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The trans-boundary area between the Europe Union and other countries is highly susceptible to changes in water quality and variations in the potential pollution load that could influence its eco-systems significantly. The Neris (Viliya) River is one of the biggest surface water bodies in Lithuania and Belarus with an ecologically important area protected by international legislation. The study was aimed at evaluating the impacts of integrated pollution on water quality of the Neris River taking into account different storm-water flows and ecological scenarios. For this purpose, qualitative and quantitative statistical evaluation was set up and calculation was done; different integrated pollution loads of the catchment area were estimated. The evaluation considered a decrease in river discharge due to changes in the regional storm-water flow and technological development that should lead to the growing covered surface and a reduction in the untreated storm-water flows. The obtained results indicated that, in the case of storm-water treatment, the total nitrate and phosphate concentrations will decrease, while in the cases of changes in combined suspended solid, the concentration of nutrients will decrease. Thus, a trans-boundary storm-water treatment plant of the Viliya River is required as it should eliminate pollution accumulation and restore its acceptable environmental status. A coordinated international project for the entire catchment of the Neris (Viliya) River based on the specifications and requirements of the EU Water Framework Directive (EU 2000) should be developed and implemented. Subsequently, ecological river-use policies should be established at the international level, which should offer considerable perspectives for the sustainable development of the area.
Marina Valentukevičienė; Lina Bagdžiūnaitė-Litvinaitienė; Viktoras Chadyšas; Andrius Litvinaitis. Evaluating the Impacts of Integrated Pollution on Water Quality of the Trans-Boundary Neris (Viliya) River. Sustainability 2018, 10, 4239 .
AMA StyleMarina Valentukevičienė, Lina Bagdžiūnaitė-Litvinaitienė, Viktoras Chadyšas, Andrius Litvinaitis. Evaluating the Impacts of Integrated Pollution on Water Quality of the Trans-Boundary Neris (Viliya) River. Sustainability. 2018; 10 (11):4239.
Chicago/Turabian StyleMarina Valentukevičienė; Lina Bagdžiūnaitė-Litvinaitienė; Viktoras Chadyšas; Andrius Litvinaitis. 2018. "Evaluating the Impacts of Integrated Pollution on Water Quality of the Trans-Boundary Neris (Viliya) River." Sustainability 10, no. 11: 4239.
The relevance of research on removing surface water from the drained areas has increased along with a rising number of drainage systems. A large part of inlets for surface water are installed in the ditches of road safety zones and / or terrain drops in safety zones where flowing surface water accumulates. The practice of constructing and rebuilding roads in Lithuania shows that each new route of the road section most frequently passes through the drained area and redistributes runoff characteristics of that sector. Each subgrade passing through the watercourse of surface water is a local dam for surface runoff. The surface water that has accumulated in road safety zones have to be drained to avoid damage to road structures and from the flood in the drained roadside areas. The article discusses the efficiency of hydro technical measures such as inlets for surface water in the mining area and highlights the specificities of hydraulic calculations when the complete drainage system for surface water Inlet–Water Drainage Line is integrally assessed. The paper also proposes a methodology for the hydraulic calculations of the system Inlet–Water Drainage Line. The article examines the condition of water inlets having the F-5 or PN-42 structure. The findings of the research carried out in 2017 demonstrate that only 15.3% of inlets for surface water were completely clean, 45.2% of the inlets were found fully contaminated and 39.5% of those were partially silted up. Thus, a clear upward trend towards polluting the crosssectional areas of inlets for surface water with soil and grass root plants and a strong downward trend towards clean cross-sectional areas of inlets for surface water are observed. 22.6% of inlets for surface water were found damaged by farmers using tillage machinery.
Valentinas Šaulys; Oksana Survilė; Mindaugas Klimašauskas; Lina Bagdžiūnaitė- Litvinaitienė; Andrius Litvinaitis; Rasa Stankevičienė; Aja Tumavičė. ASSESSING THE HYDRAULIC CONDUCTIVITY OF OPEN DRAINAGE FOR SURFACE WATER IN ROAD SAFETY ZONES. The Baltic Journal of Road and Bridge Engineering 2017, 12, 174 -180.
AMA StyleValentinas Šaulys, Oksana Survilė, Mindaugas Klimašauskas, Lina Bagdžiūnaitė- Litvinaitienė, Andrius Litvinaitis, Rasa Stankevičienė, Aja Tumavičė. ASSESSING THE HYDRAULIC CONDUCTIVITY OF OPEN DRAINAGE FOR SURFACE WATER IN ROAD SAFETY ZONES. The Baltic Journal of Road and Bridge Engineering. 2017; 12 (3):174-180.
Chicago/Turabian StyleValentinas Šaulys; Oksana Survilė; Mindaugas Klimašauskas; Lina Bagdžiūnaitė- Litvinaitienė; Andrius Litvinaitis; Rasa Stankevičienė; Aja Tumavičė. 2017. "ASSESSING THE HYDRAULIC CONDUCTIVITY OF OPEN DRAINAGE FOR SURFACE WATER IN ROAD SAFETY ZONES." The Baltic Journal of Road and Bridge Engineering 12, no. 3: 174-180.
Oksana Survilė; Valentinas Šaulys; Lina Bagdžiūnaitė-Litvinaitienė; Rasa Stankevičienė; Andrius Litvinaitis; Mindaugas Stankevičius. Assessment and Research of River Restoration Processes in Regulated Streams of Southeastern Lithuania. Polish Journal of Environmental Studies 2016, 25, 1245 -1251.
AMA StyleOksana Survilė, Valentinas Šaulys, Lina Bagdžiūnaitė-Litvinaitienė, Rasa Stankevičienė, Andrius Litvinaitis, Mindaugas Stankevičius. Assessment and Research of River Restoration Processes in Regulated Streams of Southeastern Lithuania. Polish Journal of Environmental Studies. 2016; 25 (3):1245-1251.
Chicago/Turabian StyleOksana Survilė; Valentinas Šaulys; Lina Bagdžiūnaitė-Litvinaitienė; Rasa Stankevičienė; Andrius Litvinaitis; Mindaugas Stankevičius. 2016. "Assessment and Research of River Restoration Processes in Regulated Streams of Southeastern Lithuania." Polish Journal of Environmental Studies 25, no. 3: 1245-1251.
Andrius Litvinaitis; Lina Bagdžiūnaitė-Litvinaitienė; Elvyra Šinkovič. Land Use Influence on Water Pollution: the Research ofŠalčia River Catchment. The 9th International Conference "Environmental Engineering 2014" 2014, 1 .
AMA StyleAndrius Litvinaitis, Lina Bagdžiūnaitė-Litvinaitienė, Elvyra Šinkovič. Land Use Influence on Water Pollution: the Research ofŠalčia River Catchment. The 9th International Conference "Environmental Engineering 2014". 2014; ():1.
Chicago/Turabian StyleAndrius Litvinaitis; Lina Bagdžiūnaitė-Litvinaitienė; Elvyra Šinkovič. 2014. "Land Use Influence on Water Pollution: the Research ofŠalčia River Catchment." The 9th International Conference "Environmental Engineering 2014" , no. : 1.
Lina Bagdžiūnaitė-Litvinaitienė; Andrius Litvinaitis. Anthropogenic Activity Impact on the Small River Catchment Water Quality. The 9th International Conference "Environmental Engineering 2014" 2014, 1 .
AMA StyleLina Bagdžiūnaitė-Litvinaitienė, Andrius Litvinaitis. Anthropogenic Activity Impact on the Small River Catchment Water Quality. The 9th International Conference "Environmental Engineering 2014". 2014; ():1.
Chicago/Turabian StyleLina Bagdžiūnaitė-Litvinaitienė; Andrius Litvinaitis. 2014. "Anthropogenic Activity Impact on the Small River Catchment Water Quality." The 9th International Conference "Environmental Engineering 2014" , no. : 1.
Dėl pastaruoju metu vis dažniau pasitaikančių ekstremalių upių nuotėkio režimo pokyčių mokslinėje literatūroje aptariami nuotėkio formavimosi ypatumai. Atliekami darbai nagrinėjant klimato pokyčius, taip pat daug dėmesio skiriama žemėnaudos struktūroms. Šiame straipsnyje išsamiai išnagrinėjus upių baseinų litologinę struktūrą atskirais priekrančių ruožais siekiama įvertinti upių nuotėkio formavimosi ypatybes. Baseinų litologinis veiksnys buvo skaičiuojamas remiantis Lietuvos kvartero M 1 : 200 000 ir upių M 1 : 50 000 žemėlapiais ArcGis programine įranga. Nagrinėjamų teritorijų išsamesnei litologijos įtakai analizuoti išskirti 0–50 m, 50–200 m, 200–500 m, 500–800 m, 800–1000 m ir >1000 m iki takoskyros ruožai, skaičiuojant atstumu metrais nuo kranto. Atrinkti ir ištirti 8 tipingos litologinės struktūros (smėlingi, priemolingi, molingi) upių baseinai. Analizuoti 1960–2007 laikotarpio metai, kuriais iškrito daugiausia kritulių (iki 33 % tikimybės), bei nustatyti debito ir kritulių ryšiai, o suformavus hidromodulį – ir litologinės struktūros. Tyrimai parodė, kad daugiau negu 50 % smėlių plotai baseinuose, atskirose baseinų dalyse ar ruožuose atvirkščiai proporcingai veikia upės nuotėkį. Didesni (daugiau kaip 12 km2) vienalyčiai molingi plotai nuotėkį veikia dvejopai: tiesiogiai – 11,78–55,17 % ir atvirkščiai proporcingai – 69,63–98,55 % kritulių tikimybės laikotarpiu. Esant mažiau kaip 70 % priemolio upės baseino, baseino dalies ar ruožo ploto, kritulių ir nuotėkio priklausomumo savybės yra panašios kaip smėlingų baseinų grupių, o per 70 % – kritulių ir nuotėkio ryšys panašus kaip molinguose baseinuose. Raktažodžiai: litologija, upių nuotėkis, krituliai, baseinas
Andrius Litvinaitis; Lina Bagdžiūnaitė-Litvinaitienė. Lietuvos upi? basein? litologijos ?taka hidrologiniam režimui. Energetika 2011, 57, 1 .
AMA StyleAndrius Litvinaitis, Lina Bagdžiūnaitė-Litvinaitienė. Lietuvos upi? basein? litologijos ?taka hidrologiniam režimui. Energetika. 2011; 57 (1):1.
Chicago/Turabian StyleAndrius Litvinaitis; Lina Bagdžiūnaitė-Litvinaitienė. 2011. "Lietuvos upi? basein? litologijos ?taka hidrologiniam režimui." Energetika 57, no. 1: 1.