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1 SVP, Banská Bystrica, FramWat národný dialóg o prírode blízkych vodozádržných opatreniach v krajine FramWat, Tomas Orfanus

2 FROM THE VALORISATION TOOL TO STATIC & DYNAMIC TOOLS, FROM THE CONCEPT PLAN TO DECISION ST TAKING COOPERATION FORWARD 2

3 FROM THE VALORISATION TOOL TO STATIC & DYNAMIC TOOLS, FROM THE CONCEPT PLAN TO DECISION ST Indicators: problem, which should be solved via NSWRM. Measures of relevance: The positive or negative change of the indicator (up to 30% reduction of the flood runoff) Static tool: calculates the final result (effectiveness value) of the system of NSWRMs implemented in basin Dynamic tool: Serves to simulate the processes influenced by NSWRMs implementation and calculates the result values of the desired characteristics, which could be used as an indicator (e.g. flood peak-flow discharge) TAKING COOPERATION FORWARD 3

4 1. Fungujúci valorizačný nástroj GIS platforma, schopná zanalyzovať povodie resp. vodný útvar z pohľadu waterrelated problems a z pohľadu vhodnosti implementácie vodozádržných opatrení vo vodnom útvare výstup WP 1 2. Získanie dostatočného množstva vedomostí (kvantitatívnych údajov) o vplyve rôznych vodozádržných opatrení na rôzne požadované efekty (povodne, sucho, transport sedimentov, N a P, biodiverzita a iné) prieskum literárnych zdrojov, hydrodynamické modelovanie 3. Vytvorenie look-up table vyhľadávacej tabuľky s definovanými rozsahmi efektivity jednotlivých VZO na konkrétne vodohospodárske a environmentálne ciele TAKING COOPERATION FORWARD 4

5 4. Vývoj algoritmov pre výpočet kumulatívnej synergickej efektivity rôznych VZO a ich kombinácií v semikvantitatívnom vyjadrení aplikovateľných v GIS prostredí. TAKING COOPERATION FORWARD 5

6 RiverFlow2D HEC-RAS SWAT Sector Measures (NWRM/NSWRM) Source of measure Meadows and pastures nwrm.eu Lúky a pastviny Measure in Slovak Mechanism of Water Retention Can model assess: water quantity +--; water quality- Slowing&reducing runoff Reducing runoff +-;biodiversity value--+ BP1 Store runoff BP2 Slow runoff BP3 Store river water BP4 Slow river water BP5 Increase BP6 Increase infiltration BP7 Increase soil water evapotranspiration and/or groundwater retention Value Reference Value Reference Value Reference Value Reference Value Reference Value Reference Value Reference a)10-15% Normal rain after d.p./hs./perm.soil c)doubling of the frequency of stormflow and overland flow in pasture. In contrast, the stormflow volume in pasture increased 17-fold. b) b)1-2% Havy rain after w.p./ll. a) doi c)doi: /j.jhyd rol doi: /j.jhydro l AGRICULTURE Buffer strips and hedges nwrm.eu Pufrovacie pásy a živé ploty Crop rotation nwrm.eu striedanie plodín Strip cropping along contours nwrm.eu Vysádzanie plodín pozdĺž vrstevníc Intercropping nwrm.eu medziriadkové pestovanie No till agriculture nwrm.eu bezorbové poľnohospodárstvo Low till agriculture nwrm.eu metódy šetrnej orby Green cover nwrm.eu vegetačný kryt Early sowing nwrm.eu skorá sejba Traditional terracing nwrm.eu Tradičné terasovanie Controlled traffic farming nwrm.eu minimalizácia dráh prejazdov Reduced stocking density nwrm.eu Zníženie zaťaženia dobytčími jednotkami Mulching/fertilization nwrm.eu mulčovanie/hnojenie a)conservation tillage may be a)doi: /j. more desirable than conventional still tillage in terms of water flow. 8 Effective pores for retaining plant available water were 0.557, 0.636, and m3 m-3 under CT, MT and ZT. a)biochar amendment increased a) available soil water content rg/ /j.eja compared to control soils by 3.2% % in the 22 and 44 ton ha-1 application rates, resp.? --- Agrotechnics-field water harvesting (small dikes around field edges) Deep plowing (removing the plow's sole) Miodusze wski Kardel zachytávanie dažďovej vody malými hrádzkami a priekopami na okrajoch poľa hlboká orba (odstránenie zhutnenej podorničnej vrsty) TAKING COOPERATION FORWARD 6

7 Indicators Straight Rank Weight (W) Normalized Weight (W j ) Weight in % Water retention increase Biodiversity increase Sediment trapping Flood-peak reduction Sum TAKING COOPERATION FORWARD 7

8 INDICATORS Water retention Biodiversity Sediment Flood INDICATOR S CLASSES OF POSITIVE EFFECT 0 3 mm 3 8 mm 8 20 mm 20 mm and more 0-10 % 10-30% % % 60 % and more 0-15% % % % 80 % and more 0 10% 10 20% 20 30% Relevance of factor s class (IF i, j ) TAKING COOPERATION FORWARD 8