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Overvåking av vassdrag på Romerike 2009

Authors: Lindholm, M.; Gjemlestad, Lars J.; Haaland, Ståle;

Overvåking av vassdrag på Romerike 2009

Abstract

Rapporten gir en fremstilling av biologiske og vannkjemiske data innsamlet i 2009 i vassdragene Leira og Nitelva på Romerike. Dataene utgjør andre året av en treårig overvåkning, igangsatt i henhold til avtale med Interkommunal Innkjøpsordning Nedre Romerike (IINR). Dataene er vurdert i forhold til tilstandskriterier gitt i EUs Rammedirektiv for vann (Vanndirektivet). Data for flere andre mindre vassdrag i regionen er også presentert. 30 stasjoner er gitt en foreløpig klassifisering av økologisk tilstand etter både biologiske og kjemiske støtteparametre, ytterligere 26 er gitt en foreløpig klassifisering etter kjemiske støtteparametre, og 3 stasjoner er gitt en foreløpig klassifisering kun etter biologiske parametere. Årets data indikerer at bare de øverste stasjonene i Leira og Nitelva befinner seg over grensen mellom god/moderat økologisk tilstand. De nedre delene av vassdragene er utsatt for eutrofiering. Metodiske vanskeligheter med klassifisering av leirvassdrag drøftes.

Interkommunal Innkjøpsordning Nedre Romerike (IINR)

Country
Norway
Related Organizations
Keywords

romerike, biological monitoring, eus vanndirektiv, water framework directive, fysisk-kjemisk overvåkning, physical-chemical monitoring, vannforvaltning, VDP::Matematikk og naturvitenskap: 400, biologisk overvåkning

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green