Search for dissertations about: "stumps"
Showing result 6 - 10 of 44 swedish dissertations containing the word stumps.
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6. Impact of Heterobasidion spp. root rot in conifer trees and assessment of stump treatment : with emphasis on Picea abies, Pinus sylvestris and Larix × eurolepis
Abstract : In the thesis four studies were conducted to understand the impact of Heterobasidion spp. on Picea abies, Pinus sylvestris, and Larix × eurolepis in southern Sweden, and the efficacy of stump treatment against infection in order to economically assess control measures. The ability of secondary spread of H. READ MORE
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7. Bark beetles facilitate the establishment of wood decay fungi
Abstract : Forests in the northern hemisphere are largely dominated by conifers and provide a key habitat for a multitude of species. Wood decay fungi, i.e. basidiomycetes, are important for nutrient cycling. READ MORE
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8. Empirical models for estimating volume and biomass of poplars on farmland in Sweden
Abstract : There is growing interest in establishing short-rotation poplar plantations in Sweden, primarily as a future feedstock for bioenergy. Cost-efficient planning and effective management of these plantations would be greatly facilitated by robust equations for estimating the taper, volume and height of poplar trees, and the biomass of poplar stumps and roots. READ MORE
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9. Energy use and environmental impact of roundwood and forest fuel production in Sweden
Abstract : The increasing awareness of climate change issues, unstable fossil fuel prices and concerns about energy security are leading to a rising demand for forest products. If meeting this demand involves increased harvesting it is essential to employ efficient systems that allow sustainable forest management. READ MORE
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10. A discrete-event simulation approach to improve efficiency in stump fuel supply chains
Abstract : Current concerns about climate change and fossil fuel dependency have intensified interest in renewable energy and increased demand for sustainable alternatives. Softwood tree stumps could be a very interesting renewable fuel assortment. The stump-root system constitutes about 25% of stem volume. READ MORE