Publikasjoner
NIBIOs ansatte publiserer flere hundre vitenskapelige artikler og forskningsrapporter hvert år. Her finner du referanser og lenker til publikasjoner og andre forsknings- og formidlingsaktiviteter. Samlingen oppdateres løpende med både nytt og historisk materiale. For mer informasjon om NIBIOs publikasjoner, besøk NIBIOs bibliotek.
2013
Forfattere
Leif Sundheim Christer Magnusson Trond Rafoss Halvor Solheim Bjørn Økland Trond Hofsvang Arild Sletten Anne Marte Tronsmo Daniel FløSammendrag
Det er ikke registrert sammendrag
Forfattere
Jean-Pierre Sarthou Jean-Philippe Choisis A. Amossé Michaela Arndorfer Debra Bailey Katalin Balázs G. Balent M. Deconchat Peter Dennis Sebastian Eiter Wendy Fjellstad Jürgen Friedel Philippe Jeanneret Rob Jongman Max Kainz Gerardo Moreno Annie Ouin Maurizio Guido Paoletti Philippe Pointereau Siyka Stoyanova Davide Viaggi Aude Vialatte Sebastian Wolfrum Felix HerzogSammendrag
Det er ikke registrert sammendrag
Forfattere
Jan Alexander Augustine Arukwe Aksel Bernhoft Margaretha Haugen Gro Ingunn Hemre Ragna Bogen Hetland Torsten Källqvist Åshild Krogdahl Jørgen Fr Lassen Audun Helge Nerland Bjørn Næss Inger-Lise Steffensen Janneche Utne Skåre Leif Sundheim Ole Torrissen Olav ØsteråsSammendrag
Det er ikke registrert sammendrag
Forfattere
Chuan Li Heidi Rudi Eric J. Stockinger Hongmei Cheng Moju Cao Samuel E. Fox Todd C. Mockler Bjørge Westereng Siri Fjellheim Mats Höglind Odd Arne Rognli Simen Rød SandveSammendrag
Det er ikke registrert sammendrag
Forfattere
Gayaneh Kyureghian Rodolfo M. Jr. NaygaSammendrag
Det er ikke registrert sammendrag
Sammendrag
Det er ikke registrert sammendrag
Sammendrag
Det er ikke registrert sammendrag
Forfattere
Johannes Breidenbach Clara Antón Fernández Hans Petersson Ronald E. McRoberts Rasmus AstrupSammendrag
National Forest Inventories (NFIs) provide estimates of forest parameters for national and regional scales. Many key variables of interest, such as biomass and timber volume, cannot be measured directly in the field. Instead, models are used to predict those variables from measurements of other field variables. Therefore, the uncertainty or variability of NFI estimates results not only from selecting a sample of the population but also from uncertainties in the models used to predict the variables of interest. The aim of this study was to quantify the model-related variability of Norway spruce (Picea abies [L.] Karst) biomass stock and change estimates for the Norwegian NFI. The model-related variability of the estimates stems from uncertainty in parameter estimates of biomass models as well as residual variability and was quantified using a Monte Carlo simulation technique. Uncertainties in model parameter estimates, which are often not available for published biomass models, had considerable influence on the model-related variability of biomass stock and change estimates. The assumption that the residual variability is larger than documented for the models and the correlation of within-plot model residuals influenced the model-related variability of biomass stock change estimates much more than estimates of the biomass stock. The larger influence on the stock change resulted from the large influence of harvests on the stock change, although harvests were observed rarely on the NFI sample plots in the 5-year period that was considered. In addition, the temporal correlation between model residuals due to changes in the allometry had considerable influence on the model-related variability of the biomass stock change estimate. The allometry may, however, be assumed to be rather stable over a 5-year period. Because the effects of model-related variability of the biomass stock and change estimates were much smaller than those of the sampling-related variability, efforts to increase the precision of estimates should focus on reducing the sampling variability. If the model-related variability is to be decreased, the focus should be on the tree fractions of living branches as well as stump and roots.
Forfattere
Per VesterbuktSammendrag
Denne rapporten presenterer skjøtselsplaner for 6 lokaliteter med slåttemark (5 i Stjørdal kommune, 1 i Namdalseid kommune) på oppdrag fra Fylkesmannen i Nord-Trøndelag. Arbeidet er utført i forbindelse med nasjonal handlingsplan for slåttemarker, en naturtype som i dag er sterkt truet i Norge.
Forfattere
Georgia S. Papoutsi Andreas C. Drichoutis Rodolfo M. Jr. NaygaSammendrag
Det er ikke registrert sammendrag