Sökning: " woody debris"

Hittade 2 avhandlingar innehållade ordet  woody debris.

  1. 1. Biodiversity in fragmented boreal forests assessing the past, the present and the future

    Författare :Håkan Berglund; Umeå universitet.; [2004]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Ecology; bryophytes;  CWD;  edge effects;  fragmentation;  fungi;  habitat destruction;  historical records;  indicator;  lichens;  regression;  species-area relationship;  value pyramids;  woody debris ; Ekologi; NATURAL SCIENCES Biology Terrestrial; freshwater and marine ecology; NATURVETENSKAP Biologi Terrestisk; limnisk och marin ekologi; ekologisk botanik; Ecological Botany;

    Sammanfattning : The aims of this thesis are to (1) analyze the predictability (indicators) of plant and fungal species diversity in old-growth forests, and (2) assess the history and biodiversity of woodland key habitats (WKHs) and their potential to maintain species diversity in fragmented boreal forest landscapes. Predictability was explored in Granlandet nature reserve, an unexploited landscape composed of discrete old-growth Picea forest patches of varying size isolated by wetland, reflecting conditions of insular biota at stochastic equilibrium. LÄS MER

  2. 2. Function and dynamics of woody debris in boreal forest streams

    Detta är en avhandling från Umeå : Ekologi och geovetenskap

    Författare :Niklas Dahlström; Mittuniversitetet.; Umeå universitet.; [2005]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURAL SCIENCES Biology Terrestrial; freshwater and marine ecology; NATURVETENSKAP Biologi Terrestrisk; limnisk och marin ekologi; Boreal forest;  CPOM;  CWD;  forest management;  geomorphology;  LWD;  riparian forest;  retention;  residence time;  streams;  Sweden;  woody debris;

    Sammanfattning : The work in this thesis deals with (1) the effects of woody debris on stream channel morphology and retention of organic material, and (2) the dynamics of woody debris and its relation to riparian forest history and composition. The studied stream reaches are situated in mature, productive forests in the boreal zone of Sweden. LÄS MER