Sökning: "forest clearing"

Visar resultat 1 - 5 av 14 avhandlingar innehållade orden forest clearing.

  1. 1. Forest edge development : management and design of forest edges in infrastructure and urban environments

    Författare :Björn Wiström; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : This thesis investigates design guidelines and management systems for the development of stationary forest edges with a graded profile in infrastructure and urban environments. The spatial restriction for the edge to move forward caused by human land use counteracts the natural dynamics and development patterns of graded forest edges. LÄS MER

  3. 2. Large Eddy Simulation of clearings in forest and their effect on wind turbines

    Författare :Johanna Matsfelt; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; OpenFOAM; FAST; Wind turbine; SOWFA; forest clearing; CFD; ALM; LES;

    Sammanfattning : When the number of wind farms increases, the number of wind turbines placed in forested areas will also increase, this is because of the large forest areas in Sweden. When the wind turbines are placed in forested areas the fatigue loads increase drastically, so their maintenance costs increase making them less profitable. LÄS MER

  4. 3. Oak as retention tree in commercial spruce forests : effects on species diversity of Saproxylic beetles and wood production

    Författare :Maria Susanna Koch Widerberg; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : Retaining trees valuable for biodiversity is a common conservation measure. There are indications that such trees have important benefits for the diversity of many species groups. However, retaining trees may also have negative effects on timber production. LÄS MER

  5. 4. Improving supply chains for logging residues and small-diameter trees in Sweden

    Författare :Raul Fernandez Lacruz; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : Forestry is expected to play a key enabling role in the transition towards a low-carbon, sustainable, and circular biomass-based economy in Europe. This will increase demand for forest biomass as a source of energy and traditional and new wood-based products. LÄS MER

  7. 5. Heart rot of spruce and alder in forests of Latvia : impact and possibilities for silvicultural control

    Författare :Natalija Arhipova; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : Heart rot causes great decrease in timber quality throughout the world. In the conifer forests of Northern Hemisphere the most significant losses are caused by fungi from the Heterobasidion annosum species complex. LÄS MER