69 uppsatser · sida 1 av 5
… all the surveyed stands were fenced to prevent herbivores from browsing on the young cherry saplings. The conclusion from this survey is that cherry tree establishment requires control of competing vegetation. Given the right circumstances the growth can possibly be comparable …
… Several of the species in both groups were found in both the oldest and the youngest stands. The results of this study indicate that T. matsutake is a species that is found mainly in older forests, which have had a continuity of trees.
en metod för tillämpning i ett kontinuitetsskogsbruk?
… made-, one of the stands was 87 and the two others were 106 years old. In the younger stand cuttings have repeatedly been made since the stand was in its thirties, in the other two since their fifties. Five sample plots in each stand with the radius of 10 metres were used for …
The aim with this study was to investigate mortality in older respectively younger beech stands (Fagus sylvatica), the different types of dead wood in the forest and the availability of coarse woody debris (CWD). The research was carried out in previously managed and seminatural …
en studie av olika beståndstyper inom Hamra kronopark, Dalarna
… and willows had a DBH between 11 and 20 cm, indicating a low establishment of young trees. In one of the studied reserves, 24 of 25 aspens and goat willows present in 1926 had died in 1998. Cyanobacterial lichens on goat willow had the highest frequency in one of the two managed …
en skogshistorisk analys av Ekoparken Skatan
… 130 % since 1915. The old stands in the area have thus become denser and younger. The historical retrospective study performed on the present old stands shows that only one of the stands was uninfluenced by industrial forestry in 1871. The old forest stands in the ecopark today …
är produktionen hållbar?
… older stands showed a declined growth when compared to the simulated growth of younger stands. Results from this study did not support the hypothesis of declined growth in mature Norway spruce on poor soils. The simulated growths of the stands were the same as the observed …
… age. Basal area increment of Scots pine was larger than Norway spruce for young stands, and smaller than Norway spruce for older ones. Average height was 2.3 m higher for Scots pine stands than for Norway spruce stands. Height growth in the last year was also higher for Scots …
Silviculture in young stands in Sweden is below the mark concerning what has to be done in the forest, and it is time to solve the problem. The problem will not be solved only by the private forest owners, professional help is needed. Skogsägarna Mellanskog is one of four forest …
… Master’s thesis. Today SCA Skog has a great need to update their informtion on young forest stands across large areas. Traditional field inventory methods for updating stand databases are expensive and time consuming. However, the inventory could be made more efficient if stand …
… height of 100 meters. In total, data were collected for 48 of Holmen Skog’s young stands in Västerbotten and 21 of these were selected for the study (including two stands that were removed because they had been thinned after the air photo acquisition). A majority of the stands …
woodlandkvarter från Alnarp till Jönköping
This is a thesis about design of young stands of trees. A big source of inspiration has been Västerskog and Tor Nitzelius Park in Alnarp which both consists of a structure of squares. I wanted to examine if this type of planting could be valuable from an aesthetic and …
Young stands in urban forests often lack a shrub layer, though shrubs play an important structural and biological role in forests. All layers interact with one another to form a multilayered stand, in which shrubs have a vital role.In this diploma thesis, theoretical models for …
… a big ”moose explosion”. The main food source for moose during the winter is young pine (Pinus sylvestris) and birch (Betula spp.). The high moose population has therefore lead to high damage on pine forests over big areas. These forests are now about to be commercial thinned …
… study area were inventoried with respect to age, density of trees, quantity of young broadleaves, the presence of pine regeneration and Phellinus pini. With binary logistic regression the effects of the environmental variables and connectivity were tested. Pine exists in the …
