The background of this study is an article in the hunting magazine ?Svensk Jakt? where Karl Hedin claims that his sawmills has not noticed any significant moose damages in the timber. The purpose with the study is to find out the causes to the moose explosion and what it has led to in today?s forests. A questionnaire has been sent out to sawmills in the region Dalarna with the purpose of finding out if sawmills receive moose-damaged timber and what they think about how they foresee future development. There were two causes of the moose explosion, that had effects on the moose population. The first cause was that the moose hunters wanted to raise the moose population, and by raising the calf shooting and by saving the cows they succeeded. The second cause was changing methods in Swedish forestry.

The background of this study is an article in the hunting magazine ?Svensk Jakt? where Karl Hedin claims that his sawmills has not noticed any significant moose damages in the timber. The purpose with the study is to find out the causes to the moose explosion and what it has led to in today?s forests. A questionnaire has been sent out to sawmills in the region Dalarna with the purpose of finding out if sawmills receive moose-damaged timber and what they think about how they foresee future development. There were two causes of the moose explosion, that had effects on the moose population. The first cause was that the moose hunters wanted to raise the moose population, and by raising the calf shooting and by saving the cows they succeeded. The second cause was changing methods in Swedish forestry.

 Inse mitt värde och behåll mig en stund till är ett utforskande projekt i hållbar textildesign. Huvudfokuset i projektet är att utforska vilka möjliga designlösningar som kan ge produkter egenskapen av föränderlighet och på så vis möjliggöra en förlängning av deras livscykler. Detta undersöks utifrån ett eget formulerat förhållningssätt till hållbar design, genom praktiska experimentella undersökningar av olika material och föränderliga mönsterbilder. Detta kombinerat med att ge konsumenten en aktiv roll i förändring av en produkts utseende och funktion. Projektet resulterar i tre produktprototyper som på olika sätt gestaltar föränderlighet och det formulerade förhållningssättet.

The Bark from prehistory ? an osteological analysis on dog bones from the Stone Age settlements of Hemmor and Gullrum at Gotland and a theoretic study of the secular and sacred roles of the dog during the Neolithic.Dog bones from two Pitted Ware Culture (around 2500 BC) settlements, Hemmor in När parish and Gullrum in Näs parish/Havdhem parish, at southern Gotland, Sweden are analyzed. The analysis contains a study of age, withers height and size estimation as well as skeletal changes and pathologies. The attempt of the analysis is to highlight the secular and sacred role of the dog during the Neolithic at Gotland. The dog bones were collected during excavations in the years 1890 and 1903 and were found across the entire surfaces of the settlements.Although there were no specific dog breeds during the Stone Age, the dogs at Hemmor and Gullrum show a wide range of size (withers height spans from 39,74 cm to 56,47 cm) and may therefore have been used for different purposes depending on their size.

The background of this study is an article in the hunting magazine ?Svensk Jakt? where Karl Hedin claims that his sawmills has not noticed any significant moose damages in the timber. The purpose with the study is to find out the causes to the moose explosion and what it has led to in today?s forests. A questionnaire has been sent out to sawmills in the region Dalarna with the purpose of finding out if sawmills receive moose-damaged timber and what they think about how they foresee future development. There were two causes of the moose explosion, that had effects on the moose population. The first cause was that the moose hunters wanted to raise the moose population, and by raising the calf shooting and by saving the cows they succeeded. The second cause was changing methods in Swedish forestry.

The annual demands for forest fuels increases in Sweden. At present, large unutilized biomass resources is found in young, dense forests from which about five million oven-dry tonnes (ODt) (23 TWh) could annually be extracted as forest fuel. But harvesting small trees give high logging costs and new cost-efficient harvesting techniques are therefore required. The aim was to study the productivity of Vimek 608 BioCombi in forest fuel thinning of Lodgepole pine and to calculate the economy of the harvesting and estimate the thinning quality. The time study was performed in Åmarken in the county of Västerbotten.

Aska från mindre biobränsleeldade rostpannor har ofta ett högt innehåll av oförbränt organiskt material. Det försvårar återföring av askan till skogsmark. Återföring förutsätter att askan kan härdas till en fast produkt, men härdningen blir ofullständig om askans innehåll av oförbränt material är för stort. I detta arbete har därför två rostpannor studerats med målet att identifiera åtgärder för att minska halten oförbränt organiskt kol i askan. Dessa var panna 1 på fjärrvärmecentralen Notnäs i Torsby och panna 1 på Sannaverket i KristinehamnAskanalyser visade att askan från panna 1 på Notnäs i dagsläget är av god kvalitet men attpanna 1 på Sannaverket är i behov av åtgärder för att sänka halten oförbränt.

There are two species of voles that cause damage in Swedish fruit production: the water vole (Arvicola terrestris) and the field vole (Microtus agrestis). Both species make the most damage during the winter season. The water vole makes subterranean burrows and cause serious damage by gnawing on the tree roots. The field vole seldom makes burrows and gnaws the Bark at the base of the tree trunk. In recent years there have been several reports about increasing vole damage.

The aim of this study was to develop a simple model for calculating stock costs for bio fuel at Billerud Karlsborg and subsequently recommending a suitable stock level of bio fuel. The stock components considered in the model are GROT (branches and tops), Bark, dry wood chips, raw wood chips from Barking and sawdust. The calculations are based on a probability distribution of historical deviations between ordered and delivered volumes. The model presents two different ways to manage the supply in case of irregular deliveries. The first way is to stock enough volume to cover the deviations and the second way is to compensate with a quick purchase from the spot market (at extra high purchase prices).

 Inse mitt värde och behåll mig en stund till är ett utforskande projekt i hållbar textildesign. Huvudfokuset i projektet är att utforska vilka möjliga designlösningar som kan ge produkter egenskapen av föränderlighet och på så vis möjliggöra en förlängning av deras livscykler. Detta undersöks utifrån ett eget formulerat förhållningssätt till hållbar design, genom praktiska experimentella undersökningar av olika material och föränderliga mönsterbilder. Detta kombinerat med att ge konsumenten en aktiv roll i förändring av en produkts utseende och funktion. Projektet resulterar i tre produktprototyper som på olika sätt gestaltar föränderlighet och det formulerade förhållningssättet.

Denna rapport syftar att undersöka de risker och konsekvenser som uppstår för samhället och närområdet vid en brand i yttre bränslehantering hos Smurfit Kappa Kraftliner i Piteå. Yttre bränsle i denna rapport syftar på biobränsle, Bark, flis, returpapper och massaved. Vid en brand bildas en mängd olika ämnen och partiklar, styrt av temperatur och vilket material som brinner. Om dessa brandgaser sprids över bebodda områden är det av stor vikt att veta omfattningen av de risker och eventuella skador som lokalbefolkningen utsätts för. De rådande väderförhållanden är en stor faktor för spridningens omfattning.Ett företag i Sverige är enligt lag skyldigt att ha ett adekvat säkerhetsarbete och själva kunna hantera de risker som de själva medför.

Pappersbruket BillerudKorsnäs AB är idag en av Sveriges ledande tillverkare och leverantör av förpackningspapper, kartong samt wellråvaror. Företaget har en framtida målsättning att i tillverkningsprocessen bli självförsörjande på energi och detta genom en intern förbränning av biobränsle i form av Bark och flis i sodapannor. Sodapannan utgör på så sätt fabrikens energidistributionssystem. Vid den kontinuerliga förbränningen av svartlut följer stoft och slagg med rökgaserna och fastnar på sodapannans värmeytor som består av rörpanel. Detta är problematiskt då slagg på värmeytorna försämrar värmeupptagningen och gör den ineffektiv.

This report is a B.Sc. Forestry thesis work at the school for Forest Management, SLU. The work was an assignment from the forest owners? association Mellanskog. The aim of the work where to investigate the economical result of removing undergrowth trees before first thinning, and a follow-up of the contractors and their compliance with Mellanskog standards. This thesis work was divided in three parts: The first was to find a relation between the net volume from the first thinning and the cost of cleaning undergrowth trees. Secondly there was a follow-up in the field, to investigate whether the contractors have done the undergrowth cleaning according to Mellanskog?s directives.

This report is a B.Sc. Forestry thesis work at the school for Forest Management, SLU. The work was an assignment from the forest owners? association Mellanskog. The aim of the work where to investigate the economical result of removing undergrowth trees before first thinning, and a follow-up of the contractors and their compliance with Mellanskog standards. This thesis work was divided in three parts: The first was to find a relation between the net volume from the first thinning and the cost of cleaning undergrowth trees. Secondly there was a follow-up in the field, to investigate whether the contractors have done the undergrowth cleaning according to Mellanskog?s directives.

As demand for renewable energy is increasing rapidly, the market for biomass pellets is expected to continue to grow in the near future. Most of the new raw materials that are discussed for pellet production have one thing in common; the production costs will increase compared to using traditional raw materials such as sawdust and planer shavings. The aim of this thesis is to investigate to what degree increased use of new raw materials for pellet production will affect the general pellet prices in Sweden and to survey what plans Swedish pellet producers have concerning new raw materials. To investigate the raw material situation of the Swedish pellet producers an industry survey was performed. Literature studies were also made on previous research in the subject field. Calculations of the production costs for pellets were done for the raw materials sawdust, wet sawmill chips and energy wood respectively. New raw materials are already used by the large-scale pellet producers in Sweden.