Browsing Doctoral theses (MINA) by Issue Date
Now showing items 61-78 of 78
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The role of biotic and abiotic factors on treeline ecotone dynamics : studies using field observations and remote sensing
(PhD Thesis;2022:35, Doctoral thesis, 2022)With global warming, the forest extent is expected to change, and the transition zone between the upper forest boundary and treeless alpine landscape (i.e., the treeline ecotone) is expected to migrate to higher elevations. ... -
Emerging challenges in the energy transition in Northern Europe : potentials and impacts
(PhD Thesis;2022:25, Doctoral thesis, 2022)The European energy transition has passed the initial stage, and both the speed and scope of decarbonisation are growing rapidly. Decarbonisation progress has been observed in the power sector, but stronger efforts are ... -
Fine-spatial radiation measurements for heterogeneous boreal–alpine and sub-alpine vegetation
(PhD Thesis;2022:37, Doctoral thesis, 2022)Net radiation constitutes the most important component shaping the climate in the lower atmosphere and the land surface below. The flux determines the amount of energy available for exchange as sensible and latent heat, ... -
The importance of invertebrates on fungi in dead wood
(PhD Thesis;2022:43, Doctoral thesis, 2022)Dead wood is an important energy source in boreal forests and it hosts a high biodiversity dominated by fungi and invertebrates. Wood decay fungi are the initial decomposers of dead wood and invertebrates interact with ... -
Tree species effects on litter decomposition and soil carbon
(PhD thesis;2022:18, Doctoral thesis, 2022)Boreal forests soils play an important role in mitigating climate change as they are the largest terrestrial carbon pool. The accumulation of soil carbon is regulated by the balance of carbon and nitrogen input from plant ... -
Strategies for increasing sustainability of wheat (Triticum aestivum L.) and faba bean (Vicia faba L.) production : effect of composts, rotation and biofertilizers
(PhD Thesis;2023:21, Doctoral thesis, 2023)An increasing human population poses extraordinary challenges on agricultural production. Feeding an estimated 10 billion people by 2050 requires more food with good nutritious value. Synthetic fertilizers and herbicides ... -
Subsoil nitrogen utilization and N₂O formation in Norwegian grass-clover forage systems
(PhD thesis;2023:7, Doctoral thesis, 2023)Value creation in Norwegian agriculture is primarily based on milk and meat production, which depend in part on perennial grassland-based forage production. Roughly 60% of the fully cultivated land in Norway is used for ... -
The European energy transition : economic impacts on Nordic stakeholders in the energy system
(PhD thesis;2023:27, Doctoral thesis, 2023)This thesis assesses the economic impacts that the European energy transition towards net-zero carbon emissions has on Nordic power system stakeholders. The impacts of climate policies, the role of power system flexibility, ... -
Soundscape analysis for biodiversity monitoring in tropical rainforest ecosystems
(PhD Thesis;2023:71, Doctoral thesis, 2023)Tropical rainforests harbour up to 66% of the world’s terrestrial biodiversity but have been reduced in extent by up to 60% due to persistent deforestation and forest degradation, resulting in the population decline or ... -
Impact of low dose rate ionising radiation : studies in mice evaluating immediate and long-term molecular responses and transgenerational genomic instability
(PhD Thesis;2023:40, Doctoral thesis, 2023)Mye av det vi vet om risiko for helseeffekter etter å ha blitt usatt for ioniserende stråling er kunnskap lært fra de som overlevde atombombene i Hiroshima og Nagasaki. Imidlertid er denne kunnskapen basert på effekter ... -
Landscape-scale determinants and dynamics of large carnivore density
(PhD Thesis;2023:36, Doctoral thesis, 2023)1. Wildlife populations live in increasingly human-altered landscapes. Either because of their intrinsic values or due to instrumental values to humans, wildlife populations are monitored to inform about their current ... -
Soil carbon storage in the forest-tundra ecotone : insights from field- and remotely sensed data
(PhD Thesis;2023:84, Doctoral thesis, 2023)Due to climate warming, forests are moving to higher elevations and latitudes at the expense of treeless tundra. Recent studies suggest that these vegetation shifts promote soil organic carbon (SOC) losses that exceed ... -
Effects of selective logging on Amazonian wildlife
(PhD thesis;2023:6, Doctoral thesis, 2023)Selective logging of tropical forests is rapidly expanding, making it inevitable that future tropical landscapes will be dominated by production forests. Any biodiversity conservation strategy must consider the potential ... -
Mitigation of greenhouse gas emissions by pH management of agricultural soils in Norway
(PhD thesis;2023:2, Doctoral thesis, 2023)Liming has been and still is used to neutralize soil acidity, improve soil nutrient availability, increase yields, and recently it has been recognized as a possible nitrous oxide (N2O) mitigation tool for arable soils. ... -
Activity patterns in tropical forest mammals : a pantropical assessment using camera-trap data
(PhD thesis;2024:8, Doctoral thesis, 2024) -
Modelling infiltration dynamics in the frozen unsaturated zone : implications for flood hazard
(PhD thesis;2024:25, Doctoral thesis, 2024)This PhD research investigated numerical modelling of frozen soil, implications of soil freezing on infiltration, snowmelt flooding in an agricultural landscape, and literature on soil freezing physics. The main goal was ... -
Climate change impacts on natural forest disturbances : bark beetle damage potential and management adaptations
(PhD Thesis;2024:27, Doctoral thesis, 2024)Across the world, forests offer essential resources for humans and many other species, but they are now threatened by increasing wind damages, wildfires, droughts, and insect outbreaks due to climate change. This thesis ... -
Drivers of bat activity and habitat use in boreal forest
(PhD thesis;2024:29, Doctoral thesis, 2024)Bat species in Fennoscandia make up approximately 20% of the terrestrial mammal wildlife and are all reliant on forest habitats to some extent throughout their annual cycle. However, there is a lack of knowledge on ecological ...