Search for dissertations about: "Land cover"

Showing result 11 - 15 of 224 swedish dissertations containing the words Land cover.

  2. 11. Global-Scale Modelling of the Land-Surface Water Balance : Development and Analysis of WASMOD-M

    Author : Elin Widén-Nilsson; Sven Halldin; Chong-yu Xu; Lars-Christer Lundin; Jens Christian Refsgaard; Uppsala universitet; []
    Keywords : Hydrology; Global; Water balance; Runoff; Regionalisation; Model uncertainty; Multi-objective; Parameter; Evaluation criteria; Routing; Climate change; Hydrologi;

    Abstract : Water is essential for all life on earth. Global population increase and climate change are projected to increase the water stress, which already today is very high in many areas of the world. The differences between the largest and smallest global runoff estimates exceed the highest continental runoff estimates. READ MORE

  4. 12. Characterisation of PFASs and Organofluorine in Freshwater Environments : Transfer from water to land via emergent aquatic insects

    Author : Alina Koch; Thanh Wang; Micael Jonsson; Leo W. Y. Yeung; Anna Kärrman; Lutz Ahrens; Jonathan Martin; Örebro universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; PFASs; riparian zone; emergent aquatic insects; terrestrial consumers; stable isotopes; organofluorine mass balance; AFFF; point sources;

    Abstract : Per- and polyfluoroalkyl substances (PFASs) are anthropogenic contaminants of emerging concern, because many are highly persistent to degradation and have been linked to adverse effects in humans as well as their ubiquitous spread in aquatic environments. This thesis investigated distribution of PFASs and organofluorine in freshwater environments impacted by PFAS point sources. READ MORE

  5. 13. Ecological rehabilitation of degraded hill slopes in southern Wello, Ethiopia

    Author : Kebrom Tekle; Ingvar Backéus; Eddy van der Maarel; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Ecology; Classification; hillside closures; intercept lengths; land cover; land degradation; local participation; natural regeneration; ordination; permanent plots; soil seed banks; succession; Ekologi; Terrestrial; freshwater and marine ecology; Terrestisk; limnisk och marin ekologi; Ecological Botany; Ekologisk botanik;

    Abstract : Clearing of vegetation has left large areas of southern Wello (Ethiopia) at a high risk ofland degradation. In this study, the causes, extent and consequences of land degradationproblems are reviewed. To see land cover changes, aerial photographs from 1958 and1986 were compared with the help of a GIS procedure. READ MORE

  6. 14. Felling Forests from Afar: Quantifying Deforestation Driven by Agricultural Expansion and International Trade

    Author : Florence Pendrill; Chalmers tekniska högskola; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Forest transitions; Land cover; Carbon footprints; Agriculture; Forestry; Carbon emissions; Land use; International trade; Deforestation;

    Abstract : Deforestation is a major source of human-caused greenhouse gas emissions and the largest threat to terrestrial biodiversity. Most forest loss is due to the expansion of agricultural land use increasingly driven by international demand for food, fuel and fibre. READ MORE

  7. 15. Where the Wind Blows : the socio-political geography of wind power development in Finland, Norway and Sweden

    Author : Johanna Liljenfeldt; Örjan Pettersson; Kerstin Westin; Olof Stjernström; Peter Schmitt; Umeå universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; wind power; planning; land use; participation; power relations; energy justice; mixed methods; Finland; Norway; Sweden; Social and Economic Geography; kulturgeografi;

    Abstract : This thesis analysis the planning process for large-scale wind power development in Finland, Norway and Sweden. The aim is to explore the emerging power relations and socio-economic dynamics of the negotiation, planning and realization of this new development. READ MORE