Browsing NIBIO Brage by Author "Kjønaas, O. Janne"
Now showing items 1-11 of 11
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Boreal tree species change as a climate mitigation strategy: impact on ecosystem C and N stocks and soil nutrient levels
Kjønaas, O. Janne; Barcena, Teresa G.; Hylen, Gro; Nordbakken, Jørn-Frode; Økland, Tonje (Peer reviewed; Journal article, 2021-11-24)To increase the annual uptake of CO2 as well as the long-term storage of carbon (C) in forests, the Norwegian government consider large-scale replacements of native, deciduous forests with faster-growing species like Norway ... -
Effects of intensive biomass harvesting on forest soils in the Nordic countries and the UK: A meta-analysis
Clarke, Nicholas; Kiær, Lars Pødenphant; Kjønaas, O. Janne; Bárcena, Teresa G.; Vesterdal, Lars; Stupak, Inge; Finér, Leena; Jacobson, Staffan; Armolaitis, Kestutis; Lazdina, Dagnija; Stefánsdóttir, Helena Marta; Sigurdsson, Bjarni D. (Peer reviewed; Journal article, 2021-02-15)The use of biomass from forest harvesting residues or stumps for bioenergy has been increasing in the northern European region in the last decade. The present analysis is a regional review from Nordic and UK coniferous ... -
Effekter av planting av skog på nye arealer. Betydning for klima, miljø og næring
Søgaard, Gunnhild; Allen, Micky; Astrup, Rasmus; Belbo, Helmer; Bergseng, Even; Blom, Hans Haavardsholm; Bright, Ryan; Dalsgaard, Lise; Fernandez, Clara Anton; Gjerde, Ivar; Granhus, Aksel; Hanssen, Kjersti Holt; Kjønaas, O. Janne; Nygaard, Per Holm; Stokland, Jogeir; Sætersdal, Magne (NIBIO Rapport;5(3) 2019, Research report, 2019-02-09) -
Evaluating the terrestrial carbon dioxide removal potential of improved forest management and accelerated forest conversion in Norway
Bright, Ryan M.; Allen, Micky; Antón-Fernández, Clara; Belbo, Helmer; Dalsgaard, Lise; Eisner, Stephanie; Granhus, Aksel; Kjønaas, O. Janne; Søgaard, Gunnhild; Astrup, Rasmus Andreas (Peer reviewed; Journal article, 2020-06-19)As a carbon dioxide removal measure, the Norwegian government is currently considering a policy of large-scale planting of spruce (Picea abies (L) H. Karst) on lands in various states of natural transition to a forest ... -
Jordsmonnet er det største karbonlageret på landjorda
Kjønaas, O. Janne; Nilsen, Petter (Glimt fra skogforskningen;5-2004, Others, 2004) -
Karbondynamikk ved ulike hogstformer og avvirkningsstrategier. En litteraturstudie med fokus på Oslo kommuneskog.
Dalsgaard, Lise; Granhus, Aksel; Søgaard, Gunnhild; Andreassen, Kjell; Børja, Isabella; Clarke, Nicholas; Kjønaas, O. Janne; Stokland, Jogeir Nicolai (Oppdragsrapport fra Skog og Landskap;, Research report, 2015)Basert på en litteraturgjennomgang har vi vurdert konsekvenser av ulike hogstformer (flatehogst og lukket hogst med vekt på bledningshogst og konvertering av ensaldret skog til sjiktet skogstruktur egnet for bledning) samt ... -
The long-term fate of deposited nitrogen in temperate forest soils
Veerman, Liz; Kalbitz, Karsten; Gundersen, Per; Kjønaas, O. Janne; Moldan, Filip; Schleppi, Patrick; van Loon, Emiel E.; Schoorl, Jorien; Wessel, Wim; Tietema, Albert (Peer reviewed; Journal article, 2020-06-20)Increased anthropogenic nitrogen (N) inputs can alter the N cycle and affect forest ecosystem functions. The impact of increased N deposition depends among others on the ultimate fate of N in plant and soil N pools. ... -
Shift in tree species changes the belowground biota of boreal forests
Mundra, Sunil; Kauserud, Håvard; Økland, Tonje; Nordbakken, Jørn-Frode; Ransedokken, Yngvild Eidissen; Kjønaas, O. Janne (Peer reviewed; Journal article, 2022-03-20)The replacement of native birch with Norway spruce has been initiated in Norway to increase long-term carbon storage in forests. However, there is limited knowledge on the impacts that aboveground changes will have on the ... -
Soil depth matters: shift in composition and inter-kingdom co-occurrence patterns of microorganisms in forest soils
Mundra, Sunil; Kjønaas, O. Janne; Morgado, Luis; Krabberød, Anders Kristian; Ransedokken, Yngvild; Kauserud, Håvard (Peer reviewed; Journal article, 2021-02-06)Soil depth represents a strong physiochemical gradient that greatly affects soil-dwelling microorganisms. Fungal communities are typically structured by soil depth, but how other microorganisms are structured is less known. ... -
Soil texture analysis by laser diffraction and sedimentation and sieving–method and instrument comparison with a focus on Nordic and Baltic forest soils
Callesen, Ingeborg; Palviainen, Marjo; Armolaitis, Kęstutis; Rasmussen, Charlotte; Kjønaas, O. Janne (Peer reviewed; Journal article, 2023-06-23)Purpose: Laser diffraction (LD) for determination of particle size distribution (PSD) of the fine earth fraction appeared in the 1990s, partly substituting the Sieving and Sedimentation Method (SSM). Whereas previous ... -
Økologiske effekter av skogbrann
Joner, Erik; Kjønaas, O. Janne (Glimt fra skogforskningen;7-2004, Others, 2004)