Arbi/Restoration project
Järvi-meriwikistä
< Arbi
Versio hetkellä 15. tammikuuta 2014 kello 22.51 – tehnyt Molindho (keskustelu | muokkaukset)
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This page describes the restoration of Arbi – a smallVirhe lausekkeessa: tunnistamaton välimerkki ”,”. lake in the Tartu County region of Estonia.
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 |