Ero sivun ”Torankijärvi (74.031.1.023)/Restoration project” versioiden välillä

Versio 27. tammikuuta 2014 kello 22.46

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This page describes the restoration of Torankijärvi (74.031.1.023) – a Virhe lausekkeessa: tunnistamaton välimerkki ”,”.Virhe lausekkeessa: tunnistamaton välimerkki ”,”. lake in the Pohjois-Pohjanmaan 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.

Main problems and reasons for restoration

Main restoration and management measures

		Year of implementation

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

@@ Rivi 2: / Rivi 2: @@
 |Description={{LakeAdmin description}}
 |Ylläpito=Asiantuntija
+}}
+{{Lake problem
+|Problem=External phosphorus loading from diffuse sources
+|Additional information=Mean annual load of phosphorus (from diffuse and point sources): 54 kg
+}}
+{{Lake problem
+|Problem=External phosphorus loading from point sources
+|Additional information=Mean annual load of phosphorus (from diffuse and point sources): 54 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
+}}
+{{Lake problem
+|Problem=Other
+|Additional information=Urban stormwater
+}}
+{{Restoration measure
+|Measure=Reduction of external nutrient load from point sources
+|Start date=1980
+|Additional information=Current P-reduction from sewage water: 95%
+}}
+{{Restoration measure
+|Measure=Biomanipulation by fish removal
+}}
+{{Restoration measure
+|Measure=Aeration of hypolimnion
+}}
+{{Restoration measure
+|Measure=Macrophyte  removal
+}}
+{{Restoration measure
+|Measure=Other
+|Additional information=Chemical inactivation of phosphorus
 }}