Case study:The Babina Restoration Project

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Location: 45° 25' 29.15" N, 29° 24' 42.35" E

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Project overview

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Status	Complete
Project web site
Themes	Habitat and biodiversity
Country	Romania
Main contact forename	Marian
Main contact surname	Tudor
Main contact user ID
Contact organisation	The Danube Delta National Institute for Research and Development, Tulcea
Contact organisation web site	http://www.ddni.ro
Partner organisations	The Danube Delta Biosphere Reserve Authority
Parent multi-site project
This is a parent project encompassing the following projects	No

The Babina - present situation

Project summary

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Until the 20th century vast areas of the Danube Delta faced only minimal human impacts through extensive fishery and reed harvesting. Since then the Danube Delta has undergone multiple human impacts like embankment, channelization and drainage. Moreover, large areas were diked and the polders used for agriculture. The Babina polder (2.100 ha) was reconnected to the Danube in 1994 and recovery has been monitored by the Danube Delta National Institute for Research and Development. Within a few years a redevelopment of the site-specific biodiversity occurred and ecosystem services like nutrient retention and fish recruitment became obvious. Additionally, the reconnected polder enable reed harvesting, grazing, fishing and ecotourism.

Monitoring surveys and results

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Lessons learnt

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Image gallery

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The Babina polder before restoration

The Babina polder after restoration

Restored lake and Babina Island

European mink (Mustela lutreola) in the restored area

European otter (Lutra lutra) in the restored area

Little egret (Egretta garzetta) in the restored area

Satellite image of Babina area (1993)

Satellite image of Babina area (1996)

Catchment and subcatchment Select a catchment/subcatchment Edit the catchment and subcatchment details (affects all case studies in this subcatchment) Catchment River basin district Danube River basin Danube Delta Subcatchment River name Chilia Branch Area category Less than 10 km² Area (km2) 2.102.1 km² <br />210 ha <br /> Maximum altitude category Less than 100 m Maximum altitude (m) 2.42.4 m <br />0.0024 km <br />240 cm <br /> Dominant geology Organic (i.e. Peat) Ecoregion Pontic Province Dominant land cover Grassland, Reed Waterbody ID Other case studies in this subcatchment: The Cernovca Restoration Project Site Edit site Name Agricultural polder Babina WFD water body codes RORW14.1_B6 WFD (national) typology RO15 WFD water body name Pre-project morphology Embanked, Agricultural land Reference morphology Sinuous, Artificial channel Desired post project morphology Heavily modified water body No National/international site designation International - RAMSAR site Local/regional site designations Biosphere Reserves Protected species present No Invasive species present No Species of interest Dominant hydrology Artificially regulated, Floodplain area Dominant substrate Sand, Clay River corridor land use Grassland, Wetland Average bankfull channel width category 10 - 50 m Average bankfull channel width (m) Average bankfull channel depth category 0.5 - 2 m Average bankfull channel depth (m) 1.951.95 m <br />0.00195 km <br />195 cm <br /> Mean discharge category more than 1000 m³/s Mean annual discharge (m3/s) 36063,606 m³/s <br />3,606,000 l/s <br /> Average channel gradient category 0.01 - 0.1 Average channel gradient 0.015 Average unit stream power (W/m2) Project background Edit project background Reach length directly affected (m) Project started 1991/01/01 Works started 1994/04/01 Works completed 1994/05/01 Project completed Total cost category 10 - 50 k€ Total cost (k€) 24072,407 k€ <br />2,407,000 € <br /> Benefit to cost ratio Funding sources GEF biodiversity preservation project in the Danube Delta Cost for project phases Phase cost category cost exact (k€) Lead organisation Contact forename Contact surname Investigation and design The Danube Delta Biosphere Reserve Authority, Tulcea Marian Tudor Stakeholder engagement and communication The Danube Delta Biosphere Reserve Authority, Tulcea Marian Tudor Works and works supervision The Danube Delta Biosphere Reserve Authority, Tulcea Post-project management and maintenance The Danube Delta Biosphere Reserve Authority, Tulcea Monitoring The Danube Delta National Institute for Research and Development, Tulcea (office@indd.tim.ro) Marian Tudor Reasons for river restoration Edit reasons for restoration Mitigation of a pressure Flood risk management Hydromorphology Continuity for organisms Biology Fish: Species composition Physico-chemical Nutrient concentrations Other reasons for the project Landscape enhancement, Recreation Measures Edit Measures Structural measures Bank/bed modifications Create breaches in the bank Floodplain / River corridor Creation of wetland Planform / Channel pattern Reconnecting polder Other Non-structural measures Management interventions Social measures (incl. engagement) Other Monitoring Hydromorphological quality elements Edit Hydromorphological quality elements Element When monitored Type of monitoring Control site used Result Before measures After measures Qualitative Quantitative Quantity & dynamics of flow No Yes No No No Improvement Continuity of sediment transport No No No No No Improvement Biological quality elements Edit biological quality elements Element When monitored Type of monitoring Control site used Result Before measures After measures Qualitative Quantitative Fish: Species composition Yes No No No No Improvement Phytoplankton: Taxonomic composition No No No No No Improvement Invertebrates No Yes No No No Macrophytes No No No No No Physico-chemical quality elements Edit Physico-chemical quality elements Element When monitored Type of monitoring Control site used Result Before measures After measures Qualitative Quantitative Salinity No Yes No No No Improvement PH No No No No No Oxygen balance No No No No No Temperature No No No No No Any other monitoring, e.g. social, economic Edit Other responses Element When monitored Type of monitoring Control site used Result Before measures After measures Qualitative Quantitative Ecological tourism development No No No No No Improvement Fish No Yes No No No Reed No Yes No No No Pasture No Yes No No No Medicinal plants No Yes No No No Monitoring documents Upload monitoring documents Development of zoobenthos in the restored polder Babina The evolution of Babina polder after restoration work Additional documents and videos Upload additional documents Babina and Cernovca Islands Additional links and references Edit links and references Link Description http://www.ddni.ro The website of The Danube Delta National Institute for Research and Development, Tulcea, Romania Supplementary Information Edit Supplementary Information