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dc.contributor.authorThrane, Jan-Erik
dc.contributor.authorde Wit, Heleen
dc.contributor.authorAustnes, Kari
dc.date.accessioned2022-01-03T08:50:19Z
dc.date.available2022-01-03T08:50:19Z
dc.date.created2021-12-13T12:40:53Z
dc.date.issued2021
dc.identifier.isbn978-82-577-7416-5
dc.identifier.issn1894-7948
dc.identifier.urihttps://hdl.handle.net/11250/2835718
dc.descriptionProject Manager Heleen de Witen_US
dc.description.abstractNitrogen deposition has a potentially eutrophying impact on oligotrophic freshwaters. Here we present a data analysis and a literature review with a joint focus on nitrogen (N) limitation in oligotrophic lakes and rivers. The data analysis consists of a Nordic lake dataset where relations between algal biomass (chlorophyll a), water chemistry and N deposition are investigated, and an analysis of element stoichiometry (nitrogen : phosphorus ratios) in Norwegian natural rivers. The literature review includes international publications on N limitation from a wide variation of monitoring and experimental studies. The data analysis and literature both support that N limitation exists in surface waters that receive low N deposition and that elevated N deposition can shift an ecosystem from N to P limitation. The results are used to review and revise ranges of critical loads of nitrogen for surface waters, as a contribution to the ongoing review and revision of empirical critical loads under the Convention on Long-range Transboundary Air Pollution.en_US
dc.language.isoengen_US
dc.publisherNorsk institutt for vannforskningen_US
dc.relation.ispartofNIVA-rapport
dc.relation.ispartofseriesNIVA-rapport;7680
dc.relation.ispartofseriesICP Waters report;146/2021
dc.subjectTålegrenseren_US
dc.subjectCritical loadsen_US
dc.subjectNitrogen avsetningen_US
dc.subjectNitrogen depositionen_US
dc.subjectICP Watersen_US
dc.subjectICP Watersen_US
dc.subjectInnsjøer og elveren_US
dc.subjectSurface watersen_US
dc.titleEffects of nitrogen on nutrient-limitation in oligotrophic northern surface watersen_US
dc.typeResearch reporten_US
dc.description.versionpublishedVersionen_US
dc.rights.holder© Norsk institutt for vannforskning/Norwegian Institute for Water Research. The publication can be cited freely if the source is stated.en_US
dc.subject.nsiVDP::Matematikk og naturvitenskap: 400en_US
dc.subject.nsiVDP::Mathematics and natural scienses: 400en_US
dc.source.pagenumber37en_US
dc.source.issue7680en_US
dc.identifier.cristin1967740
cristin.ispublishedtrue
cristin.fulltextoriginal


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