Publications
NIBIOs employees contribute to several hundred scientific articles and research reports every year. You can browse or search in our collection which contains references and links to these publications as well as other research and dissemination activities. The collection is continously updated with new and historical material.
2010
Authors
Helge BerglannAbstract
This article considers the use of a hybrid instrument to regulate .sheries, comparing this instrument with quantity control and linear taxation in regards to economic yields and the risk of resource deple- tion. Hybrid instruments have shown to be central in studies with static models but have hardly ever been explored in the context of dy- namic .sheries. A numerical example concerned with a single-species demersal .shery where the stock estimate is uncertain indicates that a combination of price and quantity control in the form of a strictly convex tax on landings is clearly superior to quantity control. When cost uncertainty is involved, it can also prove more e¢ cient than the price instrument.
Authors
John Marshall BrydenAbstract
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Authors
John Marshall BrydenAbstract
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Authors
Tron Eid Andreas Brunner Gunnhild Søgaard Rasmus Astrup Stein Tomter Øyvind Løken Rune EriksenAbstract
Ambitious targets for renewable energy production in Norway draw attention to biomass potent-ials. The objective of this report is to review the state of the art regarding research on estimation methods, the availability and production of tree biomass resources for energy purposes in Norway in order to indentify knowledge gaps and thus facilitate appropriate focus, development and priorities regarding research for the coming years. The review focuses on biomass from pri-mary forest production with emphasis on Norwegian conditions, but also considers international research, especially from the other Nordic countries. Three main subject areas are considered: - biomass estimation - biomass resources and availability - biomass production. The first part of this report comprises an overview of existing biomass equations and associated inventory methods applied for estimating biomass in Norway. The overview includes a description of the Norwegian National Forest Inventory data as a basis for large-scale biomass assessments. The second part of the report comprises an overview of previous Norwegian assessments of biomass as an energy supplier as well as suggestions for improvements in such assessments. Improvement possibilities regarding the impacts of environmentally oriented restrictions, appropriate models for productivity and cost calculations regarding biomass harvesting systems, and implementation of biomass-related features in existing decisions support systems to facilitate analyses, where timber production and biomass production for energy purposes are equally important, are identified. The final part of the review focuses on silvi-cultural options aiming at optimizing the value of total biomass instead of the conventional approach to silviculture where the main focus is timber values.
Authors
Tore SkrøppaAbstract
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Authors
Miriam Windler Christian Guido Bruckner Bodo Phillip Peter, G. KrothAbstract
No abstract has been registered