Essays about: "subarctic"
Showing result 11 - 15 of 58 essays containing the word subarctic.
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11. Evaluating DInSAR for measuring seasonal elevation dynamics at the Vissátvuopmi palsa mire complex in Northern Sweden
University essay from Göteborgs universitet/Institutionen för geovetenskaperAbstract : During recent years the palsa mires of Fennoscandia have reported to be undergoing extensive lateral degradation, and in a warming environment the palsa mires of Sweden among others are threatened to thaw completely by the end of this century. Since subarctic peatlands account for 30% of the global soil organic carbon storage, small degradation changes in these areas globally, can potentially change the greenhouse gas emissions on a worldwide scale. READ MORE
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12. ARCTIC MYCORRHIZAL INTERACTIONS UNDER CLIMATE CHANGE
University essay from Göteborgs universitet / Institutionen för biologi och miljövetenskapAbstract : The Arctic is experiencing climate change at an extreme rate, affecting both the rates of plant growth and nutrient cycling. Due to the changes in temperature, but also in nutrient cycling, with increased nutrient mineralization and decreasing P:N ratio (phosphorus, P and nitrogen, N), the arbuscular mycorrhizal fungi (AM) that are prevalent in warmer soils have shown the potential to increase in the otherwise unfavorable Arctic environment. READ MORE
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13. Hg concentration in humus soils in different Arctic and Subarctic tundra vegetation types : Including a method comparison for analyzing metals in humus soils
University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskapAbstract : Heavy metals, such as mercury (Hg), have a long residence time in the atmosphere and can be transported long distances and deposited in the Arctic via wet and dry deposition. Still, there are few studies on the complex mercury cycle and how different plant groups absorb Hg. READ MORE
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14. Acoustic Doppler Current Profiling for streamflow measurements in subarctic climate
University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurserAbstract : The ADCP (Acoustic Doppler Current Profiling) technology has been widely available and acknowledged as an instrument used for different types of flow measurement since 1990s, from small scale river measurements to larger ocean current mappings. This study was conducted by the author in cooperation with SWECO with the focus on smaller scale measurements especially on small natural watercourses in a sub-arctic climate with the purpose to examine if the ADCP technology can be used as a complement to the more classic methods for this type of flow measurements Current meter and Conductivity flow measurements. READ MORE
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15. Hg concentration in humus soils in different Arctic and Subarctic tundra vegetation types : Including a method comparison for analyzing metals in humus soils
University essay fromAbstract : Heavy metals, such as mercury (Hg), have a long residence time in the atmosphere and can be transported long distances and deposited in the Arctic via wet and dry deposition. Still, there are few studies on the complex mercury cycle and how different plant groups absorb Hg. READ MORE
