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.
2025
Sammendrag
• In this book we summarize peer-reviewed scientific articles and research reports from Finland, Sweden, and Norway on continuous cover forestry (CCF), i.e. forestry without clearcutting • This book originates from growing interest in CCF among various stakeholders, and aims to promote discussion, further research, and inform decision-makers • The book targets those interested in boreal forests, forest management, and ecosystem services • In this chapter we review the background to the use of CCF and the reasons that led to its prohibition and subsequent resurgence in the Nordic countries
Forfattere
Mikolaj Lula Kjersti Holt Hanssen Martin Goude Hannu Hökkä Sauli Valkonen Andreas Brunner Pasi Rautio Charlotta Erefur Aksel GranhusSammendrag
• In the context of continuous cover forestry (CCF), natural regeneration is the preferred form of regeneration, but it is a long-lasting and complex process. Shelter density has a large effect on the regeneration process and results. • The selection system, particularly suited for shade-tolerant species like Norway spruce, relies on continuous regeneration and ingrowth into larger size classes.
Vitenskapelig kapittel – Growth and Yield
Simone Bianchi, Andreas Brunner, Kjersti Holt Hanssen, ...
Forfattere
Simone Bianchi Andreas Brunner Kjersti Holt Hanssen Hannu Hökkä Urban Nilsson Nils Fahlvik Jari HynynenSammendrag
• There is still a lack of knowledge on growth and yield (G&Y) in continuous cover forestry (CCF). Most published studies are on the selection system with Norway spruce. • Published comparisons of the selection system with rotation forestry (RF) show contrasting results. Generally, there seems to be a trend toward faster stand growth in RF. • However, there are many uncertainties due to several confounding factors, such as stand-density effects, site-quality classification, and/or growth models used. Most studies do not properly account for all these factors, making it difficult to generalise their results. • The optimal stand density trade off for the selection system between stand growth and recruitment should be better investigated. Preliminary results show this could strongly affect stand growth. • There is even less knowledge related to G&Y during conversion, a potential bottleneck for full implementation of CCF in the region.
Forfattere
Mekjell Meland Oddmund Frøynes Darius Kviklys Uros Gasic Uroš Gašić Tomislav Tosti Milica Fotiric AksicSammendrag
Det er ikke registrert sammendrag
Sammendrag
Det er ikke registrert sammendrag
Forfattere
Jutta KapferSammendrag
Det er ikke registrert sammendrag
Forfattere
Knut Espevig Özgün Candan Onarman Umu Marit Sekse Inger-Lise Akselsen Carl-Henrik Lensjø AlvinSammendrag
Det er ikke registrert sammendrag
Vitenskapelig kapittel – Biochar in forestry
Marjo Palviainen, Kjersti Holt Hanssen, Annamari Laurén
Sammendrag
Det er ikke registrert sammendrag
Forfattere
Eva BrodSammendrag
Det er ikke registrert sammendrag
Sammendrag
Post-Consumer Wood (PCW) is a valuable resource that could substitute virgin wood in many applications. However, its integration into the wood processing chain requires detailed information on composition, content of contaminants, size, and shape. Here, PCW collected over eight months from three sorting facilities in southeastern Norway was analyzed for suitability in recycling. Shredded PCW from 24 samples was manually sorted based on material origin, analyzed for heavy metal concentrations, and the particle geometry was measured with an automated laser scanner. Based on the results, 39–67 % of the mixed PCW was made up by clean wood particles suitable for recycling. Wood-based panels within the PCW were not only a source of contaminants (adhesives, coatings) but also decreased the length-to-width ratio of the resulting particles and chips. The median heavy metal concentrations did not exceed the limit values issued by the European Panel Federation. However, individual samples and the fine fraction (< 8 mm) exceeded these limit values. Manual pre-sorting before shredding into chips increased the share of clean wood particles, prevented elevated fiberboard contents and significantly reduced heavy metal concentrations.