Case study:The restoration of the Sotovo lake: Volga-Akhtuba floodplain

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Location: 48° 31' 56.16" N, 44° 51' 33.13" E

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Project overview

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Status	In progress
Project web site
Themes	Habitat and biodiversity, Monitoring, Social benefits
Country	Russia
Main contact forename	Dmitry
Main contact surname	Zolotarev
Main contact user ID	User:Dzolotaryov
Contact organisation	UNDP
Contact organisation web site
Partner organisations	Coca-Cola, Volzhsky Institute of Humanities, Volgograd State Socio-Pedagogical University, Nature Park "Volga-Akhtuba Floodplain"
Parent multi-site project
This is a parent project encompassing the following projects	No

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Volga-Akhtuba floodplain is one of the biggest floodplains in Europe. The lower part of the Volga basin (downstream Volgograd and Volzhskaya hydro-electric power station) remains more or less in its natural conditions while the rest of the Volga river represents the cascade of the dams and reservoirs for electric power production. During the hydrological monitoring which our group (Filippov O.V.) has started at 2001 it has been found out that some territories of the floodplain (some local ecosystems) have been very depressed. The reasons for such a situation are: 1. construction of the Volzhskaya HPP in 1958 which has been regulating the discharge of the water in the following way: the amount of the water hasn’t been changed but the distribution has been violated (winter discharges became larger; summer – less); 2. Local population during decades has used the territory for agriculture – plant growing and local dikes and dams were needed; 3. One of such places – the lake Sotovo – was surrounded with dikes to prevent flooding to come to the neighboring territories which were used for gardening. In 2006 the UNDP project named “Conservation of Wetlands Biodiversity in the Lower Volga Region” started. The group of scientists with the specialists of the project discussed some places for restoration in the floodplain and the Sotovo Lake was chosen. The lake was completely dried out because as we found out later it was surrounded with dikes and the paths for water from the river which should feed the lake from upper flow were closed. The main aim was to re-install the natural flooding regime at the Sotovo lake. To reach the aim it was decided to remove some parts of the earthen dike and to construct an installation (dam) for water level regulation.

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Catchment and subcatchment Select a catchment/subcatchment Site Edit site Name WFD water body codes WFD (national) typology WFD water body name Pre-project morphology Reference morphology Desired post project morphology Heavily modified water body National/international site designation Local/regional site designations Protected species present Invasive species present Species of interest Dominant hydrology Dominant substrate River corridor land use Average bankfull channel width category Average bankfull channel width (m) Average bankfull channel depth category Average bankfull channel depth (m) Mean discharge category Mean annual discharge (m3/s) Average channel gradient category Average channel gradient Average unit stream power (W/m2) Project background Edit project background Reach length directly affected (m) Project started Works started Works completed Project completed Total cost category Total cost (k€) Benefit to cost ratio Funding sources Cost for project phases Phase cost category cost exact (k€) Lead organisation Contact forename Contact surname Investigation and design Stakeholder engagement and communication Works and works supervision Post-project management and maintenance Monitoring Reasons for river restoration Edit reasons for restoration Mitigation of a pressure Hydromorphology Biology Physico-chemical Other reasons for the project Measures Edit Measures Structural measures Bank/bed modifications Floodplain / River corridor Planform / Channel pattern 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 Biological quality elements Edit biological quality elements Element When monitored Type of monitoring Control site used Result Before measures After measures Qualitative Quantitative 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 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 Monitoring documents Upload monitoring documents Additional documents and videos Upload additional documents Additional links and references Edit links and references Link Description Supplementary Information Edit Supplementary Information