Kari Austnes

Biographic Data

ID6015669
NAMEKari Austnes
GIVEN NAMESKari
FAMILY NAMEAustnes
SIGNATUREAUSTNES K
AFFILIATIONSNorwegian Institute for Water Research
ORCID0000-0003-2618-0698
VERIFIEDYes
TOTAL WORKS6
TOTAL CITATIONS4
AUTHOR COUNT6
EDITOR COUNT0
FIRST PUBLICATION YEAR2008
LATEST PUBLICATION YEAR2021
H-INDEX1

  • Cleaner air reveals growing influence of climate on dissolved organic carbon trends in northern headwaters

    Open AccessHeleen A de Wit, John L Stoddard et al.ARTICLEEnvironmental Research Letters2021

    Surface water browning, the result of increasing concentrations of dissolved organic matter (DOM), has been widespread in northern ecosystems in recent decades. Here, we assess a database of 426 undisturbed headwater lakes and streams in Europe and North America for evidence of trends in DOM between 1990 and 2016. We describe contrasting changes in DOM trends in Europe (decelerating) and North America (accelerating), which are consistent with org…

  • Streamwater responses to reduced nitrogen deposition at four small upland catchments in Norway

    Open AccessØyvind Kaste, Kari Austnes et al.ARTICLEAMBIO2020Cited by: 1References: 27

    Reduced emissions of nitrogen (N) in Europe have resulted in decreasing atmospheric deposition since 1990. Long-term data (1988–2017) from four small Norwegian catchments located along gradients in N deposition, rainfall, and organic carbon (C) show different responses to 25–30% reductions in N deposition during the same period. At three sites the decreased N deposition caused reduced leaching of nitrate to surface water, whereas the westernmost …

  • Currently legislated decreases in nitrogen deposition will yield only limited plant species recovery in European forests

    Open AccessThomas Dirnböck, Gisela Pröll et al.ARTICLEEnvironmental Research Letters2018

    Atmospheric nitrogen (N) pollution is considered responsible for a substantial decline in plant species richness and for altered community structures in terrestrial habitats worldwide. Nitrogen affects habitats through direct toxicity, soil acidification, and in particular by favoring fast-growing species. Pressure from N pollution is decreasing in some areas. In Europe (EU28), overall emissions of NO x declined by more than 50% while NH 3 declin…

  • Manipulation of Snow in Small Headwater Catchments at Storgama, Norway

    Øyvind Kaste, Kari Austnes et al.ARTICLEAMBIO2008Cited by: 2

    We have manipulated the winter-time soil temperature regime of small headwater catchments in a montane heathland area of southern Norway to study the possible effects on concentrations and fluxes of inorganic nitrogen in runoff. The experiments included extra insulation of soils in two catchments to prevent subzero temperatures during winter, and removal of snow in two other catchments to promote soil frost. Increased soil temperatures during win…

  • Manipulation of Snow in Small Headwater Catchments at Storgama, Norway

    Kari Austnes, Øyvind Kaste et al.ARTICLEAMBIO2008Cited by: 1References: 3

    Projected increases in winter temperature due to future climate change may cause decreased snow accumulation at lower and intermediate altitudes in northern temperate regions. The resulting changes in soil temperature and water regime may affect the leaching of total organic carbon (TOC) and total organic nitrogen (TON). We manipulated the snow cover of small headwater catchments in a montane heathland area of southern Norway to quantify its effe…

  • Manipulation of Precipitation in Small Headwater Catchments at Storgama, Norway

    Ståle Haaland, Kari Austnes et al.ARTICLEAMBIO2008References: 1

    Projected changes in climate in Southern Norway include increases in summer and autumn precipitation. This may affect leaching of dissolved organic matter (DOM) from soils. Effects of experimentally added extra precipitation (10 mm week) during the growing season of 3 years (2004-2006) to small headwater catchments at Storgama (59 degrees 0'N, 550-600 m a.s.l.) on leaching of total organic carbon (TOC) and total organic nitrogen (TON) were assess…