Sökning: "Thinning"

Visar resultat 6 - 10 av 127 avhandlingar innehållade ordet Thinning.

  1. 6. Combining limnology and paleolimnology : a refined understanding of environmental sediment signal formation in a varved lake

    Författare :Dominique Béatrice Maier; Christian Bigler; Sebastian Diehl; Jasmine E. Saros; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; varved lake sediments; diatom sediment signal formation; sequential sediment trap; seasonal process timing; ice thinning; varve compaction; climate impact; catchment properties; Earth Sciences with Specialization Environmental Analysis; geovetenskap med inriktning mot miljöanalys;

    Sammanfattning : Paleoclimatic archives, such as lake sediments, extend our understanding of terrestrial and aquatic ecosystem dynamics in relation to climate variability beyond the period covered by instrumental data. In this context, annually laminated (i.e. LÄS MER

  3. 7. Silvicultural regimes and early biomass thinning in young, dense pine stands

    Författare :Lars Karlsson; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : The aim of this work was to determine how early management activities in young, dense pine forests affect tree and stand characteristics and profitability and to assess the future potential for tree biomass harvesting and use. In this respect, the long-term effects of corridor pre-commercial thinning (PCT) and thinning on growth and yield were investigated in 11 Scots pine (Pinus sylvestris L. LÄS MER

  4. 8. Influence of spacing and thinning on wood properties in conifer plantations

    Författare :Mateusz Liziniewicz; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : As reported in four appended papers (I-IV), effects of genotype (half-sib family) and initial spacing (I) or initial spacing (II) and various thinning methods (III & IV) on stands and properties of sawn-products were investigated in Scots pine (I & IV), lodgepole pine (II) and Norway spruce (III) stands in southern Sweden. Most of the analysed growth parameters were found to be affected by interaction between genotype and initial spacing, but the treatments had no significant interactive effects on most quality parameters (I). LÄS MER

  5. 9. Techniques and systems for boom-corridor thinning in young dense forests

    Författare :Dan Bergström; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : .... LÄS MER

  7. 10. The forgotten forest : on thinning, retention, and biodiversity in the boreal forest

    Författare :Julian Klein; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Fennoscandia has had a long history of intensive forest management. It can therefore be regarded a trial zone for other boreal regions which are still largely unaffected by forestry. In Fennoscandia, forestry has resulted in many threatened species and methods that maintain biodiversity have therefore been called for. LÄS MER