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Overskridelser av tålegrenser for forsuring og nitrogen for Norge. Oppdatering med perioden 2012–2016

Authors: Austnes, Kari; Lund, Espen; Sample, James Edward; Aarrestad, Per Arild; Bakkestuen, Vegar; Aas, Wenche;

Overskridelser av tålegrenser for forsuring og nitrogen for Norge. Oppdatering med perioden 2012–2016

Abstract

Rapporten viser overskridelser av tålegrenser for forsuring av vann og jord, samt overgjødslingseffekter på vegetasjon, med avsetningsverdier for perioden 2012–2016. Det er kun en liten reduksjon i areal med overskridelse siden forrige periode: For vann, ved bruk av SSWCoaa-modellen er 7% av Norges areal overskredet (8% i forrige periode). Bruk av FABoaa-modellen, som forutsetter et mye større forsuringsbidrag fra nitrogen, gir en overskridelse på 19% av Norges areal (20% i forrige periode). Overskredet areal for overgjødslingseffekter på vegetasjon er 20% (21% i forrige periode). Tålegrensene for forsuring av skogsjord er ikke overskredet. Noen oppdateringer av tålegrensene har blitt gjort, primært for overgjødsling av vegetasjon. Det er også benyttet en ny metode for beregning av avsetninger. Ingen av endringene gav store forskjeller i totalt overskredet areal, men noen forskjeller i hvor man finner overskridelser og størrelsen på overskridelsene.

Prosjektleder Kari Austnes

Miljødirektoratet

Country
Norway
Related Organizations
Keywords

Vegetation, Overskridelser, Surface water, Critical loads, Tålegrenser, Overflatevann, Vegetasjon, VDP::Matematikk og naturvitenskap: 400, Exceedances, VDP::Mathematics and natural scienses: 400

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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