Blar i Faculty of Environmental Sciences and Natural Resource Management (MINA) på dokumenttype "Doctoral thesis"
Viser treff 81-100 av 135
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Life cycle assessment of mountain forest wood fuel supply chains : case studies from Norway and Italy
(PhD Thesis;2011:57, Doctoral thesis, 2011)Concerns about the fast growth in greenhouse gas emissions have encouraged several countries to increase their use of renewable energy. According to the EU’s Renewable Energy Directive (RED), 20% of all the energy production ... -
Liquid water absorption in wood cladding boards and log sections with and without surface treatment
(PhD Thesis;2010:6, Doctoral thesis, 2010)Water absorption in wood in service is of great importance both because of the resulting dimensional changes of the wood and because of the risk of deterioration by microorganisms at wood moisture content levels above 20 ... -
Local and systemic defence responses in trees against pathogenic fungi : differences revealed at the transcriptional level
(PhD Thesis;2011:43, Doctoral thesis, 2011)Forest trees dominate the earth surface and has special place in the economy and ecology of the planet. Due to the long life span of woody trees they are challenged by the abiotic and biotic factors. Over the long history ... -
Marine transport modeling of radionuclides using a dynamic speciation approach
(PhD Thesis;2019:42, Doctoral thesis, 2019)Anthropogenic radionuclides are introduced to the marine environment from many sources, such as atmospheric fallout, direct releases from nuclear installations (either via operational or accidental discharges) and indirectly ... -
Microplastic particles from roads and traffic : occurrence and concentrations in the environment
(PhD Thesis;2022:34, Doctoral thesis, 2022)The impact of roads and traffic on the environment have been studied for several decades, and negative impact on both the terrestrial and aquatic environment from pollutants have been demonstrated. Road pollution is typically ... -
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. ... -
Mobility of naturally occurring radionuclides and stable elements in alum shale : a case study of Gran, Highway 4, Norway
(PhD Thesis;2019:72, Doctoral thesis, 2019) -
Modeling hourly energy consumption in Norwegian buildings
(PhD Thesis;2016:91, Doctoral thesis, 2016)Growing world population, unabated use of fossil fuels, and economies aiming at continuous growth exhaust the planet’s natural resources and add to an augmented greenhouse effect. Besides limiting population growth in less ... -
Modeling integration of renewable energy sources into Inland Norway energy system
(PhD Thesis;2016:67, Doctoral thesis, 2020-11-24)Increasing attention to climate change causes and impacts, and the fact that the world owns limited energy resources, have tremendously increased the awareness of countries towards sustainable energy production and ... -
Modeling organic matter decomposition and nitrogen dynamics in agricultural soils : Environmental impacts of plant production systems
(PhD Thesis;2011:69, Doctoral thesis, 2011)Agricultural plant production has negative environmental impacts such as nitrate leaching and emissions of greenhouse gasses (N2O and CO2). Both phenomena are affected by the decomposition of soil organic matter and plant ... -
Modelling and estimating tree and forest resources of the Dry Afromontane forests in South-central Ethiopia using field and remotely sensed data
(PhD Thesis;2020:58, Doctoral thesis, 2020)For effective forest management missions, the presence of accurate information about the forest resources is indispensable. However, the absence of such relevant information for most natural forests in Ethiopia have been ... -
Modelling forest sector impacts of increased use of wood-based bioenergy in Europe and US South
(PhD Thesis;2019:01, Doctoral thesis, 2019)The European Union (henceforth, EU) is now well on track to meet the 2020 targets for renewable energy production and consumption, and recently a new 2030 Framework for climate and energy has been proposed. The forest ... -
Modelling height, height growth and site index from national forest inventory data in Norway
(PhD Thesis;2013:62, Doctoral thesis, 2013)The present study aimed to develop dominant height growth models, site index prediction models, individual tree height growth models, and height-diameter models using Norwegian national forest inventory (NFI) data. Data ... -
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 ... -
Nature-based tourism and the role of aesthetic dimensions
(PhD Thesis;2015:29, Doctoral thesis, 2022-11-15)The overall goal of the thesis is twofold. First, it aims to increase knowledge of aesthetics in nature-based tourism and to develop certain aesthetic dimensions in such a context. Second, it aims to increase knowledge of ... -
Nitrogen dynamics in an organic green manure - cereal rotation and mineralization of clover leaves at low temperature
(PhD Thesis;2016:25, Doctoral thesis, 2017-07-12)In northern temperate regions, grass-clover green manure leys are commonly used as a break crop in stockless organic cereal rotations in order to provide soil fertility and reduce the pressure of weeds, pests and diseases, ... -
Nitrogen turnover and N2O emissions as a function of edaphic and hydrological conditions in subtropical forests of South China
(PhD Thesis;2016:81, Doctoral thesis, 2017-07-12)Forests in the Chinese subtropics receive large amounts of nitrogen (N) from the atmosphere, both as ammonium (NH4 +) and nitrate (NO3 -). Many of these forests are considered to be “N-saturated”, i.e. are not able to ... -
Nitrous oxide emission and turnover in arable cropping in South East Norway
(PhD Thesis;2020:18, Doctoral thesis, 2020)Nitrogen is essential for all life on Earth. With an increasing global population, the use of reactive nitrogen has increased over the last century, resulting in increasing nitrogen pollution. Leaching of nitrate (NO3-) ... -
A novel framework for coupling mesoscale and steady-state CFD models for wind resource assessment
(PhD Thesis;2020:30, Doctoral thesis, 2020)The estimation of the energy production of wind farms is a key factor for the development of wind energy projects. Currently, these estimations utilize only a few onsite measurement points to estimate the wind resource at ... -
On-site treatment options for recovery of nutrients in dry toilets
(PhD Thesis;2022:48, Doctoral thesis, 2022)Animal and human excreta had a major role in the development of agriculture in the past, but their role was lost with the development of the modern waterborne sanitation and inorganic fertilizers. To re-envision human ...