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.
2016
Forfattere
Marcos Viejo Elena Carneros Hugh Cross YeonKyeong Lee Igor A. Yakovlev Carl Gunnar Fossdal Jorunn Elisabeth OlsenSammendrag
Det er ikke registrert sammendrag
Forfattere
Marcos Viejo Elena Carneros Hugh Cross YeonKyeong Lee Igor A. Yakovlev Carl Gunnar Fossdal Jorunn Elisabeth OlsenSammendrag
Det er ikke registrert sammendrag
Forfattere
Sebastian EiterRedaktører
Bibi Edinger PlumSammendrag
Det er ikke registrert sammendrag
Forfattere
Sebastian EiterRedaktører
Bibi Edinger PlumSammendrag
Det er ikke registrert sammendrag
Forfattere
Sebastian EiterSammendrag
Forskere i det europeiske COST-nettverket «Urban Agriculture Europe» har utviklet et felles begrepsapparat som grunnlag for politikkutforming. Urbant landbruk er definert i henhold til seks dimensjoner, og delt inn i de to hovedtypene urban gårdsdrift som næring, og urban hagedyrking med liten eller ingen økonomisk betydning. Mangfoldet som 14 undertyper av urbant landbruk representerer, gjør det til en arena for mange politikkfelt. For å kunne nytte det urbane landbrukets potensiale for økonomiske, sosiale, miljø- og helsemessige gevinster fullt ut, bør politikkfeltene fordele hovedansvaret for ulike typer urbant landbruk seg imellom.
Sammendrag
Det er ikke registrert sammendrag
Forfattere
Göran Ståhl Svetlana Saarela Sebastian Schnell Sören Holm Johannes Breidenbach Sean P. Healey Paul L. Patterson Steen Magnussen Erik Næsset Ronald E. McRoberts Timothy G. GregoireSammendrag
This paper focuses on the use of models for increasing the precision of estimators in large-area forest surveys. It is motivated by the increasing availability of remotely sensed data, which facilitates the development of models predicting the variables of interest in forest surveys. We present, review and compare three different estimation frameworks where models play a core role: model-assisted, model-based, and hybrid estimation. The first two are well known, whereas the third has only recently been introduced in forest surveys. Hybrid inference mixes design-based and model-based inference, since it relies on a probability sample of auxiliary data and a model predicting the target variable from the auxiliary data..We review studies on large-area forest surveys based on model-assisted, model-based, and hybrid estimation, and discuss advantages and disadvantages of the approaches. We conclude that no general recommendations can be made about whether model-assisted, model-based, or hybrid estimation should be preferred. The choice depends on the objective of the survey and the possibilities to acquire appropriate field and remotely sensed data. We also conclude that modelling approaches can only be successfully applied for estimating target variables such as growing stock volume or biomass, which are adequately related to commonly available remotely sensed data, and thus purely field based surveys remain important for several important forest parameters.
Forfattere
Ari HietalaSammendrag
Det er ikke registrert sammendrag
Sammendrag
Food production contributes considerably to global greenhouse gas (GHG) emissions. Animal products – particularly meat from ruminants – generally have higher GHG emissions than plant products. Over the last few decades the global per capita consumption of animal products has increased. This has a negative impact on climate change, land and water availability, and human health. We are faced with the two-fold challenge of reducing GHG emissions while still producing enough food for our growing population. Part of the solution could be for consumers to change towards a more sustainable diet. In this paper we take Norway as a case study for estimating optimal taxes and subsidies on different food items which can change consumption patterns in order to reduce the GHG emissions derived from the average Norwegian diet. In the estimate we ensure that the average calorie intake with the new diet remains the same as with the current diet, and factor in other health considerations. Our findings suggest that limited but useful emission reduction targets can be set with only a few changes in diets. The methodology presented in this paper may be used to estimate optimal climate taxes and subsidies under different emission, quantities, taxes, subsidies, and health constraints.
Forfattere
Bruce Talbot Marek Marian Pierzchala Jan Bjerketvedt Dag FjeldSammendrag
Det er ikke registrert sammendrag