Danube Floodplain A 3.3 Floodplain assessment on selected tributaries D 3.3.1 Map of floodplains on selected tributaries D 3.3.2 List of floodplains, their characteristics, restoration/preservation potential and associated measures D 3.3.3 Recommendations for floodplain assessment on tributaries including the description of implemented methods and classification criteria October 26, 2020 Activity Leader: DRSV – Slovenian Water Agency, Ljubljana, Slovenia WP WP3: Floodplain evaluation Activity Activity 3.3 Deliverable D 3.3.1 Map of floodplains on selected tributaries D 3.3.2 List of floodplains, their characteristics, restoration/preservation potential and associated D 3.3.3 Recommendations for floodplain assessment on tributaries including the description of implemented methods and classification criteria Activity-leader DRSV Deliverable prepared by Jurij Krajčič, Marjan Jarnjak, DRSV Involved partners All partners from the countries with pre- selected tributaries – VUVH, MRBA, KOTIVIZIG, JCI, CW, MWF, NARW, NIHWM, DRBD, USZ and BOKU Connection with other deliverables/outputs WP5 2 Table of Contents 1. Introduction .................................................................................................................................... 8 2. Map of floodplains on selected tributaries ..................................................................................... 10 2.1. Methodology ......................................................................................................................... 10 2.1.1. Krka .................................................................................................................................... 10 2.1.2. Yantra ................................................................................................................................ 21 2.1.3. Desnăţui ............................................................................................................................. 27 2.1.4. Morava .............................................................................................................................. 30 2.1.5. Tisza (HU) ........................................................................................................................... 34 2.1.6. Tisa (RS) ............................................................................................................................. 38 2.1.7. Sava (RS) ............................................................................................................................ 41 2.2. Results ................................................................................................................................... 46 2.2.1. Krka .................................................................................................................................... 46 2.2.2. Yantra ................................................................................................................................ 48 2.2.3. Desnăţui ............................................................................................................................. 49 2.2.4. Tisza (HU) ........................................................................................................................... 50 2.2.5. Tisa (RS) ............................................................................................................................. 51 2.2.6. Morava .............................................................................................................................. 52 2.2.7. Sava (HR) ............................................................................................................................ 54 2.2.8. Sava (RS) ............................................................................................................................ 55 3. List of floodplains, their characteristics, restoration/preservation potential and associated measures 56 3.1. Methodology ......................................................................................................................... 56 3.2. Floodplain evaluation, classification and ranking on tributaries .............................................. 58 3.2.1. Krka .................................................................................................................................... 59 3.2.2. Yantra ................................................................................................................................ 64 3.2.3. Desnăţui ............................................................................................................................. 64 3.2.4. Tisza (HU) ........................................................................................................................... 65 3.2.5. Tisa (RS) ............................................................................................................................. 66 3.2.6. Morava .............................................................................................................................. 68 3.2.7. Sava (HR) ............................................................................................................................ 69 3.2.8. Sava (RS) ............................................................................................................................ 70 3.3. Final Ranking .......................................................................................................................... 72 3.3.1. Krka .................................................................................................................................... 73 3.3.2. Yantra ................................................................................................................................ 73 3.3.3. Desnăţui ............................................................................................................................. 74 3.3.4. Tisza (HU) ........................................................................................................................... 74 3 3.3.5. Tisa (RS) ............................................................................................................................. 74 3.3.6. Morava .............................................................................................................................. 75 3.3.7. Sava (HR) ............................................................................................................................ 75 3.3.8. Sava (RS) ............................................................................................................................ 75 3.4. Analysis of the results ............................................................................................................ 75 4. Recommendations for floodplain assessment on tributaries including the description of implemented methods and classification criteria ........................................................................................................ 77 3.5.1 Krka (Floodplain Krakovski gozd – Kostanjevica na Krki) ...................................................... 78 3.5.2 Desnatui (Floodplain Bistret on the Danube junction area) ................................................. 78 3.5.3 Tisza (HU) ........................................................................................................................... 78 3.5.4 Morava .............................................................................................................................. 79 3.5.5 Yantra ................................................................................................................................ 80 3.5.6 Sava and Tisa (RS) ............................................................................................................... 80 5. Conclusions ................................................................................................................................... 81 6. Sources .......................................................................................................................................... 83 4 Table of Figures Figure 1: Danube river basin with the six selected tributaries .................................................................. 9 Figure 2: Krka river basin ....................................................................................................................... 11 Figure 3: Krka river basin Gauging stations in the Krka river basin .......................................................... 12 Figure 4: Hydrography of the Krka river basin with indicated main directions of subsurface karstic flow 13 Figure 5: Locations of applied hydrographs for the modeling domain 1 – Floodplain SLO1 (Soteska) and Floodplain SLO2 (Prečna) ....................................................................................................................... 14 Figure 6: Applied hydrograph for the inflow 1 – Soteska – Krka, actual flood plains (AF) (Qn100) – narrow type (small volume) flood wave was used .............................................................................................. 14 Figure 7: Applied hydrograph for the inflow 2 – Radeščica, actual flood plains (AF) (Qn100) – narrow type (small volume) flood wave was used ..................................................................................................... 15 Figure 8: Applied hydrograph for the inflow 3 – Prečna, actual flood plains (AF) (Qn100)– narrow type