Essays about: "Northern Scandes"

Showing result 1 - 5 of 6 essays containing the words Northern Scandes.

  1. 1. Investigating surface spring snow : Changes in the isotopic composition and conductivity along an orographic precipitation gradient in northern Fennoscandia

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Sara Andersson; [2023]
    Keywords : stable isotopes; snow; precipitation; hydrology; orography; earth science;

    Abstract : Stable isotopes of oxygen (O18) and hydrogen (H2) are used as proxies of past climates when ice preserved in the polar icecaps. The main assumption when doing paleoclimatic reconstructions using these isotopes is that the isotopic composition of the snow that turned into ice reflect the present temperature of the planet during deposition. READ MORE

  3. 2. MOUNTAIN ROADS AND THE HOMOGENIZATION OF PLANTS. A study on plant communities and their traits along the elevational gradient.

    University essay from Göteborgs universitet / Instiutionen för biologi och miljövetenskap

    Author : Violetta Chernoray; [2022-09-28]
    Keywords : anthropogenic disturbance; spatial ecology; Northern Scandes; functional traits; roadsides; beta-diversity.;

    Abstract : Overexploitation, land use, and other anthropogenic disturbances have increased in recent years, and are expected to increase even further. A very common anthropogenic disturbance, that can be seen even as far as in mountain regions, is roads. READ MORE

  4. 3. Cryptic refugia vs. Tabula Rasa: Boreal trees in glacial Fennoscandia : Plant growth during the Weichselian glaciation and the early Holocene in northern Europe

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Anne van Woerkom; [2016]
    Keywords : boreal trees; Fennoscandia; cryptic refugia; Weichselian; glacial survival;

    Abstract : Recent studies applying innovative technologies, such as genetic analysis and carbon dating, contradict the palynological based assumption that Scots pine (Pinus sylvestris) and Norway spruce (Picea abies) vanished from Fennoscandia during the Last Glacial Maximum (c. 20.000 yrs BP) and re-colonized after the cold Younger Dryas (c. 12. READ MORE

  5. 4. Increase of tree abundance between 1960 and 2009 in the treeline of Luongastunturi in the northern Swedish Scandes : change detection based on aerial photographs

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Oskar Löfgren; [2011]
    Keywords : geography; physical geography; treeline dynamics; mountain birch; aerial photo interpretation; geografi; naturgeografi; trädgränsen; fjällbjörk; flygbildstolkning; Earth and Environmental Sciences;

    Abstract : Aerial photo interpretation shows a recent densification of trees has been occurring between 1960 and 2009 in the mountain birch (Betula pubescens ssp. czerepanovii) forest of the treeline ecotone in northern Swedish mountains. READ MORE

  6. 5. STABLE CARBON ISOTOPES IN SPELEOTHEMS FROM TEMPERATE AREAS

    University essay from Institutionen för naturgeografi och kvartärgeologi (INK)

    Author : Carl Österlin; [2010]
    Keywords : Speleothem; Stalagmites; Stable Carbon Isotopes; Temperate Areas; Tree Line Changes; Holocene;

    Abstract : Speleothems are considered a reliable proxy for paleoclimatic reconstructions and analysis of stable carbon isotopes in speleothems is used for paleoclimatic reconstructions. However, in temperate areas that lacks C4 vegetation there are uncertainties in how to interpret changes in the δ13C signal. READ MORE