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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

Anpassning av kvartersparker i tempererade klimat för nyttjande året runt : - En fallstudie av Stenebergsparken i Gävle

Borgqvist, Isabelle, Bäck, Martin January 2023 (has links)
Urbana parker är en central del i människors välbefinnande. De är platser för rekreation, aktiviteter och sociala utbyten. Forskning visar att undervinterhalvåret minskar användandet av parker i tempererade klimat vilket kan medföra negativa hälsoeffekter för människor. Att parker står obrukade delar av året är negativt både utifrån ett socialt- och resursperspektiv. Syftet med följande arbete är att undersöka hur kvartersparker kan anpassas för att öka användningen året runt. Målet är sedan att presentera en visualisering av förbättringsförslaget för Stenebergsparken i Gävle. En variation av metoder användes för att genomföra arbetet, där samtliga grundar sig i tidigare vetenskapliga publikationer. Platsanalys, webbenkät, intervjuer och en solstudie är de metoder som användes för att besvara studiens frågeställningar. Utifrån resultaten av dessa gestaltades ett förbättringsförslag somvisualiserades med renderingar och en video. Under arbetets gång framkom tre koncept som anpassning av parker i tempererade klimat bör utgå ifrån vid förändring, mikroklimat, aktivitet och utformning. Mikroklimat innebär att skapa behagliga klimat som erbjuder vistelse i olika typer av önskade väderförhållanden. Exempelvis möjligheten till sol- och skuggytor samt skydd mot nederbörd och vind. Utifrån aktivitet behöver parker erbjuda en variation av sysselsättningar för att kunna tillgodose flera behov. Denna aktivering innebär att en större mängd människor lockas till platsen. Utformning handlar om att tillgängliggöra ytor samt placera aktiviteter utifrån olika mikroklimat i parker. För att validera förbättringsförslaget presenterades det till två objektiva sakkunniga inom arkitektur och landskapsarkitektur. Följande studie visar på att vid utformning av kvartersparker i tempererade klimat behöver de tre koncepten mikroklimat, aktivitet och utformning tas i beaktning. Omplanerare, kommuner och politiker ser till dessa tre koncept ger de människor förutsättningar för att bruka parker under hela året i större utsträckning. / Urban parks are important components of people’s well-being and everyday life. These parks are a place for recreation, activities and social encounters.Previous research show that during the colder seasons the use of parks in temperate climates decreases, which in turn can have a negative outcome on people’s general health. The fact that urban parks are unused for a considerable part of the year is negative from both a social- and resource perspective. Therefore, the aim of this study is to investigate how neighborhood parks in temperate climates can be adapted to increase use all year round. Following the objective to present a visualization of the presented proposal for the case study of Stenebergsparken in Gävle. A combination of different methods was used and all methods were based on previous research. Site analysis, web survey, interviews and a solar study are the selected methods used to help answer the study's research questions. Throughout the process three concepts regarding adjustments of parks in temperate climates emerged, these were microclimate, activity and design. These concepts are essential to be taken in consideration during the planning process to create lively parks year around. Microclimates means to create pleasant environmentsthat enables visits in different types of desired weather conditions. This can be achieved through creating places that provide both sun and shade or creation of protection against precipitation. For activity parks need to offer a variety ofactivities to satisfy multiple interests. In turn, this attracts a greater number of visitors to the place. The design of a park involves the availability of the park and placement of activity surfaces regarding microclimate aspects. To validate the proposed improvements renderings together with a checklist was presented to two unbiased experts in architecture and landscape architecture.The produced proposal in this case study, regarding seasonal adjustment of neighborhood parks in tempered climates, is based upon the three emerging concepts microclimate, activity and design. If planners, municipalities and politicians look to these three concepts, they enable people to use parks throughout the year to a greater extent.
2

Hibernation Sites and Activity of Bats During Winter

Nelms, Jacqueline January 2023 (has links)
In the temperate region, bats have evolved the strategy of hibernation to survive the harsh winter. During hibernation, bats enter the vulnerable state of torpor that requires specific environmental conditions to function optimally. Bats are known to use caves and anthropogenic structures as hibernation sites. However, the majority of the bat population cannot be accounted for when such structures are surveyed. There is evidence that bats use other natural structures as hibernation sites. To examine bat’s choices of hibernation sites and activity, acoustic monitoring of bats in south-west Sweden was performed during the winter of 2022-2023. Bat activity was measured in areas with potential hibernation sites in natural structures (rock outcrops), as well as inside and outside of known hibernation sites (anthropogenic structures). The level of activity and the ambient temperature were tested for a possible correlation. Additionally, data from 2006-2022 of surveys of bats in hibernation sites were examined for a possible relationship with outside ambient temperature. Bats were found to be active during the winter inside the known sites of hibernation. There was also activity recorded outside one of the known hibernation sites, but no bat activity was found in the areas of potential hibernation sites. No significant correlation was shown between bat activity and outside temperature, nor between number of bats inside a hibernation site and outside temperature. Further research is needed to develop the knowledge about bats’ hibernation behavior which in turn will aid more effective conservation of temperate bat species.

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