View source for Case study:Restore riparian floodplain habitats maintained in reserve "Dolna topchia" and run off on his sleeve "Malka Tundzha"

{{Case study status
|Approval status=Approved
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{{Location
|Location=42.230080751, 26.5663554224
}}
{{Project overview
|Status=Complete
|Themes=Habitat and biodiversity
|Country=Bulgaria
|Main contact forename=Penka
|Main contact surname=Nacheva
|Contact organisation=Regional Inspectorate of Environment and Water – Stara Zagora
|Contact organisation url=www.stz.riew.e-gov.bg/
|Multi-site=No
|Project picture=Picture 006.jpg
|Picture description="Dolna topchia" Reserve
|Project summary=Design and construction of hydraulic structures on river Tundzha for  recovery of riparian wetland biotopes maintained in reserve "Dolna topchia" and run off on his sleeve "MalkaTundzha."
The main objective of the project is to restore the conditions necessary for the maintenance of riparian biotopes. Main habitat is riparian floodplain forest - habitat code 91F0. There is good population of spring snowflake. The target of the project area is maintained reserve category " Dolna topchia " and is part of the Natura 2000 network –protected area "Reka Tundzha 2." To achieve the objective was built weir on the Tundzha river and channel with length of 900 m. The water intake includes the diversion weir, stilling, primitive channel, fish passage and water intake facility.
Through the construction of channel and water intake facility is carried out gravity connection between the river and sleeve " MalkaTundzha" by drainage channel along an existing irrigation canal that expanding, allowing hydration of 467.6 ha of habitat 91F0. The channel is lined and the bed of the "MalkaTundzha” will supply the groundwater in the area of the reserve. After the feedback between " MalkaTundzha " and river along the southern border of the reserve "Dolna topchia"  will be implemented consistent circulation of water in reserve.
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{{Image gallery}}
{{Case study image
|File name=Dolna topchia Reserve 1.jpg
|Caption=Dolna topchia Reserve_1
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{{Case study image
|File name=Dolna topchia Reserve 2.jpg
|Caption=Dolna topchia Reserve_2
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{{Case study image
|File name=Tundzha river 1.jpg
|Caption=Tundzha river_1
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{{Case study image
|File name=Tundzha river 2.jpg
|Caption=Tundzha river_2
}}
{{Case study image
|File name=Tundzha river 3.jpg
|Caption=Tundzha river_3
}}
{{Image_gallery_end}}
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{{Case_study_subcatchment
|Subcatchment=
    
    
      Tundzha river
}}
{{Site
|Name=
    
    
      protected area "Tundzha river - 2"   BG 0000195
|WFD water body code=
      BG3TU500R016
|WFD (national) typology=
      TR20
|WFD water body name=
      
|Pre-project morphology=
      Sinuous
|Reference morphology=
      Sinuous
|Heavily modified water body=
      
|Local site designation=
      
|Site designation=
      EU - Special Area of Conservation
|Protected species present=
      
|Invasive species present=
      
|Species=
      
|Dominant hydrology=
      Artificially regulated
|Dominant substrate=
      Silt
|River corridor land use=
      Woodland
|Average bankfull channel width category=
      10 - 50 m
|Avrg bankfull channel width=
      
|Average bankfull channel depth category=
      2 - 5 m
|Avrg1 bankfull channel depth=
      
|Mean discharge category=
      
|Mn discharge=
      32
|Average channel gradient category=
      
|Avrg channel gradient=
      
}}
{{Project_background
|Reach length directly affected=
    
    
      
|Project started=
      
|Works started=
      
|Works completed=
      
|Project completed=
      
|Total cost category=
      100 - 500 k€
|Total1 cost=
      
|Funding sources=
      Enterpise for Management of Environmental Protection Activities
|Investigation and design cost category=
      
|Invst and design cost=
      
|Investigation and design Lead organisation=
      
|Investigation and design Other contact forename=
      Lyutskan
|Investigation and design Other contact surname=
      Tanev
|Stakeholder1 engagement cost category=
      
|stk engagement cost=
      
|Stakeholder engagement Lead organisation=
      
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|Post-project1 management and maintenance cost category=
      
|Post-project2 management and maintenance cost=
      
|Post-project management and maintenance Lead organisation=
      
|Post-project management and maintenance Other contact forename=
      
|Post-project management and maintenance Other contact surname=
      
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{{Motivations
|Hydromorphological quality elements=
    
    
      Structure & condition of riparian/ lake shore zones
|Biological quality elements=
      
|Physico-chemical quality elements=
      
|Specific mitigation=
      
|Other motivation=
      
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{{Measures
|Bank and bed modifications measure=
    
    
      
|Floodplain / River corridor=
      Creation of wetlands
|Planform / Channel pattern=
      
|Other technical measure=
      
|Management interventions=
      
|Social measures=
      
|Wider stakeholder / citizen engagement=
      Information provision
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{{End_table}}
{{Biological_quality_elements_header}}
{{End_table}}
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{{Other_responses_header}}
{{Other_response_table_row
|Element=
    
    
    
    
    
    
    
    
    
      Public awareness of river
|Monitored before=
      
|Monitored after=
      
|Qualitative monitoring=
      
|Quantitative monitoring=
      
|Control site used=
      
|Result=
      Improvement
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{{End_table}}
{{Monitoring_documents}}
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{{Additional_Documents}}
{{Additional_Documents_end}}
{{Additional links and references header}}
{{Additional links and references
|Link=www.stz.riew.e-gov.bg/ 
|Description=Regional Inspectorate of Environment and Water Stara Zagora 
}}
{{Additional_links_and_references_footer}}
{{Supplementary_Information
|Information=
    
    
    
    
    
    
    
    
    
    
    
      
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