Ero sivun ”Karhijärvi (36.092.1.001)/Restoration project” versioiden välillä
Järvi-meriwikistä
(Ak: Uusi sivu: {{Restoration project |Description={{LakeAdmin description}} |Ylläpito=Asiantuntija }}) |
p (Tekstin korvaus – ”|Ylläpito=Asiantuntija” muotoon ”|Ylläpito=expert”) |
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(Yhtä välissä olevaa versiota samalta käyttäjältä ei näytetä) | |||
Rivi 1: | Rivi 1: | ||
{{Restoration project | {{Restoration project | ||
|Description={{LakeAdmin description}} | |Description={{LakeAdmin description}} | ||
− | |Ylläpito= | + | |Ylläpito=expert |
+ | }} | ||
+ | {{Lake problem | ||
+ | |Problem=External phosphorus loading from diffuse sources | ||
+ | |Additional information=Mean annual load of phosphorus (from diffuse and point sources): 9244 kg | ||
+ | }} | ||
+ | {{Lake problem | ||
+ | |Problem=External phosphorus loading from point sources | ||
+ | |Additional information=Mean annual load of phosphorus (from diffuse and point sources): 9244 kg | ||
+ | }} | ||
+ | {{Lake problem | ||
+ | |Problem=Internal phosphorus loading | ||
+ | }} | ||
+ | {{Lake problem | ||
+ | |Problem=Blooms of cyanobacteria | ||
+ | }} | ||
+ | {{Lake problem | ||
+ | |Problem=Too high density of cyprinids | ||
+ | }} | ||
+ | {{Lake problem | ||
+ | |Problem=Overgrowth of macrophytes | ||
+ | }} | ||
+ | {{Restoration measure | ||
+ | |Measure=Reduction of external nutrient load from point sources | ||
+ | |Start date=1990 | ||
+ | |Additional information=Current P-reduction in treatment of sewage water is 95% | ||
+ | }} | ||
+ | {{Restoration measure | ||
+ | |Measure=Biomanipulation by fish removal | ||
+ | }} | ||
+ | {{Restoration measure | ||
+ | |Measure=Macrophyte removal | ||
}} | }} |
Nykyinen versio 19. toukokuuta 2016 kello 12.22
Tämä on asiantuntijan ylläpitämä sivu. Tietojen muokkaaminen on estetty tavallisilta käyttäjiltä.
{{Laatikko2|Sisältö=
This page describes the restoration of Karhijärvi (36.092.1.001) – 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
External phosphorus loading from diffuse sources Mean annual load of phosphorus (from diffuse and point sources): 9244 kg | |
Too high density of cyprinids | |
Internal phosphorus loading | |
External phosphorus loading from point sources Mean annual load of phosphorus (from diffuse and point sources): 9244 kg | |
Overgrowth of macrophytes | |
Blooms of cyanobacteria |
Main restoration and management measures
Year of implementation | ||
---|---|---|
Reduction of external nutrient load from point sources Current P-reduction in treatment of sewage water is 95% | 1990 | |
Biomanipulation by fish removal | ||
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 |