The Forest Inventory and Monitoring Research Group (SkogRover) at Faculty of Environmental Sciences and Natural Resource Management (MINA), Norwegian University of Life Sciences (NMBU), develops methods to increase our knowledge of forests and forest-related resources.
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Wood quality
Restoration of cultural heritage sites and historic buildings often requires specialized timber with unique qualities. The most in-demand timber is used for bottom logs in construction, cladding, and roofing. The specific requirements relate to tree species, growth ring width, density, stem shape, knot properties, heartwood proportion, and dimensions.
Over the past 70–80 years, forest management practices focused on volume production, which has contributed to a decrease in the availability of trees with these special qualities. As a result, it can be challenging to identify where such trees can be found, given these specific criteria.
In addition to site-specific factors such as site quality, stand history, and density, crown shape can serve as a good indicator of internal qualities. In this project, we will utilize airborne laser data to describe crown characteristics, which will serve as input for models to map the presence of desirable qualities sought by cultural heritage authorities.
Inspection of sawmill site to assess the quality of materials cut from dense spruce in Valdres. People in the photo: Jens Martin Holme (Innlandet Higher Vocational College), Tore Rødbergshagen (Innlandet County Council), Knut Lundem Hougsrud and Marit Hougsrud (Nordre Hougsrud farm, Grån AS), Ole Martin Bollandsås (NMBU), Mikael Andersson (County Governor for Innlandet). Photo: Oda Amundsplass/Avisa Valdres
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