Restoration within the Srebarna Nature Reserve, Bulgaria

Title Restoration within the Srebarna Nature Reserve, Bulgaria
Description
Preview image No image
Preview image caption
Creators fullname Laszlo Cseh
Contributors fullname
NWRM
Site information
Climate zone
warm temperate dry
Mean rainfall
547
Mean rainfall unit
mm/year
Average temperature
12,8000001907349
Average imperviousness
0,200000002980232
Type
Case Study Info
Light or indepth?
Light
Average slope range
0.02
Vegetation class
Marsh plants
Design and implementations
Application scale
Field Scale
Installation date
1994
Age
10
Performance timescale
5 - 10 years
Area (ha)
60200
Size
638
Size unit
ha
Max water retention capacity
14
Max water retention capacity unit
mio m3/month
Constraints
Interrupted connection with Danube River, Distance fom the main river
Favourable preconditions
Designated to Strict nature reserve
Design contractual arrangement
No data
Design consultation activity
No data
Design land use change
No data
Design authority
No data
Lessons, risks, implications
Key lessons
Hydrotechnical restoration of Srebarna is successful concerning the local biophysical impacts: improved water level, decline in eutrophication trends, improved biodiversity. However the impacts at river basin level are insignificant or difficult to assess due to the scale difference.
Success factor(s)
No data
Financing
No data
Barrier
No data
Driver
No data
Financing share
No data
Policy, general governance
Policy description
Decrease of the water level, Eutrophication, Sediments accumulation,
Part of wider plan
0
Policy target
Target purpose
Runoff control
Improved Biodiversity
Increase Water Storage
Policy pressure
No data
Policy area
No data
Policy impact
No data
Policy wider plan
No data
Policy requirement directive
No data
Socio economic
Ecosystem improved biodiversity
1
Information on Ecosystem improved biodiversity
Maintaining wetland for endangered bird species
Ecosystem provisioning services
0
Ecosystem impact climate regulation
Increased permanent biomas
Biophysical impacts
Retained water
14
Retained water unit
mio m3/year
Increased water storage
4
Increased water storage unit
mio m3/year
Water quality overall improvements
Positive impact-WQ improvement
Soil quality overall soil improvements
N/A info
Monitoring maintenance
Monitoring impacts effects
1
Performance
Performance impact estimation method
Catchment outlet
Performance impact estimation information
Measurment of the water level; Monitoring of the bird species
Measures
sources
Nwrm type Light
Nwrm geolocation 27.07305,44.10972
General
National Id
Bulgaria_09
Site name
Srebarna Nature Reserve
Summary
A linking canal with a lock, constructed in 1994, enabled the artificial respiration of Srebarna Lake in the Bulgarian border with Romania. Thanks to this canal, water from the Danube can now flow into the lake every year.
NUTS Code
Северен централен (Severen tsentralen)
RBD code
BG1000
Transboundary
0
Data provider
REC
Longitude
27.07305
Latitude
44.10972
EEA core metadata
Topics
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Geographical coverage {}
Publisher
Rights
Other organisations involved
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