Sökning: "bark"
Visar resultat 26 - 30 av 163 avhandlingar innehållade ordet bark.
26. Conifer chemical defense : Rugulation of bark beetle colonization and pheromone emission
Sammanfattning : Terpenes and phenols are of importance in conifer defense against insects and pathogens. Knowledge about tree chemical defense is vital for developing practical methods to maintain healthy forests. LÄS MER
27. Bark beetles facilitate the establishment of wood decay fungi
Sammanfattning : 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. LÄS MER
28. Interactions between calcium and heavy metals in Norway spruce : Accumulation and binding of metals in wood and bark
Sammanfattning : Waste products from the forest industry are to be spread in forests in Sweden to counteract nutrient depletion due to whole tree harvesting. This may increase the bioavailability of calcium (Ca) and heavy metals, such as cadmium (Cd), copper (Cu) and zinc (Zn) in forest soils. LÄS MER
29. Industrial by-products in treatment of metals from polluted water
Sammanfattning : Water treatment can be carried out effectively by passive, low cost methods, as an addition or alternative to existing advanced technology. Energy and resource use can be optimized (i.e. minimized) by reusing by-products from local or regional manufacturing of timber and steel. LÄS MER
30. Juvenile birch in Sweden : Selected stem characteristics for interior and furniture applications
Sammanfattning : In response to the furniture industry’s growing demand for raw material, large volumes of juvenile silver birch and downy birch stems available from pre-commercial thinning operations in Sweden’s forests could offer solutions. However, such stems are not currently used on an industrial scale, and most research conducted on birch stems in general has neither focussed on young trees nor the potential use of the central stem part around the tree pith. LÄS MER