodplain water regime." Environmental Earth Sciences 71, no. 8: 3559-3570.