Sökning: "treeline dynamics"

Hittade 2 uppsatser innehållade orden treeline dynamics.

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

   Kandidat-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

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

   Sammanfattning : 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. LÄS MER

3. 2. Within-tree fluctuating asymmetry of mountain birch in subarctic Sweden

   Master-uppsats, SLU/Southern Swedish Forest Research Centre

   Författare :Kesi Stoneking; [2011]
   Nyckelord :Mountain Birch; fluctuating asymmetry; Betula pubescens ssp. Czerepanovii; treeline;

   Sammanfattning : The mountain birch ecosystem forms the northern treeline in subarctic Europe. Since the treeline isextremely sensitive to temperature, stress in mountain birch can be used as an indicator of stress onthe ecosystem as a whole, and in predictions of how climate change factors will influence thesubalpine-tundra ecotone and treeline dynamics. LÄS MER