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.
2020
Forfattere
Bob Eric Helmuth van Oort Grete Kaare Hovelsrud Camilla Risvoll Christian Wilhelm Mohr Solveig JoreSammendrag
Det er ikke registrert sammendrag
Sammendrag
Fin ut hvordan miljøet kommer til å være i din kommune i 2100 år med pågående klimaendringer.
Sammendrag
Folk til fjells møter på flåtten på steder den ikke har vært før. Et varmere klima gir flåtten større områder å leve på, og i fremtiden vil den trolig spre seg til nesten hele landet.
Forfattere
Henrik Heräjärvi Pia Katila Mikko Kurttila Markus Lier Antti Mutanen Knut Øistad Johanna Routa Pekka Saranpää Anne Tolvanen Jari ViitanenRedaktører
Camilla WidmarkSammendrag
The forests in Nordic countries have been a source of food, products and welfare for both local communities and for the nations as long as there has been any settlement. More recently, the way the forest supports the climate has become more pronounced. However, humans now face major challenges due to climate change as well as societal and environmental challenges. Fundamental changes are needed to ensure future prosperity in the face of growing resource depletion, climate changes and environmental degradation. What has become clear is that fossil dependence must be overcome and be replaced with bio-based materials and innovations to support the more efficient use of resources — thus, creating a more bioeconomy-based society. This report describes the role of the forest in bioeconomy transformation and green innovation in the northern part of Europe — Finland, Norway and Sweden — and highlights the challenges facing forests in this emerging bioeconomy. These countries are also part of the Barents area, thus the northern part of Finland, Norway, Sweden and Russia. In summary, the report discusses several common features and lessons learned from these countries: • Forests are crucial for the development of sustainable bioeconomy in the Nordic countries in substituting fossil fuel-based materials and energy. Forest biomass has a large potential for developing new bio-based products. • Bioeconomy and circular economy transformation depend on both technical and social innovations together with societies adapting to a bio-based sustainable future, which emphasises the ecologic, economic, and social functions of forests. In policymaking and forest management, synergies need to be realised and trade-offs evaluated and addressed in forest management in general. • Bioeconomy transformation is driven by the development of forest value chains and innovations based on forest biomass, in which research and development go hand in hand with investments and policy regulations. • Consumers are a main driver of bioeconomy transformation replacing the demand of fossil-based materials with bio-based. • Choices, both in policy and forest management, have to be made to support the continuous provision of all forest ecosystem services. • The contributions of forest to bioeconomy are regional, national, as well as cross-country (e.g. Baltic, Barents or Nordic), and international (e.g. EU) and the forest’s contribution to bioeconomy has to be considered in relation to properties of the forest, sustainability, innovations, knowledge development, green investment structures as well as national policies.
Sammendrag
Skogen i Norge har et årlig netto opptak i underkant av 30 mill. tonn CO2. Størrelsen på opptaket påvirkes av forvaltningen av skogarealene, både gjennom endringer i totalarealet (avskoging og påskoging), og forvaltningen av de eksisterende skogarealene. I denne rapporten presenteres en første vurdering av syv klimatiltak som ikke tidligere er utredet, en kunnskapsoppdatering av noen tidligere utredede klimatiltak, og en framskrivning av mulige effekter på netto CO2-opptak av ulike nivå på implementerte tiltak. Rapporten er skrevet på bestilling fra Landbruksdirektoratet og Miljødirektoratet, og det er direktoratene som har gjort utvalget av tiltak....
Forfattere
O. Janne KjønaasSammendrag
Det er ikke registrert sammendrag
Forfattere
O. Janne KjønaasSammendrag
Det er ikke registrert sammendrag
Forfattere
Liz Veerman Karsten Kalbitz Per Gundersen O. Janne Kjønaas Filip Moldan Patrick Schleppi Emiel E. van Loon Jorien Schoorl Wim Wessel Albert TietemaSammendrag
Increased anthropogenic nitrogen (N) inputs can alter the N cycle and affect forest ecosystem functions. The impact of increased N deposition depends among others on the ultimate fate of N in plant and soil N pools. Short-term studies (3-18 months) have shown that the organic soil layer was the dominant sink for N. However, longer time scales are needed to investigate the long-term fate of N. Therefore, the soils of four experimental forest sites across Europe were re-sampled similar to 2 decades after labelling with(15)N. The sites covered a wide range of ambient N deposition varying from 13 to 58 kg N ha(-1)year(-1). To investigate the effects of different N loads on(15)N recovery, ambient N levels were experimentally increased or decreased. We hypothesized that: (1) the mineral soil would become the dominant(15)N sink after 2 decades, (2) long-term increased N deposition would lead to lower(15)N recovery levels in the soil and (3) variables related to C dynamics would have the largest impact on(15)N recovery in the soil. The results show that large amounts of the added(15)N remain in the soil after 2 decades and at 2 out of 4 sites the(15)N recovery levels are higher in the mineral soil than in the organic soil. The results show no clear responses of the isotopic signature to the changes in N deposition. Several environmental drivers are identified as controlling factors for long-term(15)N recovery. Most drivers that significantly contribute to(15)N recovery are strongly related to the soil organic matter (SOM) content. These findings are consistent with the idea that much of the added(15)N is immobilized in the SOM. In the organic soil layer, we identify C stock, thickness of the organic layer, N-status and mean annual temperature of the forest sites as most important controlling factors. In the mineral soil we identify C stock, C content, pH, moisture content, bulk density, temperature, precipitation and forest stand age as most important controlling factors. Overall, our results show that these temperate forests are capable of retaining long-term increased N inputs preferably when SOM availability is high and SOM turnover and N availability are low.
Sammendrag
Protected Areas (PAs) in Tanzania had been established originally for the goal of habitat, landscape and biodiversity conservation. However, human activities such as agricultural expansion and wood harvesting pose challenges to the conservation objectives. We monitored a decade of deforestation within 708 PAs and their unprotected buffer areas, analyzed deforestation by PA management regimes, and assessed connectivity among PAs. Data came from a Landsat based wall-to-wall forest to non-forest change map for the period 2002–2013, developed for the definition of Tanzania’s National Forest Reference Emissions Level (FREL). Deforestation data were extracted in a series of concentric bands that allow pairwise comparison and correlation analysis between the inside of PAs and the external buffer areas. Half of the PAs exhibit either no deforestation or significantly less deforestation than the unprotected buffer areas. A small proportion (10%; n = 71) are responsible for more than 90% of the total deforestation; but these few PAs represent more than 75% of the total area under protection. While about half of the PAs are connected to one or more other PAs, the remaining half, most of which are Forest Reserves, are isolated. Furthermore, deforestation inside isolated PAs is significantly correlated with deforestation in the unprotected buffer areas, suggesting pressure from land use outside PAs. Management regimes varied in reducing deforestation inside PA territories, but differences in protection status within a management regime are also large. Deforestation as percentages of land area and forested areas of PAs was largest for Forest Reserves and Game Controlled areas, while most National Parks, Nature Reserves and Forest Plantations generally retained large proportions of their forest cover. Areas of immediate management concern include the few PAs with a disproportionately large contribution to the total deforestation, and the sizeable number of PAs being isolated. Future protection should account for landscapes outside protected areas, engage local communities and establish new PAs or corridors such as village-managed forest areas.
Forfattere
Gunnhild SøgaardSammendrag
Det er ikke registrert sammendrag