Tämä on asiantuntijan ylläpitämä sivu. Tietojen muokkaaminen on estetty tavallisilta käyttäjiltä.
{{Laatikko2|Sisältö=
This page describes the restoration of Karvianjärvi (36.043.1.001) – a Virhe lausekkeessa: tunnistamaton välimerkki ”,”.Virhe lausekkeessa: tunnistamaton välimerkki ”,”. lake in the Satakunnan maakunta region of Finland.
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
Internal phosphorus loading | |
Blooms of cyanobacteria | |
External phosphorus loading from point sources Mean annual load of phosphorus (from diffuse and point sources): 3948 kg | |
External phosphorus loading from diffuse sources Mean annual load of phosphorus (from diffuse and point sources): 3948 kg | |
Overgrowth of macrophytes | |
Too high density of cyprinids |
Main restoration and management measures
Year of implementation | ||
---|---|---|
Biomanipulation by fish removal | ||
On site sewage treatment of scattered settlement | ||
Agricultural management practices | ||
Macrophyte removal |
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 |