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… to industry are impacted by transport distance, which has a big effect on total cost in first thinnings. At a pulpwood price of 330 SEK/m3 (solid under bark), the longest profitable transport distance is 275 km for the study´s mean object. The pulpwood price has a large impact …
… be 10 g/sq m of dry reindeer lichen (1600 kg/ha). With these prerequisites the total dispersal cost would be ca 1765 SEK per ha. To conclude, the results show that the used blower-technique could be appropriate to spread lichens in small-scale in a cost-efficient manner …
… 000 ha on SCA's forest land alone which represents about 15% of the company's total forest land area). In the early 70's SCA situated a number of experimental stands in order to investigate different aspects of the exotic tree, primarily growth rate. To be able to compare the …
upstream and downstream migration of Atlantic salmon (Salmo salar) in the northern Swedish river Vindelälven
… back to the Baltic Sea. The effect of ladder passage variables (time to pass, total time in the ladder, passage day over the ladder) at a fish ladder downstream in the river Umeälven, as well as fish size, were evaluated to determine if differences in upstream migration distance …
implications for human harvest?
… wolf (Canis lupus) predation on moose (Alces alces) have focused on the total annual consumption of moose within a wolf territory but few have tried to describe the spatial impact of wolf predation on a local scale. In this study I have analyzed wolf movement data, wolf …
Överföring från väg till järnväg
Road transports stand for a great part of Sweden’s total CO2-emissions. Transports are expected to increase over the coming years, and with those the emissions. A greater environmental awareness leads to increased demands for environmentally friendly transport. The aim of this …
… thinning was the average stand density 1647 trees/ha. Twenty percent of the total surface of the stand were strip roads, and the average width of the strip road was 4.3 m. The number of damaged residual trees correspond to 2% of the total number of residual trees. The total time …
längs Annetorpsvägen i Hyllie, Malmö
… and positioning of the barrier. The results show that two lengths with a total distance of 400 meters is appropriate for applying photovoltaic noise barriers. Along distance A, a PVNB with a total capacity of 19 kWp is expected to generate 18 000 kWh per year assuming realistic …
… a ventilation system calculations have to be made in order to determine the total pressure loss of the system. A series of simplifications are applied when using theoretical calculations. The total pressure loss of the system is assumed to be the sum of the pressure loss of each …
Fallstudie Uppsala län med pendlingsomland
… to bus stops or railway station also has a significant effect on how long the total travel time will be. Urban areas with access to rail services had the best opportunities to reach larger cities and that give also better access to labour market. From our study of the Uppsala …
Biodiversity can be described as the total variation of life forms, where diversity ranges from gene level up to the ecosystem level. The diversity can be calculated in a number of ways, and this study use one of these methods. In this study empirical food webs have been used …
Beräkning av utnyttjningstid för en uppvärmd konstgräplan med alternativa rörplaceringar
… heating cables, which are connected in parallel, consist of PVC tube and the total length is about 40 kilometers. The heating cables are 154 mm in plan, with a c/c distance of 200 mm. Forward and return line temperatures are 5.5°C and 2.5°C and the flow is 73m3/h. The purpose of …
Kan den fungera som en källa till naturvetenskaplig kunskap?
… the soluble P, an NH4Cl extraction was done. This was also analysed for total soluble P after oxidation with peroxodisulphate. The sediment was also analysed for total-P and organic P by drying, dispersion in a mortar and sieving followed by boiling in HCl. Analysis of …
… the soluble P, an NH4Cl extraction was done. This was also analysed for total soluble P after oxidation with peroxodisulphate. The sediment was also analysed for total-P and organic P by drying, dispersion in a mortar and sieving followed by boiling in HCl. Analysis of …
beskrivning av en gallringsmodell för granskog som tillämpas på Trolleholms Gods
… 1,1 at the first thinning. In average the first thinning is carried out at the total age of 26 years, and the mean thinning interval is 4 years. The growth rate of the dominant height is lower compared to stands thinned from below according to Hägglund (1973). This might be an …
