Essays about: "tundra"

Showing result 11 - 15 of 47 essays containing the word tundra.

  1. 11. THE INFLUENCE OF TUNDRA VEGETATION ON SOIL TEMPERATURES

    University essay from Göteborgs universitet / Instiutionen för biologi och miljövetenskap

    Author : Edith Aspelin; [2022-09-28]
    Keywords : ;

    Abstract : The arctic has experienced more rapid global warming and is more sensitive to temperature changes compared with the rest of the world. We can already see how vegetation distributed across the arctic tundra has changed in composition, height, and abundance. READ MORE

  3. 12. 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 geovetenskap

    Author : Alice Sandvärn; [2022]
    Keywords : Hg concentration; vegetation types; Arctic tundra; elevation gradient; XRF;

    Abstract : 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

  4. 13. Födovalspreferenser hos en arktisk specialist : vad föredrar Gynaephora groenlandica (Lepidoptera:Erebidae) att äta på Wrangelön?

    University essay from SLU/Dept. of Forest Ecology and Management

    Author : Beatrice Elfvenfjärd; Erika Åmansson; [2022]
    Keywords : Gynaephora groenlandica; arktisk ullbjörnslarv; födopreferenser; arktisk tundra; arktisk specialist; växtegenskaper;

    Abstract : The Arctic tundra has many unexplored areas. Due to the harsh climate and the difficult accessibility, there is a lack of knowledge about the different species that live under these circumstances. Herbivores in this environment have a large effect on the plant community, one of these is the moth butterfly larva Gynaephora groenlandica. READ MORE

  5. 14. 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

    Author : Alice Sandvärn; [2022]
    Keywords : Hg concentration; vegetation types; Arctic tundra; elevation gradient; XRF;

    Abstract : 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

  6. 15. Seasonal permafrost subsidence monitoring in Tavvavuoma (Sweden) and Chersky (Russia) using Sentinel-1 data and the SBAS stacking technique

    University essay from Stockholms universitet/Institutionen för naturgeografi

    Author : Ida Rehn; [2022]
    Keywords : InSAR; Sentinel-1; SBAS; Permafrost; Subsidence; Permafrost thaw;

    Abstract : Permafrost deformation is expected to increase due to climatic perturbations such as amplified air and soil temperatures, resulting in permafrost thawing and subsequent subsidence. Palsas and peat plateaus are uplifted ice-rich peat mounds that experience permafrost subsidence. READ MORE