136 uppsatser · sida 8 av 10
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… the management goal, two different management tactics could be used for the thinning of the stand. One where the tree layer was favoured and one where the middle layer was favoured giving rise to different kind of multilayered forest structures.
The aim of the study was to compare productivity in first thinning of birch stands, when either energy- or pulpwood was harvested. The systems total profitability was also compared by including forwarding and chipping costs. A Gremo 950 HPVR harvester was used and the same …
en kvantitativ studie av organiserade skogsentreprenörer i Sverige
… professional forestry, such as soil scarification, planting and pre-commercial thinning of younger stands. In order to determine what major priorities SMF should focus on in the future a member survey was initialised and carried out by SMF together with Daniel Larsson-Snygg …
… one alternative that have shown to be profitable is stump treatment in thinnings. Stump treatment is in the present situation a common method to reduce the infections from Heterobasidion annosum in stands mainly dominated by Norway spruce (Picea abies (L.) Karst.). Previously …
… has more than 520 000 ha of Lodgepole pine. Vast areas are now ready for thinning. However, the knowledge regarding forest management practices are still relatively limited. Among other studies, a master thesis shows that many properties of quality are dependant on the initial …
… the later work of the harvester. The study compares the economic results from thinning of four parcels each treated differently regarding harsh or light pre-clearance and extraction of only pulpwood, or both pulpwood and fuel wood. In this type of spruce stand the study …
… terrain and on open terrain as well as in young stands in connection with thinning. The conclusions were that the excavators are more versatile and have greater capacity than the dedicated machine, while the latter excels in quality of work. Interestingly, there was no …
a study of stumps, roots and artificial spore infections of stumps
… pines. Because of this, new management methods such as stumptreatment during thinning, stump removal and a better habitat adaptation when re?plantingstands with Lodgepole pine might be necessary.
… and there were stands with good growth that hadbeen thinned or were in need of thinning. The inventory of damages show that frost was the main cause ofdamage in the eastern group, whereas competing vegetation was the main cause in the western group.It was difficult to determine …
… from no fertilization at all, to fertilization at every harvesting operation (thinning or final felling). A sub-study was also carried out so the reader in detail can see how the different fertilization scenarios affect individual forest stands of different nature. The analysis …
… from no fertilization at all, to fertilization at every harvesting operation (thinning or final felling). A sub-study was also carried out so the reader in detail can see how the different fertilization scenarios affect individual forest stands of different nature. The analysis …
… purpose was to: investigate if the use of digitized strip roads obtained from thinning a few years earlier increases productivity (ha/h) and efficiency (fertilized area per traveled kilometer) in forest fertilization with tractor.The efficiency increased from 4,42 to 4,75 …
results 9-19 years after stand establishment
… seeding and planting. The study also attempts to simulate growth until first thinning. Regeneration cost per hectare and tree was also evaluated for the different treatments. The study was performed in 2011 in Norrbotten County, above the Arctic Circle. There were four different …
Det här arbetet har genomförts som ett examensarbete vid institutionen för skogens ekologi och skötsel vid Sveriges Lantbruksuniversitet. Röjning är en skogsvårdsåtgärd som syftar till att glesa ut skogen så att det är möjligt att få ett högre utbyte av gagnvirke vid en kommande …
prestationsstudie av Forest ebeaver
… whether a small machine like Forest ebeaver can be profitable used in early thinning. To find this out a study has been made using the machine to thin in a young pine stand.
