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Versio 19. tammikuuta 2014 kello 23.37
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This page describes the restoration of Arbi – a smallVirhe lausekkeessa: tunnistamaton välimerkki ”,”. lake in the Tartu County region of Estonia.
Data has been collected in the LakeAdmin project with the aim of sharing good restoration practices throughout Europe. More lakes can be searched in the LakeAdmin Lake Archive.
Data has been collected in the LakeAdmin project with the aim of sharing good restoration practices throughout Europe. More lakes can be searched in the LakeAdmin Lake Archive.
Main problems and reasons for restoration
![]() | Too high density of cyprinids |
![]() | Overgrowth of macrophytes |
![]() | Blooms of cyanobacteria |
![]() | External phosphorus loading from diffuse sources |
![]() | Internal phosphorus loading |
Main restoration and management measures
Year of implementation | ||
---|---|---|
![]() | ||
![]() | Dredging | |
![]() | Biomanipulation by fish removal | |
![]() | Other: | |
![]() | Wetlands or sedimentation ponds Sedimentation pond at inflow | |
![]() | On site sewage treatment of scattered settlement | |
![]() | Reduction of external nutrient load from point sources New sewage treatment plant | 2002 |
![]() | Agricultural management practices | |
![]() | Aeration of hypolimnion |
Effects of the restoration measures
Before restoration | After restoration | ||
---|---|---|---|
![]() | Total phosphorus | 0 | 0 |
![]() | Total nitrogen | 0 | 0 |
![]() | Alkalinity | 0 | 0 |
![]() | Transparency | 0 | 0 |
![]() | Chlorophyll-a | 0 | 0 |