Case study:Vén-Duna (Old-Danube) sidearm’s revitalization - Revision history

Alexrrc at 09:52, 31 May 2017

2017-05-31T09:52:29Z

← Older revision		Revision as of 09:52, 31 May 2017
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	}}		}}
	{{Measures		{{Measures
	\|Bank and bed modifications measure=		\|Bank and bed modifications measure=Weir removal, Dredging
			\|Floodplain / River corridor=Construction of new sluices
			\|Management interventions=Ensuring biodiversity
	~~Removal of weirs~~,Dredging		\|Social measures=Recreation
	\|Floodplain / River corridor=		\|Wider stakeholder / citizen engagement=Information provision,Consultation
	Construction of new sluices
	~~\|Planform / Channel pattern=~~

	~~\|Other technical measure=~~

	\|Management interventions=
	Ensuring biodiversity
	\|Social measures=
	Recreation
	\|Wider stakeholder / citizen engagement=
	Information provision,Consultation
	}}		}}
	{{Hydromorphological_quality_elements_header}}		{{Hydromorphological_quality_elements_header}}

Marinela at 08:05, 27 September 2013

2013-09-27T08:05:20Z

← Older revision		Revision as of 08:05, 27 September 2013
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	{{~~Case_study_status~~		{{Case study status
	\|Approval status=		\|Approval status=Approved




	~~Draft~~
	}}		}}
	{{Location		{{Location

SFW Rob at 18:09, 6 September 2013

2013-09-06T18:09:02Z

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 |Project summary=The aim of the project was to obtain knowledge and experience on possibilities how to restore natural hydro-morphologic conditions and the connectivity between the river and floodplain zone. The main objective of the implementations was to provide a direct water flow connection between the Danube main stream and the side arm in order to restore the natural biodiversity and rheophilic communities typical for aquatic floodplain landscapes. The re-opening was accompanied by an extensive scientific research and monitoring program, which showed changes in riverbed morphology upstream and downstream of the rock dam. Restored high floods increased sediment transport, erosion and deposition. Suitable habitats for rheophilous invertebrate and fish species as well as species diversity and population numbers typical for dynamic water bodies increased.
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 {{Monitoring_documents}}
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 {{Supplementary_Information
 |Information=
 }}
 {{Case_study_upload}}

Marinela at 08:24, 4 July 2013

2013-07-04T08:24:24Z

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 {{Additional_Documents}}
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-{{Additional_links_and_references_header}}
+{{Additional links and references header}}
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Marinela at 06:57, 4 July 2013

2013-07-04T06:57:12Z

← Older revision		Revision as of 06:57, 4 July 2013
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	46.212476907,18.900175095		46.212476907,18.900175095
	}}		}}
	{{~~Project_overview~~		{{Project overview
	\|Status=		\|Status=Complete
			\|Themes=Habitat and biodiversity, Monitoring, Water quality
			\|Country=Hungary
	Complete		\|Main contact forename=Bela
	~~\|Project web site url=~~		\|Main contact surname=Csanyi
			\|Contact organisation=„VITUKI” Environmental and Water Management Research. Institute Non-Profit Public LLC
	\|Themes=		\|Name of parent multi-site project=Case_study:Reduction of Nutrient Discharges Project
	Habitat and biodiversity,Water quality~~,Monitoring~~		\|Multi-site=No
	\|Country=		\|Project summary=The aim of the project was to obtain knowledge and experience on possibilities how to restore natural hydro-morphologic conditions and the connectivity between the river and floodplain zone. The main objective of the implementations was to provide a direct water flow connection between the Danube main stream and the side arm in order to restore the natural biodiversity and rheophilic communities typical for aquatic floodplain landscapes. The re-opening was accompanied by an extensive scientific research and monitoring program, which showed changes in riverbed morphology upstream and downstream of the rock dam. Restored high floods increased sediment transport, erosion and deposition. Suitable habitats for rheophilous invertebrate and fish species as well as species diversity and population numbers typical for dynamic water bodies increased.
	Hungary
	\|Main contact forename=
	Bela
	\|Main contact surname=
	Csanyi
	~~\|Main contact id=~~

	\|Contact organisation=
	„VITUKI” Environmental and Water Management Research. Institute Non-Profit Public LLC
	~~\|Contact organisation url=~~

	~~\|Partner organisations=~~

	~~\|Multi-site=~~

	\|Name of parent multi-site project=
	Case_study:Reduction of Nutrient Discharges Project
	\|~~Project picture~~=

	~~\|Picture description=~~

	\|Project summary=

	}}		}}
	{{Case_study_subcatchment		{{Case_study_subcatchment

Rogier: XML import

2012-08-09T13:00:01Z

XML import

New page

{{Case_study_status
|Approval status=

Draft
}}
{{Location
|Location=

46.212476907,18.900175095
}}
{{Project_overview
|Status=

Complete
|Project web site url=

|Themes=
Habitat and biodiversity,Water quality,Monitoring
|Country=
Hungary
|Main contact forename=
Bela
|Main contact surname=
Csanyi
|Main contact id=

|Contact organisation=
„VITUKI” Environmental and Water Management Research. Institute Non-Profit Public LLC
|Contact organisation url=

|Partner organisations=

|Multi-site=

|Name of parent multi-site project=
Case_study:Reduction of Nutrient Discharges Project
|Project picture=

|Picture description=

|Project summary=

}}
{{Case_study_subcatchment
|Subcatchment=

Old-Danube side arm
}}
{{Site
|Name=

Vén-Duna (Old-Danube) sidearm
|WFD water body code=
AEP444
|WFD (national) typology=
Danube between Szob and Baja
|WFD water body name=

|Pre-project morphology=
Artifical oxbow cut-off from the main river
|Reference morphology=
Sidearm
|Heavily modified water body=

|Local site designation=
National Park,Natura 2000,Ramsar
|Site designation=
EU - Special Area of Conservation
|Protected species present=

|Invasive species present=

|Species=

|Dominant hydrology=
Lentic
|Dominant substrate=
Sand,Silt
|River corridor land use=
Intensive agriculture (arable),Urban,Plantation forestry
|Average bankfull channel width category=
more than 50 m
|Avrg bankfull channel width=

|Average bankfull channel depth category=
5 - 10 m
|Avrg1 bankfull channel depth=

|Mean discharge category=

|Mn discharge=
2400
|Average channel gradient category=

|Avrg channel gradient=

}}
{{Project_background
|Reach length directly affected=

4500 m
|Project started=
1992/04/01
|Works started=
1998/08/01
|Works completed=
2004/09/01
|Project completed=

|Total cost category=
50 - 100 k€
|Total1 cost=
66 k€
|Funding sources=
RIZA (Institute for Inland Water
Management and Waste Water Treatment of the Netherlands)
|Investigation and design cost category=

|Invst and design cost=

|Investigation and design Lead organisation=
RIZA (Institute for Inland Water
Management and Waste Water Treatment of the Netherlands)
|Investigation and design Other contact forename=

|Investigation and design Other contact surname=

|Stakeholder1 engagement cost category=

|stk engagement cost=

|Stakeholder engagement Lead organisation=
„VITUKI” Environmental and Water Management Research. Institute Non-Profit Public LLC
|Stakeholder engagement Other contact forename=

|Stakeholder engagement Other contact surname=

|Works1 and supervision cost category=

|Wrk and supervision cost=

|Works and supervision Lead organisation=
„VITUKI” Environmental and Water Management Research. Institute Non-Profit Public LLC
|Works and supervision Other contact forename=

|Works and supervision Other contact surname=

|Post-project1 management and maintenance cost category=

|Post-project2 management and maintenance cost=

|Post-project management and maintenance Lead organisation=
„VITUKI” Environmental and Water Management Research. Institute Non-Profit Public LLC
|Post-project management and maintenance Other contact forename=

|Post-project management and maintenance Other contact surname=

|Monitoring1 cost category=

|Monitoring2 cost=

|Monitoring Lead organisation=
„VITUKI” Environmental and Water Management Research. Institute Non-Profit Public LLC
|Monitoring Other contact forename=
Bela
|Monitoring Other contact surname=
Csanyi
|Supplementary funding information=

}}
{{Motivations
|Hydromorphological quality elements=

Substrate conditions,Quantity & dynamics of flow,Continuity for organisms
|Biological quality elements=
Fish: Abundance,Fish: Species composition,Phytoplankton: Blooms
|Physico-chemical quality elements=
Nutrient concentrations,Oxygen balance,Temperature
|Specific mitigation=

|Other motivation=
Recreation,Landscape enhancement,Community demand
}}
{{Measures
|Bank and bed modifications measure=

Removal of weirs,Dredging
|Floodplain / River corridor=
Construction of new sluices
|Planform / Channel pattern=

|Other technical measure=

|Management interventions=
Ensuring biodiversity
|Social measures=
Recreation
|Wider stakeholder / citizen engagement=
Information provision,Consultation
}}
{{Hydromorphological_quality_elements_header}}
{{Hydromorphological_quality_element_table_row
|Element=

Quantity & dynamics of flow
|Monitored before=
Yes
|Monitored after=
Yes
|Qualitative monitoring=

|Quantitative monitoring=
Yes
|Control site used=

|Result=
Improvement
}}
{{Hydromorphological_quality_element_table_row
|Element=

Substrate conditions
|Monitored before=
Yes
|Monitored after=
Yes
|Qualitative monitoring=

|Quantitative monitoring=

|Control site used=

|Result=
Improvement
}}
{{End_table}}
{{Biological_quality_elements_header}}
{{Biological_quality_element_table_row
|Element=

Fish: Species composition
|Monitored before=
Yes
|Monitored after=
Yes
|Qualitative monitoring=
Yes
|Quantitative monitoring=

|Control site used=

|Result=
Improvement
}}
{{Biological_quality_element_table_row
|Element=

Invertebrates
|Monitored before=
Yes
|Monitored after=
Yes
|Qualitative monitoring=

|Quantitative monitoring=

|Control site used=

|Result=
Improvement
}}
{{End_table}}
{{Physico-chemical_quality_elements_header}}
{{Physico-chemical_quality_element_table_row
|Element=

Nutrient concentrations
|Monitored before=
Yes
|Monitored after=
Yes
|Qualitative monitoring=

|Quantitative monitoring=
Yes
|Control site used=

|Result=
Improvement
}}
{{Physico-chemical_quality_element_table_row
|Element=

Oxygen balance
|Monitored before=
Yes
|Monitored after=
Yes
|Qualitative monitoring=

|Quantitative monitoring=
Yes
|Control site used=

|Result=
Improvement
}}
{{Physico-chemical_quality_element_table_row
|Element=

Temperature
|Monitored before=
Yes
|Monitored after=

|Qualitative monitoring=

|Quantitative monitoring=

|Control site used=

|Result=
Improvement
}}
{{End_table}}
{{Other_responses_header}}
{{End_table}}
{{Monitoring_documents}}
{{Monitoring_documents_end}}
{{Image_gallery}}
{{Image_gallery_end}}
{{Additional_Documents}}
{{Additional_Documents_end}}
{{Additional_links_and_references_header}}
{{Additional_links_and_references_footer}}
{{Supplementary_Information
|Information=

}}
{{Case_study_upload}}