Blar i Divisjon for skog og utmark på tittel
Viser treff 335-354 av 520
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Parasitoids indicate major climate-induced shifts in arctic communities
(Peer reviewed; Journal article, 2020-09-11)Climatic impacts are especially pronounced in the Arctic, which as a region is warming twice as fast as the rest of the globe. Here, we investigate how mean climatic conditions and rates of climatic change impact parasitoid ... -
Patterns and roles of lignan and terpenoid accumulation in the reaction zone compartmentalizing pathogen-infected heartwood of Norway spruce
(Peer reviewed; Journal article, 2022-02-10)Tree defense against xylem pathogens involves both constitutive and induced phenylpropanoids and terpenoids. The induced defenses include compartmentalization of compromised wood with a reaction zone (RZ) characterized by ... -
Patterns of Carbon Sequestration in a Young Forest Ecosystem after Clear-Cutting
(Peer reviewed; Journal article, 2020-01-21)A large area of Estonian hemiboreal forest is recovering from clear-cut harvesting and changing carbon (C) balance of the stands. However, there is a lack of information about C- source/sink relationships during recovery ... -
Påvisning av brunbjørn i den nordlige delen av Pasvikdalen i 2016 ved bruk av hårfeller og DNA analyse
(NIBIO Rapport;2(160) 2016, Research report, 2017-01-05)Brunbjørn bestanden I Pasvikdalen I Sør Varanger I Finnmark har vært overvåket med feltinnsamling av ekskrementer og hår til DNA analyse siden 2005. I 2007, 2011 og 1015 ble hårfeller systematisk plassert i det trilaterale ... -
Performance and Phenotypic Stability of Norway Spruce Provenances, Families, and Clones Growing under Diverse Climatic Conditions in Four Nordic Countries
(Peer reviewed; Journal article, 2021-02-17)Genetic variation and phenotypic stability in Norway spruce were studied based on provenances, families, and clones planted in trials at 12 sites in four Nordic countries. The families were generated in a factorial cross ... -
Performance in early tests, short-term trials and field trials of selected families of Norway spruce from Svenneby Seed Orchard
(NIBIO-rapport;8(87) 2022, Research report, 2022-05)Norway spruce parents selected from results in progeny trials for testing Svenneby Seed Orchard clones were crossed in a factorial crossing design, and full-sib families were planted in short-term and field trials in ... -
Plot size matters: Toward comparable species richness estimates across plot-based inventories
(Peer reviewed; Journal article, 2022-06-12)To understand the state and trends in biodiversity beyond the scope of monitoring programs, biodiversity indicators must be comparable across inventories. Species richness (SR) is one of the most widely used biodiversity ... -
Postharvest needle retention in Norway spruce Christmas trees
(Peer reviewed; Journal article, 2020-07-22)Norway spruce (Picea abies) is a widely used Christmas tree species in the Nordic countries. Postharvest needle retention is an important characteristic for Christmas trees and compared to many fir (Abies) species, Norway ... -
Pothole detection in the woods: a deep learning approach for forest road surface monitoring with dashcams
(Peer reviewed; Journal article, 2023-12-18)Sustainable forest management systems require operational measures to preserve the functional design of forest roads. Frequent road data collection and analysis are essential to support target-oriented and efficient ... -
Predicting Aggregate Degradation in Forest Roads in Northwest Oregon
(Peer reviewed; Journal article, 2020-07-03)In the Pacific Northwest, forest roads have the potential to cause significant environmental degradation, especially to water resources due to increased sediment production. The goal of this research is to improve the ... -
Predicting delay factors when chipping wood at forest roadside landings
(Journal article; Peer reviewed, 2018-05-15)Chipping of bulky biomass assortments at roadside landings is a common and costly step in the biomass-to-energy supply chain. This operation normally involves one chipping unit and one or several transport trucks working ... -
Predicting field N2O emissions from crop residues based on their biochemical composition: A meta-analytical approach
(Peer reviewed; Journal article, 2021-12-27)Crop residue incorporation is a common practice to increase or restore organic matter stocks in agricultural soils. However, this practice often increases emissions of the powerful greenhouse gas nitrous oxide (N2O). ... -
Prediction and model-assisted estimation of diameter distributions using Norwegian national forest inventory and airborne laser scanning data
(Peer reviewed; Journal article, 2021-04-07)Diameter at breast height (DBH) distributions offer valuable information for operational and strategic forest management decisions. We predicted DBH distributions using Norwegian national forest inventory and airborne laser ... -
Prediction of butt rot volume in Norway spruce forest stands using harvester, remotely sensed and environmental data
(Peer reviewed; Journal article, 2021-12-25)Butt rot (BR) damage of a tree results from a decay caused by a pathogenic fungus. BR damages associated with Norway spruce (Picea abies [L.] Karst.) account for considerable economic losses in timber production across the ... -
Prediction of forest canopy fuel parameters in managed boreal forests using multispectral and unispectral airborne laser scanning data and aerial images
(Peer reviewed; Journal article, 2020-09-08)This study evaluated the suitability of different airborne laser scanning (ALS) datasets for the prediction of forest canopy fuel parameters in managed boreal forests in Finland. The ALS data alternatives were leaf-off and ... -
Prosjektet «Råte i granskog – utbredelse og konsekvenser for valg av omløpstid». Sluttrapport
(NIBIO Rapport; 2(40) 2016, Research report, 2016)Denne rapporten sammenstiller hovedresultater fra prosjektet «Råte i granskog – utbredelse og konsekvenser for valg av omløpstid». Det er gjennom prosjektet utviklet en prediksjonsmodell for råte i enkelttrær med utgangspunkt ... -
Quality variation in comminuted forest fuels delivered during the winter in north Sweden
(Peer reviewed; Journal article, 2020-10-17)Swedish legislation stipulates the precision required for estimates of parameters used to determine the value of various forest fuels. The net energy value of fuel, as it is received, is often used to set the trade price. ... -
Quantifying regional surface energy responses to forest structural change in Nordic Fennoscandia
(Peer reviewed; Journal article, 2020-07-16)In a climate model, surface energy and water fluxes of the vegetated ecosystem largely depend on important structural attributes like leaf area index and canopy height. For forests, management can greatly alter these ... -
Radiative forcing bias of simulated surface albedo modifications linked to forest cover changes at northern latitudes
(Journal article; Peer reviewed, 2015-04-15) -
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 ...