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.
2013
Authors
Maria Björkman Ishita Ahuja Annette Folkedal Schjøll Nicole Van Dam Atle M. Bones Richard MeadowAbstract
No abstract has been registered
Authors
Liv Østrem Margarita Novoa-Garrido Arild LarsenAbstract
No abstract has been registered
Authors
Ingrid Ertshus Mathisen Anna Mikheeva Olga V. Tutubalina Sigrun Aune Annika HofgaardAbstract
No abstract has been registered
Authors
Eric N. Hansen Rajat Panwar Erlend NybakkAbstract
No abstract has been registered
Abstract
Fine roots contribute to net primary production in forests, but knowledge of fine root longevity and turnover is still incomplete and limited to few tree species. In this study, we used minirhizotrons to compare fine root biomass, longevity and turnover of Pinus sylvestris L., Betula pendula Roth and Picea abies (L) Karst. in southern Sweden. Minirhizotron tubes were installed in 2006 and root images were taken in 2007–2010. Soil cores were used to estimate fine root biomass. Soil samples were taken from the humus layer and from 0 to 10 cm, 10 to 20 cm and 20 to 30 cm depth in the mineral soil. Only images from the humus layer and the upper 10 cm of mineral soil were included in root analysis. Spruce has a higher aboveground production than pine and birch in southern Sweden and this was reflected in larger fine root biomass as well as higher fine root biomass production. The annual tree fine root biomass production (humus and 0–30 cm in mineral soil) was 73, 78 and 284 g m−2 in pine, birch and spruce stands, respectively. Thicker fine roots tended to live longer. The majority of the fine roots were thinner than 0.5 mm in diameter, with a turnover rate (KM) of 0.4 year−1. When comparing all fine roots, i.e. all roots 0–2 mm, pine had the highest longevity, 1120 days, compared with 900 days for spruce and 922 days for birch (KM).
Authors
Eric N. Hansen Erlend Nybakk Rajat PanwarAbstract
The recent economic downturn severely affected the US forest sector from a macro-economic perspective but little is known about changes in firm-level performance. In this study we investigate the changes in financial, social and environmental performance of forest sector firms during a period approximately corresponding to the downturn. We also assess industry dynamism and industry’s view about social and environmental responsibility as a competitive tool. We conducted a national survey of wood, furniture and paper companies. Approximately sixty percent of our respondents reported a decline in financial performance during the downturn. With respect to social and environmental performance, customer oriented actions show mixed trends, employee matters remained somewhat unaltered, community engagement significantly decreased, and engagement in environmental activities significantly increased. Respondents view their operating business environment as highly dynamic and difficult and they do not view engagement in social and environmental responsibility activities leading to either financial or non-financial benefits.
Abstract
No abstract has been registered
Authors
Sigrun Hjalmarsdottir KværnøAbstract
No abstract has been registered
Authors
Åshild Kristine Andreassen Per Brandtzæg Merethe Aasmo Finne Askild Lorentz Holck Anne Marthe Jevnaker Olavi Junttila Heidi Sjursen Konestabo Richard Meadow Arne Mikalsen Kaare Magne Nielsen Monica Sanden Ville Erling Sipinen Hilde-Gunn Opsahl Sorteberg Rose VikseAbstract
No abstract has been registered
Authors
Pedro A. Alviola Rodolfo M. Jr. Nayga Michael ThomsenAbstract
No abstract has been registered