Blar i NIBIO Brage på forfatter "Astrup, Rasmus Andreas"
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Den totale biomassen av trær i Norge. En tabellsamling
Løken, Øivind; Eriksen, Rune; Astrup, Rasmus Andreas; Eid, Tron Haakon (Ressursoversikt fra Skog og landskap;01/2012, Research report, 2012)Bruken av bioenergi vil øke betraktelig i årene som kommer. Politisk ligger det målsettinger om en dobling av årlig bruk fra 14 TWh i 2008 til 28 TWh i 2020. For å nå målet om en økning med 14 TWh innen 2020 vil skogen ... -
Depth-to-water maps as predictors of rut severity in fully mechanized harvesting operations
Heppelmann, Joachim; Talbot, Bruce; Antón Fernandéz, Clara; Astrup, Rasmus Andreas (Peer reviewed; Journal article, 2022-03-14)The preservation of the functionality of forest soil is a key aspect in planning mechanized harvesting operations. Therefore, knowledge and information about stand and soil characteristics are vital to the planning process. ... -
Detection and Classification of Root and Butt-Rot (RBR) in Stumps of Norway Spruce using RGB Images and Machine Learning
Ostovar, Ahmad; Talbot, Bruce; Puliti, Stefano; Astrup, Rasmus Andreas; Ola, Ringdahl (Journal article; Peer reviewed, 2019-04-01)Root and butt-rot (RBR) has a significant impact on both the material and economic outcome of timber harvesting, and therewith on the individual forest owner and collectively on the forest and wood processing industries. ... -
Detection of forest clear-cuts with shuttle radar topography mission (SRTM) and tandem-X InSAR data
Solberg, Svein; Astrup, Rasmus Andreas; Weydahl, Dan Johan (Journal article; Peer reviewed, 2013-10-24)The aim of this study was to determine whether forest clear-cuts during 2000–2011 could be detected as a decrease in surface height by combining Digital Surface Models (DSMs) from the Shuttle Radar Topography Mission (SRTM) ... -
The effect of tree and harvester size on productivity and harvester investment decisions
Ackerman, Simon A.; Talbot, Bruce; Astrup, Rasmus Andreas (Peer reviewed; Journal article, 2021-11-02)Long-term machine-derived data sets comprising 140,000 trees were collected from four harvesters of equal age and similar working conditions, into two machine size classes, viz. two Ponsse Bears and two smaller Ponsse ... -
Effekter av ulike miljøhensyn på tilgjengelig skogareal og volum i norske skoger
Søgaard, Gunnhild; Eriksen, Rune; Astrup, Rasmus Andreas; Øyen, Bernt-Håvard (Rapport fra Skog og landskap;02/2012, Research report, 2012)I en bærekraftig skogforvaltning er det mange hensyn som må balanseres. Mange av disse hensynene er formelt ivaretatt i lovverk og forskrifter og gjennom miljøsertifisering. Skogbruksloven med tilhørende forskrifter er ... -
Estimation of Forest Growing Stock Volume with UAV Laser Scanning Data: Can It Be Done without Field Data?
Puliti, Stefano; Breidenbach, Johannes; Astrup, Rasmus Andreas (Peer reviewed; Journal article, 2020-04-14)Laser scanning data from unmanned aerial vehicles (UAV-LS) offer new opportunities to estimate forest growing stock volume ( V ) exclusively based on the UAV-LS data. We propose a method to measure tree attributes and using ... -
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 ... -
Forest Parameter Prediction Using an Image-Based Point Cloud: A Comparison of Semi-ITC with ABA
Rahlf, Johannes; Breidenbach, Johannes; Solberg, Svein; Astrup, Rasmus Andreas (Journal article; Peer reviewed, 2015)Image-based point clouds obtained using aerial photogrammetry share many characteristics with point clouds obtained by airborne laser scanning (ALS). Two approaches have been used to predict forest parameters from ALS: the ... -
Framskrivninger for arealbrukssektoren – under FNs klimakonvensjon, Kyotoprotokollen og EUs rammeverk
Søgaard, Gunnhild; Mohr, Christian Wilhelm; Antón-Fernández, Clara; Alfredsen, Gry; Astrup, Rasmus Andreas; Breidenbach, Johannes; Eriksen, Rune; Granhus, Aksel; Smith, Aaron (NIBIO Rapport;5(114) 2019, Research report, 2019-12)I denne rapporten presenteres framskrivninger for opptak og utslipp fra arealbrukssektoren (eng. Land Use, Land-Use Change and Forestry; LULUCF) frem til 2100. Framskrivninger av opptak og utslipp av CO2 og andre klimagasser ... -
Framskrivninger for skog og andre landarealer (LULUCF-sektoren)
Søgaard, Gunnhild; Astrup, Rasmus Andreas; Antón-Fernández, Clara; Dalsgaard, Lise; Borgen, Signe Kynding; Von Lüpke, Nikolas (Rapport fra skog og landskap;, Research report, 2015)Framskrivninger av opptak og utslipp av CO2 og andre klimagasser fra skog og andre landarealer (LULUCF-sektoren) fram til 2120, utført i tråd med metodikken brukt i klimagassregnskapet for Norge i 2014 (Miljødirektoratet ... -
Harvested area did not increase abruptly—how advancements in satellite-based mapping led to erroneous conclusions
Breidenbach, Johannes; Ellison, David; Petersson, Hans; Korhonen, Kari T.; Henttonen, Helena M.; Wallerman, Jörgen; Fridman, Jonas; Gobakken, Terje; Astrup, Rasmus Andreas; Næsset, Erik (Peer reviewed; Journal article, 2022-02-22)Key message: Using satellite-based maps, Ceccherini et al. (Nature 583:72-77, 2020) report abruptly increasing harvested area estimates in several EU countries beginning in 2015. Using more than 120,000 National Forest ... -
Improving living biomass c-stock loss estimates by combining optical satellite, airborne laser scanning, and nfi data
Breidenbach, Johannes; Ivanovs, Janis; Kangas, Annika; Nord-Larsen, Thomas; Nilsson, Mats; Astrup, Rasmus Andreas (Peer reviewed; Journal article, 2021-02-16)Policy measures and management decisions aimed at enhancing the role of forests in mitigating climate change require reliable estimates of carbon (C)-stock dynamics in greenhouse gas inventories (GHGIs). The aim of this ... -
Inferring Surface Albedo Prediction Error Linked to Forest Structure at High Latitudes
Bright, Ryan M.; Eisner, Stephanie; Lund, Marianne Tronstad; Majasalmi, Titta; Myhre, Gunnar; Astrup, Rasmus Andreas (Journal article; Peer reviewed, 2018-05-17)Predicting the surface albedo of a forest of a given species composition or plant functional type is complicated by the wide range of structural attributes it may display. Accurate characterizations of forest structure are ... -
Klimagassregnskap for skogsdriften til Statskog
Astrup, Rasmus Andreas; Svensson, Arvid; Sevillano, Ignacio; Fischer, Carolin; Fernández, Clara Antón (NIBIO-rapport;7(155) 2021, Research report, 2021-09)Statskog eier om lag 8% av Norges produktive skogareal. Skogen er dominert av en stor andel hogstmoden skog og en overvekt av skog på lavere boniteter. Tilveksten i skogen er svakt avtagende noe som sannsynligvis skyldes ... -
Klimakur 2030 – beskrivelse av utvalgte klimatiltak knyttet til skog
Søgaard, Gunnhild; Alfredsen, Gry; Antón-Fernández, Clara; Astrup, Rasmus Andreas; Blom, Hans H.; Clarke, Nicholas; Eriksen, Rune; Granhus, Aksel; Hanssen, Kjersti Holt; Hietala, Ari Mikko; Mohr, Christian Wilhelm; Nygaard, Per Holm; Solberg, Svein; Steffenrem, Arne (NIBIO Rapport;6(9) 2020, Research report, 2020-02)Skogen i Norge har et årlig netto opptak i underkant av 30 mill. tonn CO2. Størrelsen på opptaket påvirkes av forvaltningen av skogarealene, både gjennom endringer i totalarealet (avskoging og påskoging), og forvaltningen ... -
Klimakur 2030 – beskrivelse av utvalgte klimatiltak knyttet til skog. Supplement.
Søgaard, Gunnhild; Alfredsen, Gry; Fernández, Clara Antón; Astrup, Rasmus Andreas; Belbo, Helmer; Clarke, Nicholas; Eriksen, Rune; Granhus, Aksel; Hanssen, Kjersti Holt; Hietala, Ari Mikko; Kockum, Frans; Mohr, Christian Wilhelm; Nordbakken, Jørn-Frode; Stokland, Jogeir Nicolai; Sverker, Jennie; Økland, Tonje (NIBIO rapport;6(153) 2020, Research report, 2020-11)Det årlige netto opptaket i skogen i Norge økte frem til 2009 (over 35 mill. tonn), og har etter det vist en avtakende trend. I 2018 var det et netto opptak på i underkant av 28 millioner tonn CO2- ekvivalenter. Størrelsen ... -
Large scale mapping of forest attributes using heterogeneous sets of airborne laser scanning and National Forest Inventory data
Hauglin, Marius; Rahlf, Johannes; Schumacher, Johannes; Astrup, Rasmus Andreas; Breidenbach, Johannes (Peer reviewed; Journal article, 2021-09-29)Background The Norwegian forest resource map (SR16) maps forest attributes by combining national forest inventory (NFI), airborne laser scanning (ALS) and other remotely sensed data. While the ALS data were acquired over ... -
Longitudinal height-diameter curves for Norway spruce, Scots pine and silver birch in Norway based on shape constraint additive regression models
Schmidt, Matthias; Breidenbach, Johannes; Astrup, Rasmus Andreas (Journal article; Peer reviewed, 2018-02-12)Background: Generalized height-diameter curves based on a re-parameterized version of the Korf function for Norway spruce (Picea abies (L.) Karst.), Scots pine (Pinus sylvestris L.) and silver birch (Betula pendula Roth) ... -
Mapping forest age using National Forest Inventory, airborne laser scanning, and Sentinel-2 data
Schumacher, Johannes; Hauglin, Marius; Astrup, Rasmus Andreas; Breidenbach, Johannes (Peer reviewed; Journal article, 2020-11-10)Background The age of forest stands is critical information for forest management and conservation, for example for growth modelling, timing of management activities and harvesting, or decisions about protection areas. ...