Search for dissertations about: "ENVIRONMENTAL-CHANGES"

Showing result 1 - 5 of 173 swedish dissertations containing the word ENVIRONMENTAL-CHANGES.

  2. 1. Lake sediments around the Antarctic Peninsula : archives of climatic and environmental changes

    Author : Rolf Zale; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Lake sediments; Antarctic Peninsula; radiocarbon dating; climatic and environmental changes; sediment chemistry; naturgeografi; Physical Geography;

    Abstract : Lakes and lake sediments from four areas around the Antarctic Peninsula are described.The concentrations of trace metals in sediment are found to be a useful tool in distinguishing between the different sedimentary phases during a transition from marine to limnic environment. READ MORE

  4. 2. Enchytraeidae (Oligochaeta) in pine forest soils : population dynamics and response to environmental changes

    Author : Heléne Lundkvist; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP;

    Abstract : .... READ MORE

  5. 3. Lake sedimentary archives of medieval mining and smelting in Sweden : tracking environmental changes from site to landscape

    Author : Erik Myrstener; Richard Bindler; Christian Bigler; Elinor Andrén; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; environmental science; miljövetenskap;

    Abstract : While the environmental impact of the industrial age is massive, including climate change, pollution, microplastics and habitat loss, our influence reaches further back than many recognize. In Sweden, an early and important activity with large potential impact was the mining and smelting of iron, copper and silver ores over the last ~800 years. READ MORE

  6. 4. Coastal signals of environmental changes: foraminifera as benthic monitors

    Author : Inda Brinkmann; Kvartärgeologi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; benthic foraminifera; proxy calibration; trace element geochemistry; environmental DNA; deoxygenation; drought; coastal environments;

    Abstract : Climate changes, tightly linked to anthropogenic activities, are significantly altering environments and ecosystems globally, such as by increasing marine and coastal deoxygenation or occurrences of extreme weather events. The significance of paleoenvironmental and -climate reconstructions, as well as monitoring of current conditions, for unravelling baseline natural variation, today’s changes and potential future impacts, has been recognised by the Intergovernmental Panel on Climate Change (IPCC) reports. READ MORE

  7. 5. DISCO - Drivers and Impacts of Coastal Ocean Acidification

    Author : Laurie Charrieau; Kvartärgeologi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Coastal ocean acidification; Foraminifera; Environmental changes; pH; Salinity;

    Abstract : Ocean acidification, mainly attributed to the increasing anthropogenic CO2 in the atmosphere, is characterised by a lowering pH together with a shift in the sea water carbonate chemistry toward lower concentration of carbonate ions. On the coasts, where the environmental variability is high due to natural and human impacts, ocean acidification mainly affects the frequency, magnitude, and duration of lower pH and lower calcium carbonate saturation events. READ MORE