Ero sivun ”Harvanjärvi (04.582.1.016)/Restoration project 2009-2011” versioiden välillä

Nykyinen versio 19. toukokuuta 2016 kello 11.33

Tämä on asiantuntijan ylläpitämä sivu. Tietojen muokkaaminen on estetty tavallisilta käyttäjiltä.

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This page describes the restoration of Harvanjärvi (04.582.1.016) – a Virhe lausekkeessa: tunnistamaton välimerkki ”,”.Virhe lausekkeessa: tunnistamaton välimerkki ”,”. lake in the Pohjois-Savon maakunta region of Finland. The restoration started in 2009 and ended in 2011. The restoration has been evaluated as successful.

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

Further information

@@ Rivi 1: / Rivi 1: @@
+{{Restoration project
+|Description={{LakeAdmin description}}
+|Project status=completed
+|Start date=2009
+|End date=2011
+|Rating=successful
+|Ylläpito=expert
+}}
 {{Lake problem
 |Problem=External phosphorus loading from diffuse sources
-|Value=1
 |Additional information=Mean annual loading of phosphorus: 209 kg (field 103 kg, forest 54 kg, rural population 48 kg, swamp 4 kg)
-}}
-{{Lake problem
-|Problem=External phosphorus loading from  point sources
-|Value=0
-|Additional information=
 }}
 {{Lake problem
 |Problem=Internal phosphorus loading
-|Value=1
-|Additional information=
 }}
 {{Lake problem
 |Problem=Blooms of cyanobacteria
-|Value=1
-|Additional information=
 }}
 {{Lake problem
 |Problem=Too high density of cyprinids
-|Value=1
-|Additional information=
 }}
 {{Lake problem
 |Problem=Overgrowth of macrophytes
-|Value=0
-|Additional information=
-}}
-{{Restoration measure
-|Measure=Reduction of external nutrient load from point sources
-|Value=0
-|Start date=
-|End date=
-|Additional information=
 }}
 {{Restoration measure
 |Measure=On site sewage treatment of scattered settlement
-|Value=1
-|Start date=
-|End date=
 |Additional information=Estimated reduction from waste waters 45 %
-}}
-{{Restoration measure
-|Measure=Wetlands or sedimentation ponds
-|Value=0
-|Start date=
-|End date=
-|Additional information=
-}}
-{{Restoration measure
-|Measure=Agricultural management practices
-|Value=0
-|Start date=
-|End date=
-|Additional information=
 }}
 {{Restoration measure
 |Measure=Biomanipulation by fish removal
-|Value=1
-|Start date=
-|End date=
-|Additional information=
 }}
 {{Restoration measure
 |Measure=Aeration of hypolimnion
-|Value=1
-|Start date=
-|End date=
-|Additional information=
-}}
-{{Restoration measure
-|Measure=Macrophyte removal
-|Value=0
-|Start date=
-|End date=
-|Additional information=
 }}
 {{Restoration measure
 |Measure=Dredging
-|Value=1
-|Start date=
-|End date=
-|Additional information=
-}}
-{{Restoration measure
-|Measure=Other
-|Value=1
-|Start date=
-|End date=
-|Additional information=Improving the efficiency of onsite waste water treatment system
 }}
 {{Water quality value
@@ Rivi 98: / Rivi 42: @@
 |Type=Median
 |Period=Before restoration
-|Additional information=Measured during growing season
+|Additional information=Median value from n measures during growing season
 }}
 {{Water quality value
@@ Rivi 106: / Rivi 50: @@
 |Type=Median
 |Period=After restoration
-|Additional information=Measured during growing season
+|Additional information=Median value from n measures during growing season
+}}
+{{Water quality value
+|Parameter=Total nitrogen
+|Unit=µg/l
+|Value=510
+|Type=Median
+|Period=Before restoration
+|Additional information=Median value from n measures during growing season
 }}
 {{Water quality value
 |Parameter=Total nitrogen
 |Unit=µg/l
-|Before=510
+|Value=450
-|After=450
 |Type=Median
-|Additional information=Measured during growing season
+|Period=After restoration
+|Additional information=Median value from n measures during growing season
 }}
 {{Water quality value
 |Parameter=Alkalinity
 |Unit=meq/l
-|Before=0,26
+|Value=0,26
-|After=0,26
+|Value=0,26
 |Type=Median
-|Additional information=Measured during growing season
+|Period=Before restoration
+|Additional information=Median value from n measures during growing season
+}}
+{{Water quality value
+|Parameter=Alkalinity
+|Unit=meq/l
+|Value=0,26
+|Type=Median
+|Period=After restoration
+|Additional information=Median value from n measures during growing season
 }}
 {{Water quality value
 |Parameter=Transparency
 |Unit=m
-|Before=1,37
+|Value=1,37
 |Type=Median
-|Additional information=Measured during growing season
+|Period=Before restoration
+|Additional information=Median value from n measures during growing season
 }}
 {{Water quality value
 |Parameter=Chlorophyll-a
 |Unit=µg/l
-|Before=23
+|Value=23
-|After=23
 |Type=Median
-|Additional information=Measured during growing season
+|Period=Before restoration
+|Additional information=Median value from n measures during growing season
 }}
-{{Restoration project
+{{Water quality value
-|Description={{LakeAdmin description}}
+|Parameter=Chlorophyll-a
-|Partners=
+|Unit=µg/l
-|Start date=2009
+|Value=23
-|End date=2011
+|Type=Median
-|Rating=Succesful
+|Period=After restoration
-|Ylläpito=Asiantuntija
+|Additional information=Median value from n measures during growing season
 }}
 ==Further information==