WuhanUniversityofTechnologyDepartmentofSpatial InformationandPlanningSchoolofResourcesandEnvironmentEngineeringSedimentconnectivity withinriverside-morphologicalprocesses coupling framework foridentifying finesedimentsourceswithinJiuRiverBasin(Romania)GabrielaAdinaMOROSANU-MITOSERIUInstituteofGeographyoftheRomanianAcademy,Romaniagabriela.adina.m@gmail.com
1 Sediment connectivity within riverside - morphological processes coupling framework for identifying fine sediment sources within Jiu River Basin (Romania) Gabriela Adina MOROȘANU-MITOȘERIU Institute of Geography of the Romanian Academy, Romania gabriela.adina.m@gmail.com Wuhan University of Technology Department of Spatial Information and Planning School of Resources and Environment Engineering
Sediment connectivitywithinriverside-morphologicalprocesses coupling framework for identifying fine sediment sourceswithin Jiu River Basin(RomaniaOUTLINEIntroduction:Context,Objective.Studyarea:MethodologyResultsanddiscussion:Conclusion
Sediment connectivity within riverside - morphological processes coupling framework for identifying fine sediment sources within Jiu River Basin (Romania) OUTLINE • Introduction: Context, Objective • Study area • Methodology • Results and discussion • Conclusion
IntroductionGeneralcontextIdentifyingandquantifyingthesourcesoffinesedimentsinariverbasiniskey tothe efficient management of hydro-sedimentaryresources.!Slope(upstream)&Riverbank/FloodplainRiverchannelsConveyorbeltmodel(downstream)connectivity degree is a key and difficult(Ferguson, 1981)factor to quantify in sediment yield studies at river basinscales.ObjectiveTo evaluate the actual potential of a watershed system for sediment production and transfer,taking into accountvarious categories of geomorphic processes and anthropogenic factors,that escape the initial analysis ontopographiccriteria,basedonwhichthedegreeofsourcetosinksedimentconnectivityoftenresults.3
Slope (upstream) & Riverbank/ Floodplain River channels (downstream) connectivity degree is a key and difficult factor to quantify in sediment yield studies at river basin scales. 3 Objective To evaluate the actual potential of a watershed system for sediment production and transfer, taking into account various categories of geomorphic processes and anthropogenic factors, that escape the initial analysis on topographic criteria, based on which the degree of source to sink sediment connectivity often results. ! Identifying and quantifying the sources of fine sediments in a river basin is key to the efficient management of hydro-sedimentary resources. Introduction General context Conveyor belt model (Ferguson, 1981)
Study areaRep.otdoldovaMaVadeni-Tg.JiuSerbiaReservoirsAhtirudes(m)M4Budga050100200KmJiu River Basin:-SWRomaniaDanubetributary,CarpathianwatershedLegend-Area~10,080km2MainRivers-ComplexnaturalCoal extraction areasElevations (m)and(geomorphologyHigh:2519&geomorphicfactors)(coalLow : 23anthropogenicmining,reservoirs&dams)sediment051020Kmyield drivers
4 Study area Coal extraction areas Jiu River Basin: SW Romania Danube tributary, Carpathian watershed Area ~10,080 km2 Complex natural (geomorphology and geomorphic factors) & anthropogenic (coal mining, reservoirs & dams) sediment yield drivers
CernaP>Anthropicpression:BistritnMotruNReservoirsRValea lui:Jalesijalovan2km35V50Sohodo460ClocotiseueusMotruPn75+R.VateaRHMareR3KR.lismanaMotrusorP425OrleaVb-R5BrebinaLegendRiversC) Biu River Basin10ReservoirsRivers12Elevation (m)Hydropowerplants2519-23Dams-Jiu11R.WaterdiversionsDaXO15rivet41Hydrometric Stations
Anthropic pression: Reservoirs Vija Clocoti ş Motru Tismana Valea lui Iovan R. Tismana R. Brebina R. Motru R. Jaleş (Sohodol) 1 3 2 4 5 6 7 8 9 10 11 12 13 14 15 475 650 425 460 535 a b Rivers Reservoirs Hydropowerplants Dams Water diversions Hydrometric Stations 2km