Flussgebietseinheit – Oblast povodí – R.B.D. (Labe/Elbe): Main unit for management of river...
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Transcript of Flussgebietseinheit – Oblast povodí – R.B.D. (Labe/Elbe): Main unit for management of river...
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Vymezení a typologie vodních útvarů
povrchových vod
Josef K. Fuksa, T.G.M. Water Research Institute, Prague
MKOL/IKSE, Dresden, 4 MAR 2005
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Flussgebietseinheit – Oblast povodí – R.B.D. (Labe/Elbe):
Main unit for management of river basins
WB – a coherent subunit in the RBD to which the environmental objectives must apply.
Main purpose of identifying WBs is to enable the status to be accurately described and compared to Objectives.
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Water body - WFD 2 (10):
”Body of surface water” means a
discrete and significant element
of surface water…
"Oberflachenwasserkörper": ein
einheitlicher und bedeutender Abschnitt
”Útvar povrchové vody” je
vymezitelný a významný prvek …..
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UPSTREAM
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DOWNSTREAM
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Number of river WBs River Basin District Elbe, Czech Rep.:
Area: WB Rivers: WB Lakes: WB Salties:BRD+CR 147108 No of WBs 3438 482 4
BRD 97175 2838 432 4CR 49933 600 50 0
Mean area BRD 34,2 km*2of a river WB basin: CR 83,2 km*2
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Typology of WBs:
Find type reference conditions.
Compare the status.
Express ecol. status as EQR.
Define Objectives.
Set Measures.
Control the success (R.B.M.P.).
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Typology in CR:
Related to WBs.
System A + ammendments:
Altitude 200-500, 500-800 m.
Strahler order (4 - 8).
Numerical code (ecoregion 9)
Lakes = HMWBs.
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Czech typology – example:
WB 1465300: Labe between Bilina and Hrensko – type 41148:
4 Ecoregion: 9
1 Altitude: < 200 m
1 Geology: Si
4 Basin area: >10 000 km*2
8 Strahler Order: 8
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Typology in BRD - Steckbriefe:Related to rivers / river types.Based on System „B“.Descriptors from System „A“: Ecoregion (9, 14 + non-ecoregion). Geology. Catchment area. Other characteristics
(phys. chemistry, biology).
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Specific items of typology
BRD: Bottom substrate.
CR: Strahler Order
(at the closing profile of the WB).
Polska: Strahler Order.
Österreich: Combined typology.
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Number of types:
BRD: 19 types (+ Si/Ca branching).
CR: 22 types with > 5 WBs,
covering 95% of river WBs.
Boundary WBs:
Simple „A“ typology could be used.
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Good WB status upstream = an important condition for
good WB status downstream