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.
2018
Sammendrag
Det er ikke registrert sammendrag
Sammendrag
Removal of logging residues causes significant nutrient losses from the harvesting site. Furthermore,collection of residues into piles could lead to small-scale differences in establishment conditions for seedlings. We studied the effects of stem-only (SOH) and aboveground whole-tree harvesting (WTH) on Norway spruce (Picea abies) seedling growth and pine weevil (Hylobius abietis) damage at two sites (SE and W Norway). We also compared two planting environments within the WTH plots (WTH-0: areas with no residues, WTH-1: areas where residue piles had been placed and removed before planting). In practice, one-third of the residues were left on site after WTH. After three growing seasons there were no differences for height or diameter increment between SOH and WTH (WTH-1 and WTH-0 combined) treatments. However, relative diameter increment was largest for WTH-1 seedlings and lowest for WTH-0 seedlings. Few seedlings sustained pine weevil attacks at the W Norway site, with no differences among treatments. At the SE Norway site, the percent of seedlings damaged by pine weevils and average debarked area were significantly higher after WTH (82% and 3.3 cm2) compared to SOH (62% and 1.7 cm2). We conclude that WTH may lead to spatial differences in establishment conditions.
Forfattere
Erling Meisingset Leif Egil Loe Øystein Brekkum Richard Bischof Inger Maren Rivrud Unni Støbet Lande Barbara Zimmermann Vebjørn Veiberg Atle MysterudSammendrag
submittedVersion
Sammendrag
Det er ikke registrert sammendrag
Forfattere
Nicholas Clarke Silje Skår O. Janne Kjønaas Kjersti Holt Hanssen Tonje Økland Jørn-Frode Nordbakken Toril Drabløs Eldhuset Holger LangeSammendrag
Short-term (three to four years) effects of forest harvesting on soil solution chemistry were investigated at two Norway spruce sites in southern Norway, differing in precipitation amount and topography. Experimental plots were either harvested conventionally (stem-only harvesting, SOH) or whole trees, including crowns, twigs and branches were removed (whole-tree harvesting, WTH), leaving residue piles on the ground for some months before removal. The WTH treatment had two sub-treatments: WTH-pile where there had been piles and WTH-removal, from where residues had been removed to make piles. Increased soil solution concentrations of NO3–N, total N, Ca, Mg and K at 30 cm depth, shown by peaks in concentrations in the years after harvesting, were found at the drier, less steep site in eastern Norway after SOH and WTH-pile, but less so after WTH-removal. At the wetter, steeper site in western Norway, peaks were often observed also at WTH-removal plots, which might reflect within-site differences in water pathways due largely to site topography.
2017
Sammendrag
Milde vintre og mye nedbør gjør jorda bløt, noe som også gjør den sårbar mot tunge skogsmaskiner. Derfor eksperimenterer forskere med nye beltegående maskiner i Norge.
Sammendrag
Hvert fjerde strømbrudd skyldes trær som har falt ned på strømlinjene. Ved å tynne ut ung skog nær strømlinjene, kan faren for strømbrudd reduseres.
Intervju – Mer informasjon fra nye digitale kart | Norsk Skogbruk
Lars Sandved Dalen, Johannes Rahlf
Sammendrag
En kombinasjon av registreringer på bakken og en ny type tredimensjonale flybilder, såkalt stereofotogrammetri, ligger bak det nye digitale
Sammendrag
Årringer fra brannskadde furutrær forteller om hvordan både klimaet og menneskene har påvirket skogbranner helt fra Svartedauden og frem til i dag.
Sammendrag
– Dersom du bruker riktig mengde på riktig type skog, vil gjødsling være både miljøvennlig og lønnsomt, sier skogforsker.