Blar i Divisjon for skog og utmark på dokumenttype "Journal article"

Viser treff 1-20 av 301

    • 76-year decline and recovery of aspen mediated by contrasting fire regimes: Longunburned, infrequent and frequent mixedseverity wildfire 

      Brewen, Cerena J.; Berrill, John-Pascal; Ritchie, Martin W.; Boston, Kevin; Dagley, Christa M.; Jones, Bobette; Coppoletta, Michelle; Burnett, Coye L. (Peer reviewed; Journal article, 2021-02-04)
      Quaking aspen (Populus tremuloides) is a valued, minor component on northeastern California landscapes. It provides a wide range of ecosystem services and has been in decline throughout the region for the last century. ...

    • A bi-band binary mask based land-use change detection using landsat 8 OLI imagery 

      Li, Xian; Zhao, Shuhe; Yang, Hong; Cong, Dianmin; Zhang, Zhaohua (Journal article; Peer reviewed, 2017-03-22)
      Land use and cover change (LUCC) is important for the global biogeochemical cycle and ecosystem. This paper introduced a change detection method based on a bi-band binary mask and an improved fuzzy c-means algorithm to ...

    • A carbon balance of Norway: terrestrial and aquatic carbon fluxes 

      de Wit, Heleen; Austnes, Kari; Hylen, Gro; Dalsgaard, Lise (Journal article; Peer reviewed, 2015-02-07)
      Northernlandscapes accumulate carbon in vegetation and soils while rivers transport significant amounts of land-derived carbon to coastal areas. Here, we quantify carbon sources and sinks in main ecosystems (forests, ...

    • A comparison of two methods of data collection for modelling productivity of harvesters: manual time study and follow-up study using on-board-computer stem records 

      Brewer, Julia; Talbot, Bruce; Belbo, Helmer; Ackerman, Pierre; Ackerman, Simon (Journal article; Peer reviewed, 2018-04-13)
      Productivity of a mechanized P. patula cut-to-length harvesting operation was estimated and modelled using two methods of data collection: manual time study and follow-up study using StanForD stem files. The objective of ...

    • A sensible climate solution for the boreal forest 

      Astrup, Rasmus Andreas; Bernier, Pierre Y.; Genet, Helene; Lutz, David A.; Bright, Ryan M. (Journal article; Peer reviewed, 2018-01-02)
      Climate change could increase fire risk across most of the managed boreal forest. Decreasing this risk by increasing the proportion of broad-leaved tree species is an overlooked mitigation–adaption strategy with multiple benefits.

    • Above-ground biomass change estimation using national forest inventory data with Sentinel-2 and Landsat 

      Puliti, Stefano; Breidenbach, Johannes; Schumacher, Johannes; Hauglin, Marius; Klingenberg, Torgeir Ferdinand; Astrup, Rasmus Andreas (Peer reviewed; Journal article, 2021-08-25)
      This study aimed at estimating total forest above-ground net change (ΔAGB; Gg) over five years (2014–2019) based on model-assisted estimation utilizing freely available satellite imagery. The study was conducted for a ...

    • The accuracy and precision of age determination by dental cementum annuli in four northern cervids 

      Veiberg, Vebjørn; Nilsen, Erlend Birkeland; Rolandsen, Christer Moe; Heim, Morten; Andersen, Roy; Holmstrøm, Frode; Meisingset, Erling L.; Solberg, Erling Johan (Peer reviewed; Journal article, 2020-10-23)
      Individual age is an important element in models of population demographics, but the limitations of the methods used for age determination are not always clear. We used known-age data from moose (Alces alces), red deer ...

    • Acetylation of Pinus radiata delays hydrolytic depolymerisation by the brown-rot fungus Rhondonia placenta 

      Beck, Harold Greeley; Hegnar, Olav Aaseth; Fossdal, Carl Gunnar; Alfredsen, Gry (Journal article; Peer reviewed, 2018-11-01)
      Acetylation of wood can provide protection against wood deteriorating fungi, but the exact degradation me- chanism remains unclear. The aim of this study was to determine the effect of acetylation of Pinus radiata wood ...

    • Agricultural grasslands buffer density effects in red deer populations 

      Mysterud, Atle; Langvatn, Rolf; Meisingset, Erling L.; Rivrud, Inger Maren (Peer reviewed; Journal article, 2022-12-29)
      Population densities of several cervid species have increased in recent decades in North America and Europe, and cervids frequently eat and damage agricultural crops. Competition and depletion of natural food resources are ...

    • An automatic pre-processing method to detect and reject signal artifacts from full-shift field-work sEMG recordings of bilateral trapezius activity 

      Østensvik, Tove Maria; Belbo, Helmer; Veiersted, Kaj Bo (Journal article; Peer reviewed, 2019)
      Bipolar surface EMG (sEMG) signals of the trapezius muscles bilaterally were recorded continuously with a frequency of 800 Hz during full-shift field-work by a four-channel portable data logger. After recordings of 60 ...

    • An enhanced forest classification scheme for modeling vegetation–climate interactions based on national forest inventory data 

      Majasalmi, Titta; Eisner, Stephanie; Astrup, Rasmus Andreas; Fridman, Jonas; Bright, Ryan M. (Journal article; Peer reviewed, 2018-01-18)
      Forest management affects the distribution of tree species and the age class of a forest, shaping its overall structure and functioning and in turn the surface–atmosphere exchanges of mass, energy, and momentum. In order ...

    • An inverse shortest path approach to find forwarder productivity functions 

      Søvde, Nils Egil; Astrup, Rasmus Andreas; Talbot, Bruce (Journal article; Peer reviewed, 2018-06-05)
      This paper presents an optimization model designed to find productivity functions for timber forwarding. Timber forwarding or skidding has for some 25 years been calculated using shortest path formulations on grid networks. ...

    • Anaerobic digestion affecting nitrous oxide and methane emissions from the composting process 

      Dietrich, Maria; Fongen, Monica; Føreid, Bente (Peer reviewed; Journal article, 2021-07-02)
      Composting and anaerobic digestion are the most common ways to treat organic residues. Sometimes the organic rest after anaerobic digestion is also composted. In this study we investigated greenhouse gas emissions from ...

    • An analysis of stand-level size distributions of decay-affected Norway spruce trees based on harvester data 

      Räty, Janne; Hietala, Ari Mikko; Breidenbach, Johannes; Astrup, Rasmus Andreas (Peer reviewed; Journal article, 2023-01-05)
      We studied size distributions of decay-affected Norway spruce trees using cut-to-length harvester data. The harvester data comprised tree-level decay and decay severity recordings from 101 final felling stands, which enabled ...

    • «Animal Sense» – elektronisk reinvarsling Lavkost-teknologi skal forhindre dyrepåkjørsler 

      Jørgensen, Grete Helen Meisfjord; Hansen, Inger; Eilertsen, Svein; Karlsson, J (NIBIO POP;6(25) 2020, Journal article, 2020-05)
      Når vilt, tamrein og husdyr skal krysse vei og jernbane, skjer ikke det alltid med et lykkelig resultat. I Europa har dyrepåkjørsler økt de siste 40 årene. I tillegg til å være et alvorlig velferdsproblem for dyr og ...

    • An annotated checklist of bryophytes of Europe, Macaronesia and Cyprus 

      Hodgetts, N.G.; Söderström, Lars; Blockeel, T.L.; Caspari, S.; Ignatov, M.S.; Konstantinova, N.A.; Lockhart, N.; Papp, B.; Schröck, C.; Sim-Sim, M.; Bell, David; Bell, N.E.; Blom, Hans H.; Bruggeman-Nannenga, M.A.; Brugués, M.; Enroth, J.; Flatberg, Kjell Ivar; Garilleti, R.; Hedenäs, L.; Holyoak, D.T.; Hugonnot, V.; Kariyawasam, I.; Köckinger, H.; Kučera, J.; Lara, F.; Porley, R.D. (Peer reviewed; Journal article, 2020-05-28)
      Introduction. Following on from work on the European bryophyte Red List, the taxonomically and nomenclaturally updated spreadsheets used for that project have been expanded into a new checklist for the bryophytes of Europe. ...

    • Annual variation in breeding success in boreal forest grouse: Four decades of monitoring reveals bottom-up drivers to be more important than predation 

      Wegge, Per; Moss, Robert; Rolstad, Jørund (Peer reviewed; Journal article, 2022-10-09)
      Knowledge of the temporal variation in reproductive success and its key driving factors is crucial in predicting animal population persistence. Few studies have examined the effects of a range of explanatory factors operating ...

    • Anti-resistensstrategi: skadedyr i vårkorn 

      Beachell, Andreas Myki; Folkedal, Annette; Johansen, Nina S; Strand, Einar (NIBIO POP;6(36) 2020, Journal article, 2020-10)
      Alle skadedyr kan utvikle resistens mot kjemiske midler dersom det sprøytes for ensidig og ofte. Dette temaarket gir informasjon om hvordan risikoen for resistens kan reduseres hos de viktigste skadedyrene i vårkorn (bygg, ...

    • Applications of DEA and SFA in benchmarking studies in forestry: state-of-the-art and future directions 

      Strange, Niels; Bogetoft, Peter; Ottaviani Aalmo, Giovanna; Talbot, Bruce; Holt, Anders Holm; Astrup, Rasmus Andreas (Peer reviewed; Journal article, 2021-05-17)
      The forestry sector is constantly looking for ways for making data-driven decisions and improving efficiency. The application of Data Envelopment Analysis (DEA) and Stochastic Frontier Analysis (SFA) allow the users to go ...

    • Assessing forest availability for wood supply in Europe 

      Alberdi, I.; Bender, S.; Riedel, T.; Avitable, V.; Boriaud, O.; Bosela, M.; Camia, A.; Cañellas, I.; Rego, F. Castro; Fischer, C.; Freudenschuß, A.; Fridman, J.; Gasparini, P.; Gschwantner, T.; Guerrero, S.; Kjartansson, B.T.; Kucera, M.; Lanz, A.; Marin, G.; Mubareka, S.; Notarangelo, M.; Nunes, L.; Pesty, B.; Pikula, T.; Redmond, J.; Rizzo, M.; Šebeň, V.; Snorrason, A.; Tomter, Stein Michael; Hernández, L. (Peer reviewed; Journal article, 2019-11-10)
      The quantification of forests available for wood supply (FAWS) is essential for decision-making with regard to the maintenance and enhancement of forest resources and their contribution to the global carbon cycle. The ...