Ero sivun ”Villikkalanjärvi (16.003.1.003)/Restoration project” versioiden välillä
Järvi-meriwikistä
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{{Restoration project | {{Restoration project | ||
|Description={{LakeAdmin description}} | |Description={{LakeAdmin description}} | ||
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{{Lake problem | {{Lake problem | ||
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{{Restoration measure | {{Restoration measure | ||
|Measure=Biomanipulation by fish removal | |Measure=Biomanipulation by fish removal | ||
− | |Start date=1997 | + | |Start date=1997 |
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Nykyinen versio 11. huhtikuuta 2023 kello 15.32
Tämä on asiantuntijan ylläpitämä sivu. Tietojen muokkaaminen on estetty tavallisilta käyttäjiltä.
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This page describes the restoration of Villikkalanjärvi (16.003.1.003) – a Virhe lausekkeessa: tunnistamaton välimerkki ”,”.Virhe lausekkeessa: tunnistamaton välimerkki ”,”. lake in the Päijät-Hämeen 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
External phosphorus loading from diffuse sources Mean annual load of phosphorus: 17284 kg | |
Blooms of cyanobacteria | |
Internal phosphorus loading | |
Too high density of cyprinids | |
Overgrowth of macrophytes | |
Other: Low oxygen |
Main restoration and management measures
Year of implementation | ||
---|---|---|
Biomanipulation by fish removal | 1997 |
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 |