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.
2025
Sammendrag
Nytt regelverk setter krav til at økologiske veksthusgrønnsaker skal dyrkes i jord og ikke i avgrenset medium som er vanlig i dag. Dette skaper utfordringer for produsentene som må investere både i bygninger og kompetanse for å tilfredsstille de nye kravene. Denne rapporten tar for seg de økonomiske konsekvensene av det nye regelverket. Viser til eget avsnitt med sammendrag i rapporten.
Sammendrag
Effektivisering og intensivering av jordbruket har vært nødvendig for å nå målet om økt matproduksjon, fø en voksende befolkning og avverge sult, men fikk samtidig negative effekter for naturmangfoldet. Mange av artene som i dag finnes på rødlista er imidlertid fortsatt til stede i landskapet. Det innebærer et potensial for en positiv utvikling for disse artene, om forholdene legges til rette for det.
Forfattere
Chala Adugna Kufa Afework Bekele Anagaw Atickem Desalegn Chala Diress Tsegaye Torbjørn Ergon Nils Christian Stenseth Dietmar ZinnerSammendrag
Det er ikke registrert sammendrag
Sammendrag
Urban green structures (UGS) play important roles in enhancing urban ecosystems by providing benefits such as mitigating the urban heat island effect, improving air quality, supporting biodiversity, and aiding in stormwater management. Accurately mapping UGS is important for sustainable urban planning and management. Traditional methods of mapping such as manual mapping, aerial photography interpretation and pixel-based classification have limitations in terms of coverage, accuracy, and efficiency. Object-based image analysis (OBIA) has gained prominence due to its ability to incorporate both spectral and spatial information making it particularly effective for classification of high-resolution satellite data. This paper reviews the application of OBIA on satellite images for UGS mapping, focusing on various data sources, popular segmentation methods, and classification techniques, highlighting their respective advantages and limitations. Key segmentation methodologies discussed include multi-resolution segmentation and watershed segmentation. For classification, the review covers machine learning techniques such as random forests, support vector machines, and convolutional neural networks, among others. Several case studies highlight the successful implementation of OBIA in diverse urban environments by demonstrating improvements in classification accuracy and detail. The review also addresses the challenges associated with OBIA, such as dealing with heterogenous urban landscapes, data sources and with OBIA methods itself. Future directions for UGS mapping include the integration of deep learning algorithms, advancements in satellite data technologies, and the development of standardized classification frameworks. By providing a detailed analysis of the current state-of-the-art in object-based UGS mapping, this review aims to guide future research and practical applications in UGS management.
Forfattere
Céline ReboursSammendrag
Det er ikke registrert sammendrag
Sammendrag
Det er ikke registrert sammendrag
Sammendrag
Det er ikke registrert sammendrag
Forfattere
Anna Birgitte MilfordSammendrag
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Forfattere
Nina TrandemSammendrag
Det er ikke registrert sammendrag
Forfattere
Ivar Pettersen Siri Voll DombuSammendrag
The horticulture sector of Norway is small in terms of number of enterprises and farmed acreage, but important for value created, healthy food consumption, and soil maintenance. In spite of its importance, few agricultural policy instruments work to support growth. Horticulture is more exposed to international competition, more closely integrated in supply chains dominated by distributive corporations and less by strong farmers’ cooperatives and has a low share of economic support compared to other agricultural branches. This has driven the sector towards close, voluntary horizontal cooperation and innovation. This report sees the same pathway as the most relevant recipe for future growth, potentially supported by a more effective public policy for healthy nutrition meaning stimulated consumption of vegetables and fruit. A more active, interventionistic competition policy may also cause significant change in horticulture value chains.