117 uppsatser · sida 7 av 8
en studie av 21 drabbade objekt i södra Sverige
… the ISO 14001 standard. One part of the certification is the standards of soil damages. The soil damages were over represented during 1999 and 2000. It was therefore a need to study the problem in order to see what could be done to reduces these damages. A filed study was …
… where residual stems are straddled. Early treatment is essential to limit damage on residual trees. One part of the present study is an evaluation of mechanised pre-commercial thinning using the new Vimek 404R. Vimek 404R is a fairly small machine that permits selective removal …
en analys av användbarheten med fjärranalys som hjälpmedel till röjningsrådgivning
… most objects, a fearly immediate precommercial thinning can avoid the severe damages that occurs in stands with high stem density. Thus the contact with landowners for objects found after the satellite image analysis is important. The high amount of objects in phases G1 and G2 …
… of positive effects. Among the problems are increased risk of wind throw and damage of the remaining shelter trees caused by the cutting operation. Positive effects are for example a valuable growth in the remaining trees and increased biological di-versity. This study is based …
en inventering av vägtrummor och skyddszoner kring dessa i Uppsala län och norra Västmanlands län
… Forestry is carried out as effectively as possible. This can result in damaged protection zones along the brooks. To leave protection zones means incurred costs. Furthermore, it takes time to consider which trees to leave and the harvester may not see the watercourse or may lack …
Nitrogen deposition leads to environmental damage in areas where the nitrogen deposition is high. Southwest Sweden receives an annual nitrogen deposition of up to 20 kg N/ha. Nitrogen that is not assimilated by the vegetation is accumulated in the soil, which may lead to …
fördjupning av översiktsplanen för östra Eslöv
… found the right place to build on the impacts should be minimized to make the damage as little as possible. The third step is to level out the negative changes so that the functional environmental loss is recreated at the same place as the impact take place. The impacts that are …
en studie hos Holmen skogs entreprenörer och egna maskinlag
… %) Vandalism mostly occurs during attempted thefts, locks and doors are often damaged during a theft. The estimated cost for vandalism were approximately 400 000 SEK. The estimated cost for theft including down-time was approximately 830 000 SEK. The cost represents the sum of …
en jämförelse av produktion och potentiell kvalitet hos försöksbestånd i Jämtlands län
… of Jämtland. The purpose of this study was to compare production, quality, damages and survival for Black spruce to Lodgepole pine, Norway spruce and Scots pine. The hypothesis was that the performance varies with site type. Site index was classified according to vegetation …
… tightened. Another present problem was the locking washer which sometimes gets damaged during assembly, when this happens the procedure has to be started over from the beginning. The current assembly procedure is very time consuming and lengthy for the employees. Our task was to …
… In addition, frost, poorly planned drainage systems, bad excavation and damage caused by harvesting operations can decrease the condition of the ditch. The pace of ditch deterioration is affected by peat thickness, water content in soil, peat humification, type of soil, rate of …
… the number of dead trees and soil moisture was foundindicating higher risk for damages on wet soils than on dry soils.? Risk for mortality after thinning increases in stands thinned at larger dominant height,stands with high thinning grade and wide strip-roads.? No clear …
… environmental interests are seeking food produced with as little environmental damage as possible. At the same time they want the food to be healthy, simple to prepare and taste good. An increasing number of people wish to reduce their intake of traditional dairy products, meat …
… have shown potential benefits to include more even wood flow and reduced road damage. The greatest benefits are found to be during periods of low bearing capacity such as spring thaw. No previous studies have examined geographical variations in the potential benefit of …
results 9-19 years after stand establishment
… to other site preparation on stand stem density, growth parameters and tree damages for Scots pine (Pinus sylvestris L.) after direct seeding and planting. The study also attempts to simulate growth until first thinning. Regeneration cost per hectare and tree was also evaluated …
