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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Inventering av skyddsvärda ekar (Quercus robur) : En undersökning av omsättningen av skyddsvärda ekar i Kalmar kommun. / Inventory of protected oaks (Quercus robur) : A study of the turnover of protected oak trees in Kalmar Municipality.

Tapper, Hanna January 2020 (has links)
Skyddsvärda träd, speciellt ekar (Quercus spp.), är betydelsefulla både ur ett kulturellt och biologiskt perspektiv. Flera rödlistade arter som finns i Sverige är kopplade till gamla, grova ekar och tyvärr är detta ett habitat som har minskat i Sverige. Fragmentering av ekhabitat har påverkat den biologiska mångfalden hos ek-habitaten negativt. Förändrad markanvändning är en faktor som haft stor betydelse för ekbeståndens förekomst och åldersstruktur. Studier visar att beteshävd främjar utvecklingen av större ekar genom att hålla borta omgivande träd som annars skuggar ekarna. I den här studien har förekomsten av värdefulla ekar i Kalmar kommun återinventerats efter 10-20år. Syftet är att undersöka omsättningen av ekar, och vilka faktorer som påverkar rekryteringen av värdefulla ekar. Värdefulla ekar avser här stora träd med en diameter på minst 1 meter, och deras efterträdare, med en diameter på ³80 cm i brösthöjd. Resultatet visar en nettotillökningen av värdefulla ekar i Kalmar kommun under tidsperioden mellan inventeringarna. Sammanlagt påträffades 133 nya ekar. Av de totalt 222 ekar som noterats i den föregående inventeringen återfanns 215. Av de återfunna hade 24 ekar dött under perioden mellan inventeringarna. En analys av sambandet mellan ljuskonkurrens, mätt som krontäckning, och antalet döda träd visar att dödligheten av ekar ökade med en ökande täckningsgrad i trädskiktet, vilket stödjer att eken är en skuggkänslig art. Dock var ekarnas tillväxt, mätt som ökning av omkretsen, inte störst i de lägsta täckningsgraderna, vilket innebär att fler faktorer har betydelse för trädens tillväxtframgång. / Protected trees, especially oak trees (Quercus spp.), are important from a cultural and biological perspective. Several red listed species found in Sweden are linked to old oaks and unfortunately this is a habitat that has decreased in Sweden. Fragmentation of oak habitat has adversely affected the biodiversity of oak habitat. Changed land use is a factor that has had a major impact on the occurrence and age structure of oak stocks. Studies show that grazing promotes the development of larger oaks by keeping away surrounding trees that might otherwise shade the oaks. In this study, the occurrence of valuable oaks in Kalmar municipality was re-invented after 10-20 years. The purpose is to investigate the turnover of oaks, and what factors affect the recruitment of valuable oaks. Valuable oaks here refer to large trees with a diameter of at least 1 meter, and their successors, with a diameter of ³80 cm in chest height. The result shows a net increase in valuable oaks in the municipality of Kalmar during the time period between the inventories. A total of 133 new oaks were found. Of the total 222 oaks recorded in the previous inventory, 215 were found. Of the recovered, 24 oaks had died during the period between the inventories. An analysis of the relationship between light competition, measured as crown coverage, and the number of dead trees shows that the mortality of oaks increased with an increasing degree of coverage in the tree layer, which supports that the oak is a shade-sensitive species. However, the growth of the oaks, measured as an increase in the perimeter, was not greatest in the lowest coverage ratios, which means that several factors have a bearing on the tree's growth success.
2

Finns utarbetade riktlinjer för hur vi ska bevara de unika svenska naturmiljöerna i ett förändrat klimat? / Are there drafted guide-lines for the preservation of the unique Swedish natural environments in a changing climate?

Löf, Eva January 2016 (has links)
The aim of this study is to find out if there are regional/national strategies, and thus evaluate, how well prepared Sweden is to preserve the unique Swedish natural environments in view of the ongoing climate change. In this work the study is limited to comprise the preservation of protected areas in the Swedish forests. The data collection for the study was done by qualitative interviews to obtain data for the analysis template, where interviews were processed and indexed. The study reveals that the authorities have not come that far. More research is needed with reference to how our unique Swedish natural environments are affected by the changing climate in order to find relevant data for a strategy. In terms of strategy for the preservation of biodiversity, results indicate a slightly better outcome for the authorities.
3

Barnfridsbrott : Svårigheter i rättstillämpningen / Penal Provision on the violation of a Child's Integrity

Nejman, Filippa January 2022 (has links)
In July 2021 a new penal provision on violation of a child's integrity, was introduced in the Swedish legal system. The penalty provision is found in Chapter 4 of the Penal Code. It entails a special criminal responsibility for a person who commits a criminal act against a person close to them, when the act is witnessed by a child. Children who witness domestic violence or other criminal acts between parents or persons close to them are a particular vulnerable group. These children often lack criminal law 1 protection. The new provision on violation of a child's integrity has mostly been well received. The child who witnessed the criminal act will now be a plaintiff with the right to his own special legal representative. There will be a chance that the new provision will strengthen the child's right under the Convention on the Rights of the Child. This specifically concerns Article 12 the child's right to be heard. Even so there seems to be several difficulties with the provision in the law enforcement. This essay will explore some of these difficulties.

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