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2675 Uppsatser om Forest industry - Sida 19 av 179
Att återställa en naturlig ordning : skogshistoria och restaureringsbränning i Långsidbergets naturreservat
During the late 1800s fire suppression became increasingly effective in northern Sweden which led to decreased areas of fire-disturbed woodland and successive changes in the structure of forests. In the long run this can pose a serious threat to fire-dependent and fire-favored species. Today some fire-prone forest reserves are burned as a nature conservation act. Often partial cuttings are made before burning, with somewhat different motives. The purpose of the study in Långsidberget nature reserve was to give a general picture of forest history and its affect on today?s forest condition, and to show how partial cuttings affect burning conditions and results.
Långsidberget is located close to areas that were colonized during the Middle Ages.
Forestry supply chains : preparing for the unpredictable
Forestry supply chains are a significant part of the Swedish economy. These supply chains are highly susceptible to storms damage. In late 2013 Sweden was hit by multiple storms. This leads to the possibility to research how supply chains react to the shocks that storms cause. The aim of this thesis is to research the costs that storms increase, the actions that are taken within the forestry supply chain, as well as possible benefactors from storms.
This thesis bases on previous work on supply chain mapping and cost theories.
Introduktion av buskskikt i ungskogar
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 forest dynamics are compared with four reference stands to detect factors, and principals for introduction of shrubs in young stands. In these stands four different ways of introduction were found. In one trees and shrubs were planted together at the same time. Shrubs spontaneous spread under a canopy of mature forest, in another.
Tillvaratagande av GROT i skärgårdsnära miljö :
The main aim of this study was to investigate and compare different methods for the extraction of forest fuel from environments close to an archipelago. The study was based on relevant literature and published reports as well as personal communications.
Forestry has traditionally been characterized by intense efforts to rationalize and mechanize the cutting technique used for timber and pulpwood. In line with the increasing importance of forestry, more concentrated efforts can be expected in the area of techniques and methods, especially for the above-mentioned product lines.
In Sweden, forestry is of major importance and the Swedish economy and standard of living have mainly been created based on the revenues generated from it. Thus, it is vital that Swedish forests are harvested in an efficient and responsible manner.
The demand for biofuel is growing and today accounts for 15% of total Swedish energy production, a share that will probably increase.
This study is based on three research questions, which are described under the heading of Aim. The results reveal that the most profitable method for handling forest fuel is the traditional one, which is also the most commonly used method in southern Sweden, namely the stockpiling of logs in a clearing by means of forwarders followed by splintering at the place from where they will be distributed.
Today, the high cost of barge transport required for the extraction of forest fuel in an archipelago environment renders such operations unprofitable.
Skånes landskap - ett industriminne? : en betraktelse med utgångspunkt i Findus ärtodling
This paper argues that the food industry in general and the one taking place in Scania in particular, are disregarded in the official management of industrial preservation carried out in Sweden today. Despite the articulated ambition of a cultural heritage that as many as possible could identify with, the practice tend to create an industrial heritage based on stereotype ideas about the landscape in Sweden and the characteristics of industry. The way the open land of Scania differs from the traditional image of the appearance of Sweden, is used as one possible way to explain why the food industries of Scania are overseen in the management of industrial heritage. It is also argued that the high number of female employees might bee a reason why the food industries in general are given low priority in the practice of cultural heritage. By putting the Findus pea industry and the cultivated landscape that provides the factory with primary products against the official criteria for industrial memories, it is examined what values for preservation the food industry contain..
Utvärdering av svensk vindkraft : Skillnaden mellan skogs- och traditionella placeringar
During the last years commercial Wind Power Turbines (WPT) has become larger regardingto the generator sizes and hub heights. Available hub heights around 100 meters is nowcommon, which has led to profitability for WPT located in forests where there normally are tolow wind speeds. The current knowledgement regarding turbulence and the variation in thewind profile for the outcome of the power production for the WPT in forests is limited.In this Master of Science thesis an investigation concerning forest located wind power plantshas been made. The purpose has been to investigate if plants located in forest perform lesscompared to wind power turbines located at more common locations.The analyses are based on statically material for determining the availability,production/generator size, production/hub height, production/swept area and how thetopography affect the production results.The analyses show that the variation in production result for WPT located in forest comparedto turbines located at other locations is small. The availability is high and the productionresults are good..
Omfattningen av icke avverkade områdeni samband med slutavverkning :
This final thesis is performed on commission of Torsby forestry administration, Stora Enso Skog. Stora Enso Skog is one of the major forestry companies of Sweden. The main business area is located in and around the region of Bergslagen.
During the last decade the practice of forest management has rapidly changed due to a new forest legislation. The new law has resulted in that the production goal is equal to the environmental goal within forestry.
Gestaltningsförslag för Bölekläppen : utveckling av upplevelsevärden i ett friluftsområde i Umeå stads utkant
Taking a qualitative approach, this research investigates different theories and methods for creating parks that people will cherish and visit during their daily life. It also takes on the task to understand how principles of developing recreational values in a small forest is affected by the addition of a new element to the landscape, i.e. a major highway. Data was collected through the combination of focused literature review and study trips. This provided a framework which in turn was applied to the subject of the study, i.e.
Svamparnas roller i svenska barrskogsekosystem : hur ser kunskapsläget ut hos några olika grupper människor?
Fungi are everywhere around us and recently, there has been
an increased interest in their role and importance in the forest.
The fungi have several strategies to acquire energy and nutrition; one example is a mutual symbiosis with trees and plants - another being dissolving organic materials.
Attempts have been made to better understand the circulation of nutrition in coniferous forests, and how fungi cooperate.
Trees and plants have adapted with mycorrhizae and are now interdependent which is important to consider in forestry.
A great number of fungi depend on dead wood and old trees to set fruiting bodies and spread further. These fungi also create environments for other species, such as birds and insects.
The vegetation of a forest is determined by a series of factors; tree species, how old the forest is, soil type, as well as the ability of the fungal spores to spread and establish. Furthermore, in determining vegetation, the fungi?s ability to compete in the soil matters. These factors are nearly unexplored.
Researching fungi knowledge and interest, a survey was distributed to five groups of people.
The groups included forest owners, high school teachers, high school students, senior citizens, and a fifth group - ?o he ? - consisting of people of mixed ages and backgrounds.
En jämförelse avseende beståndsgående-och stickvägsgående gallringsmaskiner
The purpose of this report is to investigate and compare the difference between stand-thinning machines and strip-road thinning machines, and how they affect the stand on behalf of future growth, theoretical economic result, wind impact, snow pressure and density of stand.
The investigation is regarding the first commercial thinning of pine stands, after pre-commercial thinning that was well conducted.
The investigation area was located near Katrineholm, Sweden. The measurements that were measured were strength of thinning and amounts of wind throws, snow-breaks and hauling damages.
The results that emerged, was that thinning with strip-road machines had a significantly higher strength of thinning over all, as compared with the stand- thinning machines (45 percent versus 30 percent).
Comparisons between wind-throws, snow-breaks and hauling damages of the stand could not establish any significant differences between the two methods that were investigated.
Conclusions, over all, were that if forest owners want to have more timber volume left for second thinning and final cut of the stand, the forest owners should choose the method with stand-thinning machines. From the point of view of gentle treatment of the stand and ground damages the choice should be the same.
However, the method with strip-road thinning machines is the most common and accessible method in Sweden. Most likely it is the most economical way to manage the stand for forest owners in present time.
If the method with stand-thinning machines is becoming more common in Sweden, it is suggested for forest owners to consider the stand-thinning method as a candidate for treatment due to economic aspects..
Habitat use and ranging behaviour of GPS tracked juvenile golden eagles (Aquila chrysaetos)
Throughout its wide distribution in the northern hemisphere, the golden eagle occurs in a diverse range of environments, e.g., mountainous, forest and open areas. The literature on juvenile golden eagles is limited, and this study provides further knowledge on habitat use and ranging behaviour during the post-fledging period in boreal Sweden. A total of 14 golden eagle juveniles were tagged with GPS transmitters during 2010 and 2011, and nine could be followed during the entire post-fledging period from fledging until migration.
The juveniles fledged at the end of July and beginning of August and initiated migration during October and beginning of November. The length of the post-fledging period, until migration started, ranged from 49 to 97 days. During this period, the juveniles? distance from their natal nest and their GPS height increased with time as their flying abilities developed.
Swedish SME Financing - Evidence from the Game Industry
The objective of this thesis is to examine the capital structure of Swedish small and medium sized enterprises (SMEs). Accounting data from Swedish game developers, combined with the result from a survey, is used to examine their financial conditions and capital structure decisions. We find that non-debt tax shield, firm size, growth opportunities and age are, to various extents, the determinants of capital structure in the game industry, while effective tax rate and asset structure have marginal effects. Our study also implicates that most of the existing capital structure theories can explain SMEs leverage decisions to some extent; however, some adaptation is needed to fit these theories into the SME context. Additionally, we find the existence of a financial gap in the game industry which might need efforts from both demand side and supply side to eliminate..
FSC certifiering vid BioEnergi i Luleå AB: livskraftigt bruk
av världens skogar
Bakgrunden till detta arbete är att Bioenergi i Luleå AB måste tillmötesgå kundkraven för att behålla sina marknadsandelar och ha möjlighet att utöka dessa. På senare tid har de stora kunderna börjat efterfråga bränslepellets som är certifierad enligt Forest Stewardship Council, FSC. Examensarbetets syfte var att hjälpa Bioenergi med framtagandet av en Forest Stewardship Council Chain of Custody certification. I den inledande kartläggningen användes i huvudsak intervjuer och observationer för att studera de anställda och tillverkningen. För att identifiera aktiviteter och brister i Bioenergis system studerades även interndokumentation och relevant litteratur.
Är den tryckta bokens död författarens bröd? : En studie i hur förlagens och författarnas relationer förändras till följd av introduktionen av e-boken.
The name of the thesis is?Istheprintedbook?sdeaththeauthorsbread??Astudyinhowthepublishinghouses?andtheauthors?relationshipschangeduetotheintroductionofthee--?book?Thee--?book,whichisadigitalcopyoftheprintedbook,hasbeenonthemarketforovertwodecades.However,itisnotuntilnowthatchangesarehappeningwithintheindustry,whichaffectsthedifferentactors.Amazonhasforexamplelaunchedane--?readerbythenameKindleonthemarketandApplehaslaunchedasurfpadbythenameiPad,bothwhichyouareabletoreade--?bookson.Thetechnologicalchangesthatarehappeningaffecttheactorswithinthebookindustryaswellasthestructureoftheindustry.Theresearchquestionofthisthesisis?owdothepublishinghouses?andtheauthors?relationshipswithinthebookindustrychangeduetotheintroductionofthee--?book??Actor--?networktheoryisusedtoinvestigatethis.Thetheoryincludesbothhumanandnon--?humanactors,whichtogethercancreateanetwork.Theactorswithinthenetworkconnectthemselvestoeachotherandtherebyformthenetwork.Thepurposeofthisthesisistocreateanunderstandingforhowactorsandtheirrelationshipswithinanestablishedindustrystructureareaffectedbydigitalisation.Toachievethis,semi--?structuredinterviewswereconductedwithpublishinghousesandauthors.Theboomofthee--?bookinlargepartdependsuponthetechnicaldevelopmentthathasoccurredandwhichhasintroducedsmartphones,e--?readers,surfpadsetceteraonthemarket.Moreactorswillariseinthebookindustryduetothedigitalisation,whichinturnwillaffecttheexistingrelationshipsofthepublishinghousesandtheauthors.Thepublishinghouseswillkeeptheirroleinthenetworksasakeyplayer,butcomeintocontactwithmoreactors.Theauthorsaregiventhechancetoself--?publishtheirbooksase--?books,whichmakethemcomeintocontactwithmoreactorsaswell.Asmoreactorsarise,thestructurewithintheindustrybecomesrelaxed.Hence,thepublishinghousesneedtoenrolthenewactorsinorderforthemtokeeptheirpositioninthenetwork..
Captureteorin : Regleringar och konsten att fånga politiska beslut i den demokratiska processen tillämpad på den svenska läkemedelsmarknaden
The Capturetheory wants to give an alternative explanation for the need of regulation. From this point if view the government does not have enough information to make an optimal regulation. There is a possibility for different interest groups to take advantage of the political arena by rent- seeking behaviour. An industry may be willing to be regulated to protect itself from competition. The objective of this paper is to account for the pros and cons of the theory of regulatory capture and also if it can be applied to the Swedish market of pharmaceuticals.