Sökning: "Forestry"

Visar resultat 26 - 30 av 1129 avhandlingar innehållade ordet Forestry.

1. 26. Regeneration in continuous cover forestry systems

   Författare :Charlotta Erefur; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
   Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

   Sammanfattning : The overall aim of the studies underlying this thesis has been to qualify and quantify the regeneration of tree species in a range of typical growing environments of possible Continuous Cover Forestry (CCF) silvicultural systems in boreal forests of northern Sweden. Data presented in Papers I and II show that the light environment did not differ significantly between points at different distances to trees, but it was clearly affected by the stand stem density (SSD). LÄS MER

3. 27. The forestry-wood chain : simulation technique, measurement accuracy, traceability concept

   Författare :Sorin Chiorescu; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Träteknik; Wood Technology;

   Sammanfattning : A customer-oriented production philosophy, an integrated forestry-wood chain and the global vision of Precision Forestry are concepts that researchers and people involved in the forest and wood industry have to deal with in the beginning of this new millennium. Fulfilling the specific requirements for dimension, length, biological features and proof-of-origin that customers demand for the wood products entails the existence of advanced methods and tools for understanding and thus controlling the production process along the forestry-wood value chain. LÄS MER

4. 28. Improved environmental assessment in the development of wood-based products: Capturing impacts of forestry and uncertainties of future product systems

   Författare :Gustav A Sandin; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; wood; water use; scenario modelling; land use; impact assessment; product development; environmental assessment; end-of-life modelling; sustainability assessment; forestry;

   Sammanfattning : The prospect of reducing environmental impacts is a key driver for the development of new wood-based products. But as wood-based products are not necessarily environmentally superior to non-wood alternatives, there is a need to assess the environmental impact of the product and guide the development process. LÄS MER

5. 29. Evaluating thinning practices and assessment methods for improved management in coniferous production forests in southern Sweden

   Författare :Magnus Persson; Johan Bergh; Lauri Mehtätalo; Linnéuniversitetet; []
   Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; thinning; within-stand variation; tree species classification; Scots pine; Norway spruce; Sentinel-2; Heureka; Precision forestry; thinning detection; basal area; Forestry and Wood Technology; Skog och träteknik;

   Sammanfattning : Most of our knowledge about wood production of Scots pine (Pinus sylvestris L.) and Norway spruce (Picea abies (L.) Karst.) and associated silvicultural guidelines are based on field experiments. LÄS MER

7. 30. Safety interventions in Swedish small-scale forestry

   Författare :Björn Edlund; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
   Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

   Sammanfattning : In private non-industrial forestry, self-employed work has long been associated with high risks for injuries. This thesis is based on four studies that focused on two of the major high-risk activities in this sector in Sweden: two on felling, de-limbing and bucking trees with a chainsaw; and two on off-road use of quad bikes. LÄS MER