Search for dissertations about: "northern high latitudes"
Showing result 16 - 20 of 46 swedish dissertations containing the words northern high latitudes.
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16. Temporal and spatial dynamics in subarctic peat plateaus and thermokarst lakes
Abstract : Permafrost peatlands are widespread at high northern latitudes and are important soil organic carbon reservoirs. A future warming in these areas, as suggested by global climate models, can cause thawing and increased ground subsidence (thermokarst), resulting in changes in surface hydrology and ecosystem functioning. READ MORE
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17. Hempseed cake as a protein feed for ruminants
Abstract : Increasing the use of locally produced protein feeds in ruminant production systems in northern Europe would be a valuable development. Hemp (Cannabis sativa L.) can be cultivated at high latitudes and cold-pressing the seeds to extract the oil produces a residue, hempseed cake (HC), with a high protein content. READ MORE
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18. Towards a changed view on greenhouse gas exchange in the Arctic: new findings and improved techniques
Abstract : Arctic ecosystems represent an important component in the global terrestrial exchange of greenhouse gases and energy with the atmosphere. In the changing climate, which is most pronounced in the Arctic, the possible scenarios of greenhouse gas exchange response should be seriously considered in predictive climate modelling efforts. READ MORE
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19. Detecting changes in climate and atmospheric composition with tracers in Arctic ice caps
Abstract : Changes in climate and atmospheric composition over decades to a hundred thousand years have been studied by extracting records of various tracers from two Arctic ice cores. A seven metre long ice core of superimposed ice was recovered from the Storöya ice cap in north-eastern Svalbard. READ MORE
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20. Geophysical Applications of Vegetation Modeling
Abstract : This thesis describes the development and selected applications of a global vegetation model, BIOME4. The model is applied to problems in high-latitude vegetation distribution and climate, trace gas production, and isotope biogeochemistry. READ MORE