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139 Uppsatser om Storm - Sida 3 av 10
Stormskador i lärk och gran : en jämförelse efter stormen Gudrun
The Storm Gudrun January 8-9 2005 felled about 70 millions cubic metres forest in southern Sweden. The majority of the wind damaged forest was spruce (Picea abies). In order to decrease the risk of wind damages in the future other trees species are of interest for forestry in southern Sweden.
The purpose of this master thesis was to study if larch were more wind tolerant than spruce. The method was to compare larch, Japanese larch (Larix kaempferi Lamb.), European larch (L.
Beståndsutveckling i stormskadade granbestånd
The Storm Gudrun in 2005 led to massive windthow damage in forests in southern Sweden.
Since then there has been a growing interest in factors influencing wind damage in above all
Norway spruce (Picea Abies) stands. Although many other interesting areas still need to be
examined. In 2005 there where a lot of stands that suffered different degrees of damage, a lot of
these stands weren?t cut, but instead left to grow. The future development of these stands is
uncertain and the guidelines are unclear.
Rättfärdigt krig i de nya krigens era -en normativ studie om spektakelkrigets rättfärdighet
Det har inom krigföringen skett en utveckling mot riskfri krigsföring där västliga stater, och då främst USA och Storbritannien är de främsta representanterna. Denna typ av krig är ett resultat av en kombination av (1) minskad inhemsk tolerans för förluster i krig och (2) en teknologisk utveckling inom militären. Denna typ av krigföring har kommit att kallas spektakelkrig och uppvisar en oförmåga att leva upp till kriterierna för att ett krig skall vara rättfärdigt; spektakelkriget har dels svårigheter att startas med en rättfärdig orsak (Jus ad Bellum) och dels att sedan föras rättfärdigt (Jus in Bello) i linje med vad teorin om rättfärdiga krig stipulerar. Jag har funnit bevis för detta genom att undersöka tre sentida, västliga operationer som samtliga har resulterat i krig och där samtliga fallerar på en eller flera av kriterierna för rättfärdiga krig. Operationerna är operation Desert Storm, operation Allied Force, operation Enduring Freedom..
Legitimitet och nekande tvångsmakt i Operation Desert Storm
When are aerial bombing strategies effective in coercing target states? According to the recent research debate there is a consensus that denial strategies may be an effective instrument for coercing states to change their politics. This study is based on Belkin?s theory which argues that the effectiveness of denial strategies may depend in part on the domestic legitimacy of the target states? regimes. From a political standpoint, aerial denial effectiveness can be considered more likely to coerce when political leaders of target states lack domestic legitimacy rather than when they are legitimate. The purpose of this study is to contribute an explanation of a condition where denial strategies are more likely to succeed.
Privata skogsägares benägenhet till röjning i Gudrunområdet : En kvalitativ intervjustudie
The purpose of this study was to examine how small-scale private forest ownersmake decisions regarding pre-commercial thinning. In 2015 it is ten years agosince the Storm Gudrun hit the southern parts of Sweden and now large areas arein need of pre-commercial thinning. This study is built upon qualitativeinterviews with seven small-scale private forest owners with forest properties inthe county Kronoberg. The respondents were chosen by the modelSKOGSÄGARPROFILENTM (forest owner profile).The results of the interviews showed that five categories: ownership, the StormGudrun´s impact, silviculture, forestry contacts and driving force was important.How will their purpose and aim affect the pre-commercial thinning? Personalinterests, and expectations of the next generation to take over, are purposes thisstudy has found.
Kustnära ekosystem som skydd mot naturkatastrofer : en litteraturstudie från ett riskhanteringsperspektiv
Research suggests that society's vulnerability to natural disasters along coasts could increase as a result of climate change, which is likely to lead to elevated sea levels and possibly an increase in the occurance of meteorological phenomena such as Storms and tropical cyclones. Following the Indian Ocean tsunami disaster in 2004 and Hurricane Katrina in 2005, both of which received considerable media attention, empirical data has indicated that coastal vegetation might be able to protect and reduce damages to coastal communities during tsunami events and tropical cyclones.The aim of the essay has been to study the function of coastal ecosystems as protection against tsunami waves and Storms from a risk management perspective, meaning that I have, through an overview of scientific articles, compiled current research on how coastal ecosystems can attenuate Storm surges and tsunami waves, and analysed how this knowledge can be put into practice in coastal communities from a risk management perspective, i.e. if coastal ecosystems are a viable risk reduction measure, are practically applicable, and if so, how they could be applied.There is empirical evidence suggesting that coastal ecosystems, particularly mangroves, can reduce the strength of a tsunami wave, but full scientific consensus on this issue has not yet been reached. With regard to protection against Storm surges, there is extensive scientific evidence that coastal vegetation can mitigate damages and reduce the height of a Storm surge, although the wave has to traverse several kilometres inland through thick vegetation for the protection to be effective. A synthesis in the form of a figure regarding the many physical factors that influence wave development through coastal ecosystems has been created in an attempt to simplify and explain the phenomenon.The conservation and restoration of coastal ecosystems can be justified from a risk management perspective, but planting new forest belts for the purpose of disaster mitigation is quite unrealistic and can rarely be sustainable, since, for protection to be effective, the forest belt must extend several kilometres inland from the coast, and would thus likely prove difficult to implement along coastal societies..
Vindskador vid stickväg i 1:a och 2:a gallring i Boxholm, Östergötland : i stormen Pers fotspår
Wind damages next to strip roads in 1st and 2nd thinning in Boxholm, Östergötland
Anneli Fransson, SLU, inst f sydsvensk skogsvetenskap, Examensarbete no 108
Wind damage is something we are all familiar with since the Storms Gudrun (2005) and Per (2007). Research about strip roads and wind damage is very limited. It is commonly known that the trees next to the strip roads more often fall whit heavy winds, and the purpose of this thesis was to verify this statement. Data was collected from first- and second thinnings at Boxholms Skogar AB, Östergötland. In first thinnings data was collected from both spruce and pine stands and second thinnings only data from spruce stands was collected.
Känslighets- och osäkerhetsanalys av parametrar och indata i dagvatten- och recipientmodellen StormTac
Three methods of sensitivity and unceartainty analysis have been applied to the operative Stormwater- and recipient model StormTac. The study area is the watershed of lake Flaten in the municipality Salem. StormTac?s submodels for Stormwater, pollutant transport and the recipient are cosidired. In the sensitivity assessment, the model parametres and inputs were varied one at a time by a constant percentage according to the ?one at a time? (OAAT) method and the response of the outputs were calculated.
Förekomst & kostnad av kapsprickor i stormaskadad skog
The aim for this study where to investigate the frequency of cutting cracks in saw timber harvested in the Storm-damaged forests in regions where the Storms Hilde and Ivar hit. The idea for this work came from one of the region?s biggest actors, SCA Skog and Jämtlands district. The purpose where to find out how big proportion of the saw timber that contains cutting cracks, their financial cost in lost wood value and also give advice and suggestions on how to work against the frequency of cutting cracks.
For the field-study some guidelines where used to make sure that the samples were taken under the same conditions, they were:
? The field-study must be performed under harvesting of Storm-felled forest, which are horizontal/inclined trunks.
? The averaged sized tree will make it possible to harvest saw timber.
? The trunks can?t be root cut.
A methodology called in Swedish ?Trissmetoden? was used because it is the most frequent used methodology in earlier performed studies and the only one that can be used I field.
Under the field-study data were collected from 570 saw timber logs, 30 logs from each one of the tested harvesters.
Klimatfaktorers inverkan på granbarkborrens svärmningsintensitet i Medelpad
The spruce bark beetle (Ips typographhus) is one of the 25 000 species of insects in Sweden, an insect of great economic importance because it can alone terminate forest of high value. During the past decade, insights of climate change received with increasing attention. If the future brings a milder climate in the north and therefore a longer growing season, one would think that it would only affect the forestry to the better? Yet in recent time, outbreaks after Storm felling seems to occur more frequently. The Spruce bark beetle ruins millions of cubic meter of Norway spruce (Picea abies) in Sweden alone, with more frequent Storm felling and a larger amount of wind thrown threes in the forests there will also be room for an advancing reproduction.
Dödslyckningar i semikolon : Konkretistiska grepp i dikter av Erik Beckman, Åke Hodell och Bengt Emil Johnson
Strax efter milleniumskiftet har ett flertal svenska filmer gjorts som är influerade av populärgenrer som förhållandevis skiljer sig från vad filmpubliken i Sverige är van vid, däribland science fiction och skräck. Tre svenska filmer gjorda under 00-talet: Storm, Frostbiten och Kenny Begins, har valts ut för att se hur de förhåller sig till äldre och mer välbekanta konventioner i svensk film men också konventioner hos de mer internationellt spridda genrer som analysexemplen tillhör. .
Stormskador i stickvägsgallrade bestånd i sydvästra Sverige :
A Storm in January 2005 felled 75 millions cubic metres of forest in South Sweden. Previous studies of wind damage in thinned stands indicated the importance of early thinnings. The risks of wind throw increased by increasing age and height of the stands. Previous studies also indicated increasing risk of wind throw along the strip roads. The aim of the present study was to investigate wind damage in Norway spruce stands in South Sweden in relation to time of the first thinning and different pattern of strip roads (width, length and direction).
Hur olika skogsägarkategorier har försett sig med underlag för beslut och åtgärder efter stormen Gudrun : en jämförelse av medlemmar och icke-medlemmar, åbor och utbor samt kvinnor och män
During the 8th and 9th of January 2005 a devastating Storm named Gudrun entered the south of Sweden and a big part of the forest owners got their forests damaged. The study objective was to investigate on which basis and how the affected forest owners made their managment decisions immediately after the Storm and if there are any differences between different categories of forest owners.
- Members ? non members in a forest owner association (FOA)
- Resident owners ? non resident owners
- Female and male forest owner
The study is based on a questionnaire survey with the purpose to examine the most important counsellor and information channels of the forest owners. A total of 450 forest owners participated in the survey.
Results show that all categories of forest owners prefer professional counselling rather than personal counselling.
Fortsatt gran eller självföryngrad björk efter stormfällning? : en ekonomisk analys
The southern part of Sweden, Skåne, is frequently exposed to Storms causing great damage to Norway spruce (Picea abies L. Karst.) stands. A Storm during the winter 1999/2000 raised the attention of the problem. A lot of forest owners got large areas of spruce stands wind thrown during this Storm. Can naturally regenerated birch (Betula sp.) be an alternative on these wind-exposed sites? This was the main question I was facing when discussilig the problems with Esben Möller Madsen, Söderåsens forest district.
The aim of this master thesis was to present an economic analysis of Norway spruce versus
birch.
Överlevnad och tillväxt för Douglasgran i södra Sverige
After the two big hurricanes called ?Gudrun? (2005) and ?Per? (2007) in the south of Sweden, some landowners planted Douglas fir instead of the traditional Norway spruce and Scots pine. They did it for different reasons. Some of them spreading their "risk", others because they wanted better growth or to obtain a more Storm-resistant stand and trees more protected against rot. In this study, survival and growth were examined on Douglas fir in 21 different locations, owned by private landowners in southern Sweden.