• Assessing critical load exceedances and ecosystem impacts of anthropogenic nitrogen and sulphur deposition at unmanaged forested catchments in Europe 

      Forsius, Martin; Posch, Maximilian; Holmberg, Maria; Vuorenmaa, Jussi; Kleemola, Sirpa; Augustaitis, Algirdas; Beudert, Burkhard; Bochenek, Witold; Clarke, Nicholas; de Wit, Heleen; Dirnböck, Thomas; Frey, Jane; Grandin, Ulf; Hakola, Hannele; Kobler, Johannes; Krám, Pavel; Lindroos, Antti-Jussi; Löfgren, Stefan; Pecka, Tomasz; Rönnback, Pernilla; Skotak, Krzysztof; Szpikowski, Józef; Ukonmaanaho, Liisa; Valinia, Salar; Váňa, Milan (Peer reviewed; Journal article, 2021)
      Anthropogenic emissions of nitrogen (N) and sulphur (S) compounds and their long-range transport have caused widespread negative impacts on different ecosystems. Critical loads (CLs) are deposition thresholds used to ...
    • Cleaner air reveals growing influence of climate on dissolved organic carbon trends in northern headwaters 

      de Wit, Heleen; Stoddard, John L.; Monteith, Donald T.; Sample, James E.; Austnes, Kari; Couture, Suzanne; Fölster, Jens; Higgins, Scott N.; Houle, Daniel; Hruška, Jakub; Krám, Pavel; Kopáček, Jiří; Paterson, Andrew M.; Valinia, Salar; Van Dam, Herman; Vuorenmaa, Jussi; Evans, Chris D. (Peer reviewed; Journal article, 2021)
      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 ...
    • Climate mitigation and intensified forest management in Norway: To what extent are surface waters safeguarded? 

      Sundnes, Frode; Karlsson, Marianne; Platjouw, Froukje Maria; Clarke, Nicholas; Kaste, Øyvind; Valinia, Salar (Peer reviewed; Journal article, 2020)
      While the role of forestry in mitigating climate change is increasingly subject to political commitment, other areas, such as water protection, may be at risk. In this study, we ask whether surface waters are sufficiently ...
    • Current Browning of Surface Waters Will Be Further Promoted by Wetter Climate 

      de Wit, Heleen A.; Valinia, Salar; Weyhenmeyer, Gesa A; Futter, Martyn N.; Kortelainen, Pirkko; Austnes, Kari; Hessen, Dag O; Raike, Antti; Laudon, Hjalmar; Vournenmaa, Jussi (Journal article; Peer reviewed, 2016)
      Browning of surface waters because of increasing terrestrial dissolved organic carbon (OC) concentrations is a concern for drinking water providers and can impact land carbon storage. We show that positive trends in OC in ...
    • Currently legislated decreases in nitrogen deposition will yield only limited plant species recovery in European forests 

      Dirnböck, Thomas; Pröll, Gisela; Austnes, Kari; Beloica, Jelena; Beudert, Burkhard; Canullo, Robert; De Marco, Alessandra; Fornasier, Maria Francesca; Futter, Martyn; Goergen, Klaus; Grandin, Ulf; Holmberg, Maria; Lindroos, Antti-Jussi; Mirtl, Michael; Neirynck, Johan; Pecka, Tomasz; Nieminen, Tiina Maileena; Nordbakken, Jørn-Frode; Posch, Maximilian; Reinds, Gert-Jan; Rowe, Edwin C; Salemaa, Maija; Scheuschner, Thomas; Starlinger, Franz; Uzieblo, Aldona Katarzyna; Valinia, Salar; Weldon, James; Wamelink, Wieger G W; Forsius, Martin (Journal article; Peer reviewed, 2018)
      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 ...
    • Historiske og fremtidige endringer i løst organisk karbon i Farrisvann 

      Valinia, Salar; Garcia, Carolina Olid; Meyer-Jacob, Carsten; Bindler, Richard (NIVA-rapport;7111, Research report, 2017)
      I denne rapporten analyserer vi med bruk av sedimenter og modellering historiske og fremtidige trender i organisk karbon Farrisvann. Vi har brukt en historiske sediment-rekonstruksjon fra en representativ referansesjø, ...
    • Intensified forestry as a climate mitigation measure alters surface water quality in low intensity managed forests 

      Valinia, Salar; Kaste, Øyvind; Wright, Richard F. (Peer reviewed; Journal article, 2020)
      Climate change has led to a focus on forest management techniques to increase carbon (C) sequestration as a mitigation measure. Fertilisation and increased removal of biomass have been proposed. But these and other forest ...
    • Intensified forestry as a climate mitigation measure – how can it affect critical loads for S and N deposition? 

      Kaste, Øyvind; Wright, Richard Frederic; Valinia, Salar (NIVA-rapport;7436, Research report, 2019)
      More intensive forestry has been proposed in Norway as a climate mitigation measure. Growing forests capture CO2 from the atmosphere and the harvested biomass can comprise a carbon sink. Changes in forestry practices, ...
    • Modellbasert klassifisering av forsuringstilstand i innsjøer uten måledata 

      Austnes, Kari; Lund, Espen; Valinia, Salar; Cosby, Bernard J. (NIVA-rapport;7047, Research report, 2016)
      Formålet med dette arbeidet var å utarbeide en områdebasert klassifisering, som kan benyttes til klassifisering av forsuringstilstand i norske innsjøer uten måledata. Områdeklassifiseringen ble basert på modellering av 990 ...
    • Modelling study of soil C, N and pH response to air pollution and climate change using European LTER site observations 

      Holmberg, Maria; Aherne, Julian; Austnes, Kari; Beloica, Jelena; De Marco, Alessandra; Dirnböck, Thomas; Fornasier, Maria Francesca; Goergen, Klaus; Futter, Martyn; Lindroos, Antti-Jussi; Krám, Pavel; Neirynck, Johan; Nieminen, Tiina Maileena; Pecka, Tomasz; Posch, Maximilian; Pröll, Gisela; Rowe, Ed C.; Scheuschner, Thomas; Schlutow, Angela; Valinia, Salar; Forsius, Martin (Journal article; Peer reviewed, 2018)
      Current climate warming is expected to continue in coming decades, whereas high N deposition may stabilize, in contrast to the clear decrease in S deposition. These pressures have distinctive regional patterns and their ...
    • Pipes or chimneys? For carbon cycling in small boreal lakes, precipitation matters most 

      de Wit, Heleen A; Couture, Raoul-Marie; Jackson-Blake, Leah; Futter, Martyn N.; Valinia, Salar; Austnes, Kari; Guerrero, Jose-Luis; Lin, Yan (Journal article; Peer reviewed, 2018)
      Are small lakes passive pipes transporting terrigenous organic carbon (dissolved organic carbon [DOC]), or chimneys for CO2 release in the landscape? Using a unique combination of 30‐yr measurements, sediment dating and ...
    • Proceedings of the 31st Task Force meeting of the ICP Waters Programme in Monte Verità, Switzerland, October 6-8, 2015. ICP Waters report 126/2016 

      Valinia, Salar; Steingruber, Sandra; de Wit, Heleen - Project manager (NIVA-rapport;7003, Research report, 2016)
      Proceedings of the 31st Task Force meeting of the ICP Waters Programme in Monte Verità, Norway, October 6 – 8, 2015. National contributions from Russia, Italy, Switzerland, Finland, Canada, Sweden, and Norway.
    • Proceedings of the 32nd Task Force meeting of the ICP Waters Programme in Asker, Oslo, May 24-26, 2016. ICP Waters report 128/2016 

      Valinia, Salar; de Wit, Heleen; de Wit, Heleen - Project manager (NIVA-rapport;7090, Research report, 2016-11)
      Proceedings of the 32nd Task Force meeting of the ICP Waters Programme in Asker, Norway, May 24-26, 2016. National contributions from Russia and Norway.
    • The potential effects on water quality of intensified forest management for climate mitigation in Norway 

      Futter, Martyn; Clarke, Nicholas; Kaste, Øyvind; Valinia, Salar (NIVA-rapport;7363, Research report, 2019)
      The objective of this study was to make an overview assessment of the potential effects of intensified forest management, promoted by the Norwegian government as a climate mitigation measure, on water quality in Norwegian ...