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.
2013
Forfattere
Eldrid Lein MoltebergSammendrag
Det er ikke registrert sammendrag
Forfattere
Gunnar EnganSammendrag
Det er ikke registrert sammendrag
Forfattere
Liv Ostrem Margarita Novoa Garrido Arild LarsenSammendrag
Det er ikke registrert sammendrag
Forfattere
Liv Østrem Margarita Novoa-Garrido Arild LarsenSammendrag
Det er ikke registrert sammendrag
Forfattere
Ingrid Ertshus Mathisen Anna Mikheeva Olga V. Tutubalina Sigrun Aune Annika HofgaardSammendrag
Det er ikke registrert sammendrag
Forfattere
Eric N. Hansen Rajat Panwar Erlend NybakkSammendrag
Det er ikke registrert sammendrag
Sammendrag
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).
Forfattere
Eric N. Hansen Erlend Nybakk Rajat PanwarSammendrag
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.
Forfattere
A Fox M. Daly T. Nixon May Bente Brurberg Dag-Ragnar Blystad V. Harju A Skelton I.P AdamsSammendrag
Det er ikke registrert sammendrag
Forfattere
Inger Sundheim FløistadSammendrag
Det er ikke registrert sammendrag