Sökning: "FORESTRY"
Visar resultat 1 - 5 av 839 avhandlingar innehållade ordet FORESTRY.
1. Automation in forestry development of unmanned forwarders
Detta är en avhandling från Umeå : Institutionen för datavetenskap, Umeå UniversitetSammanfattning : For the last 50 year, forestry operations have become more and more mechanized. In modern forestry in Europe two machines are typically used; a harvester that fells, debranches and cross-cuts the trees into logs and a forwarder that transports them to the nearest road. LÄS MER
2. Som man ropar i skogen : Modernitet, makt och mångfald i kampen om Njakafjäll och i den svenska skogsbruksdebatten 1970-2000
Detta är en avhandling från Human Ecology Division, Lund UniversitySammanfattning : In this dissertation, the Swedish forestry debate during the last three decades of the 20th century is analysed. The contents, values and underlying assumptions of the debate are investigated from a discoursive point of view. Ideals, methods and aesthetics are analysed, as they have been expressed throughout the debate. LÄS MER
3. Ash Products for Nutrient Recycling in Forestry : Leaching and Drying Characteristics
Detta är en avhandling från Human Ecology Division, Lund UniversitySammanfattning : As the demand for carbon dioxide neutral energy sources increases, forestry becomes more intensive. Entire trees are removed from the felling sites threatening the nutrient balance of the forest soils. LÄS MER
4. Towards semi-automation of forestry cranes automated trajectory planning and active vibration damping
Detta är en avhandling från Umeå : Umeå universitetSammanfattning : Forests represent one of the biggest terrestrial ecosystems of Earth, that can produce important raw renewable materials such as wood with the help of sun, air and water. To efficiently extract these raw materials, the tree harvesting process is highly mechanized in developed countries, meaning that advanced forestry machines are continuously used to fell, to process and to transport the logs and biomass obtained from the forests. LÄS MER
5. Skog, makt och människor. En miljöhistoria om svensk skog 1800-1875
Detta är en avhandling från Kungliga Skogs och Lantbruks AkademienSammanfattning : The aim of this dissertation is to investigate how and why silviculture was introduced in Sweden in the nineteenth century and the consequences this introduction had during the same period. The term silviculture refers to the systematic cultivation of high forest, a method that spread from Germany at the end of the eighteenth century. LÄS MER
