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.
2006
Abstract
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Authors
Gudbrand Lien Ola Flaten Audun Korsæth K.D. Schumann J.W. Richardson Ragnar Eltun J. Brian HardakerAbstract
Målet med denne studien var å jamføre risikoen for økologiske, integrerte og convensjonelle dyrkingssystem. Forsøksdata frå eit dyrkingssystem (1991-1999) på Austlandet vart brukte saman med budsjettal frå gardsbruk. Empirisk fordeling av nettoinntekt for ulike dyrkingssystem vart estimert ved hjelp av ein simuleringsmodell. Resultata syner at det økologiske systemet hadde størst variasjon i nettoinntekt, men med gjeldane tilskotsordningar og meirprisar for økologiske varer vert dette det mest økonomiske alternativet.
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No abstract has been registered
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No abstract has been registered
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No abstract has been registered
Authors
Mikael Frisk Maud Göthe-Lundgren Kurt Jörnsten Mikael Rönnqvist Mikael RönnqvistAbstract
Transportation planning is an important part of the wood flow chain in forestry. There are often several forest companies operating in the same region and co-ordination between two or more companies is rare. However, there is an increasing interest in collaborative planning as the potential savings are large, often in the range 5-15%. A key question is how savings should be distributed among the participants. In this paper we investigate a number of possibilities based on economic models including Shapley value, the nucleolus, separable and non-separable costs, shadow prices and volume weights. We also propose a new allocation method based on finding as equal relative profits as possible among the participants. A case study including eight forest companies is described and analyzed.
Authors
Mikael Frisk Kurt Jörnsten Maud Göthe-Lundgren Mikael Rönnqvist Mikael RönnqvistAbstract
Transportation planning is an important part of the wood flow chain in forestry. There are often several forest companies operating in the same region and co-ordination between two or more companies is rare. However, there is an increasing interest in collaborative planning as the potential savings are large, often in the range 5-15%. A key question is how savings should be distributed among the participants. In this paper we investigate a number of possibilities based on economic models including Shapley value, the nucleolus, separable and non-separable costs, shadow prices and volume weights. We also propose a new allocation method based on finding as equal relative profits as possible among the participants. A case study including eight forest companies is described and analyzed.
Academic – Cost allocation in forestry operations
Mikael Rönnqvist, Mikael Frisk, Kurt Jörnsten, ...
Authors
Mikael Rönnqvist Mikael Frisk Kurt Jörnsten Maud Göthe-Lundgren Mikael RönnqvistAbstract
Transportation planning is an important part of the wood flow chain in forestry. There are often several forest companies operating in the same region and co-ordination between two or more companies is rare. However, there is an increasing interest in collaborative planning as the potential savings are large, often in the range 5-15%. A key question is how savings should be distributed among the participants. In this paper we investigate a number of possibilities based on economic models including Shapley value, the nucleolus, separable and non-separable costs, shadow prices and volume weights. We also propose a new allocation method based on finding as equal relative profits as possible among the participants. A case study including eight forest companies is described and analyzed.
Authors
Anne-Kristin Løes Johanne E. SchjøthAbstract
The manuscript is a part of a report on Eruopean research in organic food and farming, published by the ERA net CORE Organic in 2006. 11 European countries which have had significant research programmes in organic food and farming have contributed to the report. For each country, the history and organisiation of this type of research is described, as well as details about completed and on-going research programmes and their funding, research facilities, research strategies and scientific education within organic food and farming.
Authors
Ken Olaf StoraunetAbstract
In recent years attention has focused on the consequences of modern forestry on biological diversity. Additionally, past forest management has reduced the structural heterogeneity of forest landscapes, increasing the interest in assessing forest naturalness. General forest history of Norway shows that single-tree and selective logging was the main silvicultural method up to the mid-twentieth century when clearcutting practice took over as the dominating logging regime. Thus, regenerating forests on former clearcut areas have barely reached the stages of maturity, implying that mature forests of today for the most part are remnants from the period of selective logging. This thesis has been part of a comprehensive research project where one of the general objectives was to gain knowledge on the distribution and abundance of rare and threatened species in Norwegian forests....