Browsing Doctoral theses (MINA) by Title
Now showing items 9-28 of 106
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Biochar for N2O mitigation and improved delivery and retention of mineral nitrogen in compost and soil
(PhD Thesis;2022:15, Doctoral thesis, 2022)Biochar is a promising technology for simultaneously storing carbon in soils, improving crop yields and reducing greenhouse gases. In the last 20 years, research efforts into biochar and its application to soils have been ... -
Biomass estimation models and methods for miombo woodlands of Malawi using field and remotely sensed data
(PhD Thesis;2016:92, Doctoral thesis, 2016)Dry tropical forests, such as the miombo woodlands, play an important role in the global carbon budget as well as in contributing towards the sustainable development of countries such as Malawi. To ensure sustainability ... -
Biomass stock and change estimation in boreal forests using remotely sensed data : results from empirical studies and simulations
(PhD Thesis;2017:69, Doctoral thesis, 2017)Airborne LiDAR (Light Detection and Ranging) has become an important remote sensing tool for forest inventory. In the past two decades, this technology has seen a rapid status transition from experimental to operational, ... -
Brown trout anadromy in the Anthropocene
(PhD Thesis;2024:50, Doctoral thesis, 2024)Recent human-induced changes in both marine and freshwater environments are likely to alter adaptative landscapes in migratory species that utilise both habitats. Anadromous salmonids, like the brown trout (Salmo trutta), ... -
Characterization of radioactive particle exposure using micro and nano-focused X-ray techniques
(PhD Thesis;2021:95, Doctoral thesis, 2021)Radionuclides may be introduced into the environment from a variety of sources both naturally occurring, such as weathering from ore deposits, and anthropogenic, such as releases associated with the nuclear weapons and ... -
Choice of technology in less industrialized countries with particular reference to forestry and sawmilling
(Rapport (Norges landbrukshøgskole. Institutt for skogøkonomi);1988:3, Doctoral thesis, 1988)An overview is given of existing works regarding choice of technology in less industrialized countries (LIC), with special emphasis on forestry and forest industry projects. Some omportant theoretical aspects regarding the ... -
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 ... -
Climate Smart Agriculture in smallholder farming systems in the central rift valley of Ethiopia : potentials for improving productivity, climate change adaptation and mitigation
(PhD Thesis;2019-95, Doctoral thesis, 2019)Climate Smart Agriculture (CSA) is an approach that aims at achieving sustainable food production and security through providing flexible but socially acceptable cultivation methods. For this, CSA seeks to sustainably ... -
The conservation value of power-line clearings for native insect-pollinated plants and wild bees in boreal forest landscapes
(PhD Thesis;2020:31, Doctoral thesis, 2020)Worldwide declines in wild pollinators are threatening the provision of vital pollination functions and services to both native plant communities and crops. Habitat loss due to human land use changes is identified as one ... -
Crop pollination by insects in small-scale agroforestry farming in Tanzania
(PhD Thesis;2019:101, Doctoral thesis, 2019)Context. The decline of pollinating insects worldwide threatens pollination services for wild angiosperms and important food crops. The importance of insect pollination services for food production has been documented for ... -
Cultivating conflict : perspectives on the human dimensions of voluntary Atlantic salmon (Salmo salar) hatcheries in a conservation context
(PhD Thesis;2018:76, Doctoral thesis, 2018)The overall goal of this thesis is to offer a more in-depth human dimensions understanding of voluntary Atlantic salmon hatcheries, focusing on the underlying drivers of conflict over hatchery use in a conservation context. ... -
Data, models, and insights for informed decision-making in the management of exclosures in Tigray, northern Ethiopia
(PhD Thesis;2018:89, Doctoral thesis, 2018)In Ethiopia, exclosures are rapidly expanding and performing good to reverse deforestation and land degradation. Local communities, particularly in Tigray show a clear preference for exclosures, which are useful for ecosystem ... -
Demand flexibility in electricity markets
(PhD Thesis;2021:1, Doctoral thesis, 2021)Demand flexibility integration is an important measure for the decarbonization of energy systems and a more efficient use of resources. Demand flexibility can provide multiple benefits to the power system and reduce system ... -
Density and bending properties of Norway spruce (Picea abies (L.) Karst.) structural timber – Inherent variability, site effects in machine strength grading and possibilities for presorting
(PhD Thesis;2016:43, Doctoral thesis, 2020-11-19)Density, modulus of elasticity (MOE) and bending strength (MOR) are the most important properties for structural timber. These properties vary significantly within European species, both between and within countries. The ... -
Detection of root, butt, and stem rot in Picea abies with remotely sensed data
(PhD Thesis;2023:28, Doctoral thesis, 2023)Root, butt, and stem rot fungi (RBSR) are among the most significant forest pathogens in Norway. RBSR leads to decay of the tree stem and disruption of vascular tissue. Impaired vascular function reduces tree growth and ... -
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 ... -
An ecological and socio-economical study of a locally endangered tree species, Olea europaea subsp. cuspidata, in a dry Afromontane forest
(PhD Thesis;2018:94, Doctoral thesis, 2018)Afromontane forests are found in the tropics and are often threatened because of land use changes. These forests have various types of multipurpose tree species that provide different services to the local communities. ... -
Ecological impacts of red deer browsing in boreal forest
(PhD Thesis;2018:66, Doctoral thesis, 2018)The populations of wild ungulates are increasing in the northern hemisphere, and in many areas, their populations have developed from critically low to historically high numbers within the last century. There are multiple ... -
Effect of biochar and crop rotation with pigeon pea on plant available phosphorus under Conservation Agriculture
(PhD thesis;2024:31, Doctoral thesis, 2024)Climate change and variability pose a major threat on household food security in Southern Africa especially on smallholder farms in areas with low, erratic, and highly variable rainfall with frequent droughts. The effects ... -
Effect of soil and water conservation management on surface runoff, soil erosion, soil fertility and crop yield in southwest Ethiopia
(PhD Thesis;2020:72, Doctoral thesis, 2020)Soil and water are central resources for crop production. Soil erosion by water (water erosion) is a major cause of soil degradation and cropland productivity decline in the world. In Sub-Saharan Africa (SSA), where food ...