Browsing Divisjon for skog og utmark by Issue Date
Now showing items 421-440 of 522
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Grøftede arealer i skog og myr i Norge. Statistikk fra Landsskogtakseringen 2016-2020
(NIBIO-rapport;8(90) 2022, Research report, 2022-07)I 2016-2020 gjennomførte Landsskogtakseringen detaljerte registreringer av grøftede arealer på alle prøveflater i skog og på all myrlendt snaumark, inkludert myrlendt snaumark over skoggrensa, med et samlet representativt ... -
Short-term effects of hardened wood ash and nitrogen fertilisation on understory vegetation in a Norway spruce forest in south-east Norway
(Peer reviewed; Journal article, 2022-07-26)In a fertiliser experiment in a Norway spruce forest in SE Norway, four treatments were applied in a block design with three replicates per treatment. Treatments included 3 t wood ash ha−1 (Ash), 150 kg nitrogen ha−1 (N), ... -
Hyperspectral imaging as a tool for profiling basidiomycete decay of Pinus sylvestris L.
(Peer reviewed; Journal article, 2022-08-02)Given the right climatic and environmental conditions, a range of microorganisms can deteriorate wood. Decay by basidiomycete fungi accounts for significant volumes of wood in service that need to be replaced. In this ... -
Examining approaches for modeling individual tree growth response to thinning in Norway spruce
(Peer reviewed; Journal article, 2022-08-02)Using periodic measurements from permanent plots in non-thinned and thinned Norway spruce (Picea abies (L.) H. Karst.) stands in Norway, individual-tree growth models were developed to predict annual diameter increment, ... -
Long-term spatiotemporal dynamics in a mountain birch (Betula pubescens ssp. czerepanovii) forest in south-east Norway
(Peer reviewed; Journal article, 2022-08-06)Mountain birch forest covers large areas in Eurasia, and their ecological resilience provides important ecosystem services to human societies. This study describes long-term stand dynamics based on permanent plots in the ... -
Emerging stability of forest productivity by mixing two species buffers temperature destabilizing effect
(Peer reviewed; Journal article, 2022-08-06)The increasing disturbances in monocultures around the world are testimony to their instability under global change. Many studies have claimed that temporal stability of productivity increases with species richness, although ... -
Timing and duration of drought modulate tree growth response in pure and mixed stands of Scots pine and Norway spruce
(Peer reviewed; Journal article, 2022-08-08)1. Climate change is increasing the severity and frequency of droughts around the globe, leading to tree mortality that reduces production and provision of other ecosystem services. Recent studies show that growth of mixed ... -
UAV-Based Hyperspectral Imagery for Detection of Root, Butt, and Stem Rot in Norway Spruce
(Peer reviewed; Journal article, 2022-08-08)Numerous species of pathogenic wood decay fungi, including members of the genera Heterobasidion and Armillaria, exist in forests in the northern hemisphere. Detection of these fungi through field surveys is often difficult ... -
Biological durability of pine wood
(Peer reviewed; Journal article, 2022-08-08)The genus Pinus represents more than a hundred different tree species, most of them forming stems that can be commercially utilised for both timber and wood pulp industry. Pines are native to most of the Northern Hemisphere, ... -
Bestandsestimering av hjort ved bruk av jegerrapporterte data - Presentasjon av en kjønns- og stadium-strukturert dynamisk populasjonsmodell
(NIBIO Rapport;, Research report, 2022-09)I denne rapporten viser vi at jegerrapporterte data gir mulighet for robust bestandsestimering av hjort basert på modellgenererte populasjonsforløp og derved mulighet for framskriving av bestandsutvikling som funksjon av ... -
Raman micro-spectroscopy of two types of acetylated Norway spruce wood at controlled relative humidity
(Peer reviewed; Journal article, 2022-09-06)Water is a key element for wood performance, as water molecules interact with the wood structure and affect important material characteristics such as mechanical properties and durability. Understanding wood-water interactions ... -
Simple Models Outperform More Complex Big-Leaf Models of Daily Transpiration in Forested Biomes
(Peer reviewed; Journal article, 2022-09-12)Transpiration makes up the bulk of total evaporation in forested environments yet remains challenging to predict at landscape-to-global scales. We harnessed independent estimates of daily transpiration derived from co-located ... -
Species selection in areas subjected to risk of root and butt rot: applying Precision forestry in Norway
(Peer reviewed; Journal article, 2022-09-13)Norway’s most common tree species, Picea abies (L.) Karst. (Norway spruce), is often infected with Heterobasidion parviporum Niemelä & Korhonen and Heterobasidion annosum (Fr.) Bref.. Because Pinus sylvestris L. (Scots ... -
Anvendelse av aldersfri bonitet for skog i Norge
(NIBIO Rapport 8(123) 2022;, Research report, 2022-10)Aldersfri bonitering er en metode for estimering av bonitet uten bruk av alder på skogen. Metoden er utviklet ved NIBIO i seinere år, og omtalt i tidligere publikasjoner. Vi går her videre i arbeidet med å kvalitetssikre ... -
Annual variation in breeding success in boreal forest grouse: Four decades of monitoring reveals bottom-up drivers to be more important than predation
(Peer reviewed; Journal article, 2022-10-09)Knowledge of the temporal variation in reproductive success and its key driving factors is crucial in predicting animal population persistence. Few studies have examined the effects of a range of explanatory factors operating ... -
ecochange: An R-package to derive ecosystem change indicators from freely available earth observation products
(Peer reviewed; Journal article, 2022-10-11)1. Spatial resources accessible for the derivation of biodiversity indicators of the class ecosystem structure are sparse and disparate, and their integration into computer algorithms for biodiversity monitoring remains ... -
Douglas Fir Growth Is Constrained by Drought: Delineating the Climatic Limits of Timber Species under Seasonally Dry Conditions
(Peer reviewed; Journal article, 2022-10-29)There is debate on which tree species can sustain forest ecosystem services in a drier and warmer future. In Europe, the use of non-native timber species, such as Douglas fir (Pseudotsuga menziesii [Mirb.] Franco), is ... -
Taksering av elgbeite, indre Oppland – Murudalen og Gausdal Vestfjell 2021-2022
(NIBIO Rapport 8(145) 2022;, Research report, 2022-11)NIBIO har taksert elgbeite over ca. 3000 daa i Murudalen og Gausdal Vestfjell 2021 og 2022. Bjørk, vier, einer og furu var det eneste buskbeitet av betydning. Furu utgjorde kun rundt 5% av beitetrærne, selv i furudominerte ... -
FASTVEG: Forsterkning av skogsbilveibæreevne, trinnvis enkel Groundeco-metode
(NIBIO Rapport 8(144) 2022;, Research report, 2022-11)Hovedmålet er å evaluere en ny, forenklet metode for Groundeco/EcoX-behandling av skogsbilveier for å øke bæreevnen i eksisterende masser. Delmålene er å undersøke effekten av behandlingen på bæreevne, kostnader knyttet ... -
Villeple på Jomfruland – en unik populasjon i nasjonal målestokk
(Journal article, 2022-11)Visste du at det finnes en viltvoksende art av eple i Norge? En av landets største populasjoner av villeple finnes på Jomfruland i Kragerø kommune. Villeple hybridiserer lett med hageeple, men på øya Jomfruland er det lite ...