175 uppsatser · sida 4 av 12
en fältstudie över föryngring, trädslagsfördelning och död ved 14 år efter åtgärd
… by deciduous trees are today characterized by a dense overgrowth of Norway spruce. By actively paying attention to nature in forestry (nature restoration), it is possible to partly reconstruct habitats or disturbances that are necessary to favour the biological values. The aim …
… diameter of the stump, tree species and the humidity of the soil. Stumps from spruce on fresh soil took less time to harvest than stumps from spruce on moist soil. Stumps from pine took more time to harvest than stumps from spruce. A stump with a diameter of 20 cm took 55-70 s …
The effect of inoculation on containerized pine and spruce seedlings in a nursery with two ectomycorrhizal fungi was investigated in regard to the development of mycorrhiza and plant growth. The fungi were Elaphomyces muricatus and Elaphomyces granulates and the inoculated …
en metod för tillämpning i ett kontinuitetsskogsbruk?
… were represented in each stand. Beside oak, the stands are dominated by Norway spruce (Picea abies) and beech (Fagus sylvatica).The number of stems of young oaks-, between 4 and 20 cm, were between 38 and 64 per ha. In one of the stands the number of oak seedlings (
… the storms Gudrun and Per, the areas became planted with new plants, mainly spruce, but also other tree species. Storm areas are now being invaded by naturally rejuvenated birch in the tilling tracks. Since the birch often is initially growing faster than the spruce it is …
en intervjustudie
… the storms Gudrun and Per, the areas became planted with new plants, mainly spruce, but also other tree species. Storm areas are now being invaded by naturally rejuvenated birch in the tilling tracks. Since the birch often is initially growing faster than the spruce it is …
the importance of landscape structure and forage availability
… by red deer (Cervus elaphus) cause extensive damage to economically valuable spruce trees (Picea abies) in Swedish forests. The underlying causes for bark-stripping are not fully understood, and the frequency and severity of damage unpredictably differ between regions. In this …
… studied with the help of spore traps from three different tree species;Norway spruce, Scots pine and hybrid larch. A total of 146 spore traps, evenly distributed inall five sites were analyzed. The spore traps were exposed for three hours then brought backto the laboratory for …
… studied with the help of spore traps from three different tree species;Norway spruce, Scots pine and hybrid larch. A total of 146 spore traps, evenly distributed inall five sites were analyzed. The spore traps were exposed for three hours then brought backto the laboratory for …
… values and suitable pH. Since many of these are being planted with Norwegian spruce today, when evaluating poplar, comparisons should be made against the production of these. To try to predict the potential of production and survival we have looked at the only three plantations …
… production was also compared with the production-showing tree species (pine or spruce) on the plot to find the areas where birch best could match their production. The sites where birch had the highest production were low altitude and mesic sites with rich field layer type and …
en simulering i Heureka
… production, when different proportions of nitrogen-fixing Alder were part of spruce stands. A second goal was to identify at which approximate proportion of Alder the highest volume production was achieved. In Heureka StandWise a mixed population consisting of various shares of …
… purpose of this report was to investigate if there are any correlation between spruce medium height in young spruce stands and the number of birch stump shoots. The purpose was also to investigate if there are any correlation between the spruce height growth after clearing and …
… method (GIM) can be used for site index predictions in younger Norway spruce (Picea abies (L.) Karst.) stands than recommended by current guidelines. For SICM it was thus investigated whether the method could be used for stands younger than ten years, and for GIM it was tested …
… tree species in order to spread the risks in forestry. Douglas fir, Sitka spruce, Freemont cottonwood and hybrid aspen are examples of popular foreign tree species that along with western red cedar could have a future in the Swedish forests.Södra Skogsägarna and SLU have …
