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.
2016
Sammendrag
Bangladesh often suffers from droughts and floods that cause substantial harm to households and communities. The frequency of such events is expected to increase with climate change. Assessing the vulnerability to climate change is a promising evaluation tool that can assist in identifying and improving adaptation strategies at various geographical scales. In this paper, we examine the vulnerability status of two regions in Bangladesh, one in the north, which is frequently impacted by severe droughts, and one in the south, which is exposed to regular flooding, high water, and salinity. We evaluate the exposure, sensitivity and adaptive capacity of each region using demographic, agro-economic, infrastructural, and biophysical indicators. We consider information obtained in a literature review, interviews with local experts, household surveys, and field visits in the study areas. We use principal components analysis to assess vulnerability to climate change between and within the north and south regions. The flood-prone, saline region in the south appears less vulnerable to climate change the northern drought prone areas, although further validation is needed.
Forfattere
Rolf Nestby Ilian Badjakov I. Dincheva V. Kindakova R. BatchvarovaSammendrag
In this study we present Our initial results on the assessment of Genetic diversity among Wild Bulgarian berry accessions (Rubus idaeus L. Fragaria vesca L. Vaccinium vitis-Idaea L. Vaccinium myrtillus L.)using Random Amplified Polymophic DNA (RAPDs) markers. Leaves and fruits were collected from two Natural habitats - the Balkan Mountain and the Mountain of Orpheus - Rhodope Mountain. All asseccions were screened for their polymorphism using five RAPD primers. The phylogenetic distance calculated from RAPD data ranged from0.29 to 0.82 thus indicating that a high Level of gene diversity is present in the selected genotypes. In order to characterize further the structure and grouping of berry accessions a dendrogram deriving from UPGMA cluster analysis based on the basic similarity (GS) coefficient Matrix was designed. RADP analysis provided to be efficient for discrimination of accessions within the same species With similar morphological characters.
Forfattere
Leif Sundheim Åshild Ergon Christer Magnusson Jan Netland Egil Prestløkken Arild Sletten May Sæthre Elin Thingnæs Lid Tron Øystein Gifstad Micael Wendell Guro Brodal Halvor Solheim Anne Marte Tronsmo Bjørn Økland Trond RafossSammendrag
Det er ikke registrert sammendrag
Sammendrag
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Sammendrag
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Forfattere
John Christian Gaby Jeremy Frank Espen Govasmark Live Heldal Hagen Lisa Paruch Linn Solli Phillip Pope Svein Jarle HornSammendrag
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Forfattere
John Christian Gaby Jeremy Frank Espen Govasmark Live Heldal Hagen Lisa Paruch Linn Solli Phillip Pope Svein Jarle HornSammendrag
Det er ikke registrert sammendrag
Sammendrag
The re-measurement of permanent forest inventories offers a unique opportunity to assess the occurrence and impact of forest disturbances. The present study aims at exploring the main forest damages in Norway based on the extensive data of several consecutive national forest inventories during the period 1995–2014. Five of the most common disturbance agents in Norway are selected for analysis: wind, snow, browsing, fungus and insect damage. The analyses focuses on the frequency and variation along time, the average damage at stand level and the spatial patterns of damage occurrence, resulting in a characterization of the damage produced by disturbances in Norway. The highest damage occurrences by disturbance agent are due to browsing, snow and wind. Snow presents a decreasing temporally trend in damage frequency in the studied period. By forest type, mature and intermediate birch forest are found to be more affected by snow damage, whereas mature spruce forest is by wind damage. The results from this study provide support to the hypothesis that damages by autumnal moth (Epirrita autumnata) on birch are more common in mature stands. No major attacks from bark beetle (Ips typographus) are found, probably related to the lack of major storm damages in the period. Forest types susceptibility to fungus has no apparent variation over time except in the last years, as increased occurrence is observed on mature spruce stands probably correlated with warmer than average periods. Browsing damage causes the most severe losses, as expected, in young stands, and is allocated mainly on the most productive forests. Although some of the disturbances present locally moderate effects, the results show no major disturbances threatening Norwegian forests in the studied period. Finally, the Norwegian national forest inventory demonstrates its reliability as a basis to understand the occurrence and effects of major natural disturbances.
Forfattere
Hugo de Boer Maria Gulbrandsen Asmyhr Hanne Hegre Grundt Kjersti Sjøtun Hans K. Stenøien Jan Ove Gjershaug Kjetil Hindar Lawrence R. Kirkendall Nina Elisabeth Nagy Anders Nielsen Eli Knispel Rueness Odd Terje Sandlund Gaute VelleSammendrag
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Forfattere
Anders Nielsen Merethe Aasmo Finne Maria Gulbrandsen Asmyhr Jan Ove Gjershaug Lawrence R. Kirkendall Vigdis Vandvik Gaute Velle Hugo de Boer Kjetil Hindar Nina Elisabeth Nagy Eli Knispel Rueness Odd Terje Sandlund Kjersti Sjøtun Hans K. StenøienSammendrag
Det er ikke registrert sammendrag