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167 Uppsatser om Regeneration felling - Sida 8 av 12
Implementering av miljöledningssystem i skogsbruket : en fallstudie hos Stora Enso Skog AB
Environmental management systems are a way of systematizing and streamlining an organization's environmental efforts. Within its EMS the organization determines it´s environmental policy and various environmental objectives. In order to achieve their environmental objectives the organization produces action plans that describe how they will work towards the objectives. Stora Enso Skog AB´s districts have been assigned to produce action plans for the company´s environmental objective of 90 % approved everyday nature consideration in final felling and any targets included within this objective. The purpose of this study was to investigate how the districts work with these action plans and how this could be improved.
Enkätundersökning hos skogsägare inom SCA Skog Norrbottens Förvaltningsområde
This report has been done in collaboration with SCA Skog, Norrbottens Forest Management Area. The purpose of the survey is to try to find out what the forest owners who either live in Norrbottens Forest Management area or outside but has their forest holdings in the administrative area has the vision of SCA Forest and their forest services offered by the administration. But also to find out the presences of other timber buying players who procures timber in the administrative area. This study seeks to determine if there are deficiencies that may need changes or improvements to the prevailing conditions in Norrbottens management area.
The literature study is about how to design a questionnaire based on what you want to know and what to consider in order to eliminate the problem of constructing a questionnaire.
A questionnaire was sent to 400 randomly selected forest owners who have their forest holdings within SCA Forest Norrbotten Management Area. And of the 400, it was 181 respondents with 39 women and 138 men.
Ekonomiska konsekvenser för skogsbruket vid avsättning av mark för viltvårds- och jaktändamål : en fallstudie på Svenska Jägareförbundets fastighet Öster Malma
The value of game for hunting from a social economic viewpoint is an interesting topic
that is currently being investigated in a Swedish research program. The amount of
damages that the game stocks cause to the forestry is, and has been in focus for a longer
period of time. Something that I saw as missing was an investigation of how much an
active game keeping measure might cost in lost incomes for forestry in terms of reduced
acreage for forest production.
This question was the foundation for this investigation, which purpose is to give
interested persons with decent knowledge of forestry an example of how cost estimation
for forestry resembling the example that is studied can look like.
The measures that has been taken is a felling of forest in different ages on both sides of
a forest dirt road to create increased asset of forage for the game, and at the same time
give hunters that have their post along the dirt road a better chance of seeing passing
animals early and increasing the possibility to shoot good shots. The area, which is a
part of The Swedish Association for Hunting and Wildlife Management estate Öster
Malma, is also used as an example for guests who wish to learn more about managing
ungulates. These guests have now got the opportunity to get information on how big the
costs are for the measures that have been taken.
The main conclusions of this work is that changed timber prices and foremost a change
of interest rate makes big differences on the result of the calculations.
Taktisk planering med geografisk hänsyn : fallstudie med Heureka PlanVis på SCA Skogs distrikt Liden
SCA is the largest private owned forest owner in Sweden, with an ownership of 2 million hectares of productive forestland. To manage the planning of such large areas and to fit the traditional organization structure of a Swedish forest company, the planning approach is subdivided into three stages; strategic, tactical and operational.
The strategic part, based on a statistic sample of stands, returns a harvest level estimate which should then be implemented at actual sites in the tactical part. This procedure can lead to incompatible solutions as the strategic solution is not necessarily possible to translate into actual sites in the tactical plan. The geographic aspect is important in tactical planning due to the large costs for moving equipment and maintenance of a large number of forest roads.
Marknaden för skogsvårdstjänster : en undersökning bland privata markägare inom en region i Värmland
This work broadly illuminates the conditions for increasing the commissions of forestry services within the whole, or parts of, the western regions of Stora Enso?s operating area. Through a questionnaire, a survey was made examining whether the owners of the forests themselves do the forestry on their woodlands. This foremost concerns the pre-commercial thinning, but also planting and soil scarification. The survey also shows who are buying the most part of their forestry services and who are carrying it out themselves.
Det gör ont när stockar spricker!
The aim of this study was to provide SCA Forest Norrbotten District with material to assist in their work towards decreasing the frequency of bucking splits in their saw timber logs. SCA Forest supplies the Munksund sawmill with pine timber. Periodically the sawmill experiences problems related to bucking splits in their logs.
The purpose of this study was to find an available method to measure the occurrence of splits directly on incoming timber. The ambition was also to gain some knowledge about possible variations between different logging crews in terms of split frequency. If possible, this information could be used to investigate if certain crews produced more splits than others, and thereby making it possible to provide feedback to the logging machine operators.
The study consisted of two major parts, a literature review, and a practical sawmill study.
Skogsägarenas inställning till markberedning i västra Värmland
According to a press release from the Swedish forest agency in May 2014, western Värmland has the worst regenerations of forest result in the whole of Sweden. The scarification frequency is low in the area. AB Hilmer Andersson want´s to know if the private forest owners want to scarify more than is done today. Good regeneration is important for private forest owners so they can have a long term forest management and economics of their forests.
This academic study is done as an opinion poll. The purpose of the study is to see how big the interest of scarification among the private forest owner is.
Sådd av tallfrön med vattenryggsäck : en laboratoriestudie
Föryngring av skog är en nödvändig, men kostsam åtgärd och därför är det eftersträvansvärt att hitta en föryngringsmetod som är både kostnadseffektiv och ger en bra föryngring. Ett sätt att få en billigare föryngringsåtgärd är att använda frösådd. Vid en lyckad sådd gör det stora plantuppslaget att plantorna får bra förutsättningar för god kvalitet. Dessa plantor får dessutom bättre rotutveckling och stabilitet än planterade plantor. Användningen av skogssådd är dock begränsad av bl.a.
Skogspolitik i Sverige
For a long time the Swedish forests were used by the landowner?s mainly for providing wood to the household itself. The wood was not, to a greater extent, considered a product to be sold. During the 1800s the industrial era led to a demanding need for wood in the industry and thus the use of forest, forest production kicked off. The forest production was not regulated by law, which led to a differentiated forest production over the whole country without consideration of re-growth.
Itrakonazol till häst : en farmakokinetisk möjlighet?
Itraconazole is a third generation azol, a fungicide which acts by inhibiting ergerosterol synthesis in the fungal cell membrane, and thereby disturbing fungal regeneration. It has proven to be less toxic, to have a broader spectrum of activity and to be more potent than its predecessor ketoconazole. Itraconazole is only available in therapheutics approved for human use. Pharmacokinetic studies has been performed in humans, dogs, cats and laboratory animals. Although itraconazole has been used tentatively with good effect against fungal infections in horses, no pharmacokinetic studies have yet been done.
Möjligheternas skog : utveckling av Teleborgsskogen som tätortsnära rekreationsskog i samarbete med närboende och aktörer
The Swedish forestry aims primarily maximize production and economical wins. However, especially urban forests have great qualities as space for recreation and children?s play, which means that other goals should lead the forests management. The Teleborg forest is a wooded area in Växjö, surrounded by urban dwellings, schools, nurseries etc. A great part of the forest was wind felled during the storm Gudrun in 2005 which changed the forest, earlier dominated by spruce, dramatically.
Bruka utan att förbruka - när andra intressen än ekonomin får styra
To have a forest area close to the city is of great importance for the city population?s well being. Children develop their motor skills, concentration and imagina-tion and the adults have a place to shake of the stress from work. Forest areas are used to exercise at, play in and to find a moment of peace and silence.
The urban forest and the old farming pastures at Markussonvallen and Per-Isakssonvallen already has natural assets worth to preserve and a great potential to create more. The goal is to develop a forest with a variation of tree species and ground vegetation that will appeal to the human senses and different animal species such as birds, insects etc.
Svartgran ? ett alternativ när allt ser mörkt ut? : en kartmodell för att visa lämpliga ståndorter för odling av svartgran
A common problem in forestry is plant death caused by frost. The risk of frost is highest on wind protected, flat or low-lying areas in the terrain. Here you often have regeneration problems with Norwegian spruce which is especially sensitive to spring frost. Swedish tree experiments have shown that the black spruce can be a suitable alternative on these areas, for example on moisture frost prone areas. The species originates from North America and its pioneer tree characteristics make it more frost hardy than Norwegian spruce.
Mobil kommunikation och högre tillgänglighet vid längre elavbrott : Exemplet stormen Dagmar och 4G-kommunikation inom smarta elnät
To be able to secure a safe and reliable power supply is becoming increasingly important since society depends on services and functions that need continuous power supply. The delivery rate in Swedish power supply is 99.98 % which insists on a high availability. During the past decade several storms has passed Sweden which resulted in large amount of tree felling leading to extended power outages. During these storms many socially critical activities, such as electric utility company Fortum, experienced disruption in mobile communication which affected the crisis management. This paper has investigated Swedish mobile operators? crisis management at Hi3G, Tele2 and TeliaSonera with a case study of the storm Dagmar that hit Sweden during December in 2011.
Naturlig föryngring efter markberedning med harv eller Bracke Planter i Småland
Studiens syfte var att jämföra Bracke Planter (BP) med harvning med avseende på andelen markberedd areal, uppkomsten av naturligt föryngrade stammar av olika trädslag per ha och huvudplantors medelhöjd tre år efter plantering. Jämförelserna mellan de två metoderna gjordes gruppvis med lika antal inventerade trakter för respektive metod, inventeringen gjordes i Småland under augusti månad 2012. För att fastställa andelen markberedd areal mättes arean på markberedningshögar och harvspår på årsfärska markberedningar (6 trakter). Förekomsten av naturlig föryngring och höjd på huvudstammar (ca 550 mätta plantor/metod) registrerades för totalt 16 trakter. Andelen markberedd areal var signifikant högre för harv än för BP, ca 33 % jämfört med 22 %.