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1518 Uppsatser om Urban soil - Sida 18 av 102
Kan markfuktighetskartor användas för att hitta skogsmark med hög bonitet? : ett gis-baserat försök med dtw-index och laserskannad övre höjd
The depth-to-water-index (DTW-index) is derived from digital elevation models (DEM) to map soil wetness, in terms of distance from soil surface to the ground water table. The aim of this GIS based study was to investigate the existence of a relationship between DTW-index and forest site productivity (SP). The belief of such an assumed relationship was based on knowledge that the ground water level is related to site properties that can either promote or impede tree growth.
Data primarily comprised rasters of the Krycklan catchment in northern Sweden and depicted DTW-index and a laser scanned vegetation height. The 100th height percentile of each pixel in the vegetation raster was assumed to mirror the top-height, letting it act as a relative measure of SP within a delineated area of equal stand age.
Stadens offentliga rum ur ett socialt hållbarhetsperspektiv - Jubileumsparken, ett offentligt rum för unga?
The public spaces of the city from a social sustainability perspective, Jubileumsparken, a public space for the young, aims to see how public spaces can be open and accessible to all young people in the community. New public spaces can be created and formed by urban planning. A public space that is undergoing considerable development is Jubileumsparken, which is situated in Gothenburg. This area constitutes the case study for this thesis. Due to the commercialization in the neo-liberal society of today, there is a risk that economically weak people, such as the young, the unemployed or students, can?t take part of all public spaces.
Lokalt omhändertagande av dagvatten i Västerås - Möjligheter till ökad användning i befintliga innerstadsområden : Local disposal of storm water i Västerås - possibilities for increased use in downtown areas
The construction of buildings and paved surfaces changes the natural water balance.Precipitation generates surface runoff and storm water instead of infiltrating into the soil.Storm water has come to be considered as a major source of pollution in lakes and streams inthe vicinity of urban areas. Reduction of pollutants in storm water is a key action in order toprotect sensitive recipients and maintain high water quality. Storm water is traditionallytransported by storm sewers to the nearest recipient. In recent years the approach to stormwater management has changed; storm water should primarily be disposed of on site, throughlocal disposal of storm water, LOD. LOD is created by a combination of the function ofseveral smaller local facilities and the general sewer system.
Våtmarker i urbana miljöer : växtgestaltning och planering
The practice of landscape architectural involves forming the space in our cities and suburbs, as well as the landscape surrounding. The need of exploiting green environment leads up to, among other issues, flood problem during heavy rain and overfed water environments. The problem is partially caused by the shortage of knowledge, how the environment is responding of the innovations made by the city- urban planning and how to get sustainability.
Research and knowledge how to take care of our environment, in a natural way, is increasing. The object of the thesis is to propose control and balance in urban wetlands, and discuss the difference a plant design can do.
The thesis deals with discourses in the field of landscape architecture, biological diversity, dam construction, limnology, planting design and management, pollution of the environment and urban design practice.
Fältdiagnostik - ett verktyg för hållbar odling : Resultat och tillämpning av fältdiagnostiska metoder i planeringsstadiet av en ny trädgårdsblåbärsodling
I det här arbetet undersöks fältdiagnostiska metoder och användbarheten av dess resultat i planeringsstadiet av en ny trädgårdsblåbärsodling. Syftet är att fastställa vilken information som kan erhållas från en jordanalys, penetrometerundersökning och en jordmånsbeskrivning samt vilka rekommendationer från dessa undersökningar som vidare kan härledas till planeringen av en ny trädgårdsblåbärsodling. Som exempel och fallstudie används en bit åkermark i Ockelbo där provmätningarna ägde rum.Resultatet visar att fältundersökningar i kombination med en jordanalys gjord på laboratorium är ett bra verktyg för att utreda en jords grundläggande förutsättningar. Jordanalysen visar hur näringsinnehållet ser ut i jorden samt vilka eventuella näringsbrister eller näringsöverskott som finns. Penetrometerundersökningen informerar om eventuella markpackningar, som utgör eventuella hinder för t.ex.
Texturbestämning genom fält-, pipett- och hydrometermetoder :
Texture is an important soil property and accurate particle size analysis of soil texture is therefore crucial. There are a number of well-established and newly developed methods available for determining soil texture. In order to compare the results of these methods, the differences between them must be determined.
The difficulties, problems and differences regarding texture class determination were examined through a study performed on forest soil samples. The study compared different methods (pipette, hydrometer and field methods) and two types of dispersing agents (sodium pyrophosphate and sodium hexametaphosphate (calgon)) commonly used for particle size analysis.
Från konsument till medproducent : förekomsten och utvecklingen av Community Supported Agriculture i Sverige
Community Supported Agriculture (CSA) is an unconventional model of agriculture expected to contribute to a more sustainable food supply and a sustainable landscape; the development of rural areas; a stronger relationship between producer and consumer and a healthier diet. This study, with a focus on food production and the link between the producer and consumer, describes the origin and current development of CSA in Sweden, including the prerequisites for CSA in a Swedish context. Organizations and entrepreneurs working with CSA and related projects are identified and interviewed. The notion of CSA in Sweden is still in its infancy, but a rapidly growing interest currently can be detected. The fact that the identified CSAs are found in different Swedish regions with variations in degree of urbanization and intensity of agriculture indicates that the prerequisites are there for the concept to grow, both in rural as well as urban areas.
Ett objekt : om arkitekturen i ett föremål för handling
This thesis is covering my design of an architectural object for the use in a pedagogical setting. The purpose is to create contextual premises for students, making possible the testing of designs, involving plants suitable for the urban environment. Hence, the main features in the object design is suggestive to the urban outdoor rooms - rooms that are formed amongst the city facades.
The thesis is also about the design process set out from a technical reality, based on camera imagery. To a large extent, the thesis consists of reflections concerning the object's function towards pedagogy, perception and materials. Furthermore, the object claims to be a hybrid between architecture and landscape architecture.
growforgold.org : a design proposal for creating productive green space in cities
The aim of our master thesis is first and foremost to win the competition One Prize
- mowing to Growing: Reinventing the American Lawn, announced in USA by the organization Terreform 1, the first of December 2009. Apart from winning the competition we have also tried to reach a deeper understanding of food production today and its future possibilities. Our ambition to present a winning design proposal has to a large extent decided the structure of the entire thesis.
Our completed and submitted design proposal - growforgold.org - is a way of addressing urban food production in a creative way, keeping the sovereignty of
the individual in mind. Instead of presenting a place-specific design solution our proposal aims to create incentives and possibilities for urban farming to take place
anywhere and anytime. Our submission to the competition represents both a tool and a platform which, put in practice, could make landscape architecture happen through the hands of the individual.
GULLBERGSKAJ ? PARADIS? En exposé över drömmarnas kaj
The purpose of this graduate thesis is to illustrate what could be theeffects of urban renewal carried out in a too hasty manner, the pointbeing that there could be features which have (yet) not been identifiedand therefore are lost if the planning of the city is not given theadequate amount of time and resources.Through a case study located at the wharf of Gullberg (Gullbergskaj)the significance of urban fringes and areas without too strict of aplanning are highlighted. Some guidelines to successful and consideratecity development are somewhat suggested.The survey is mainly based on two types of sources: contemporaryphotography and interviews with a number of people who are allresidents or tenants at the Gullbergskaj. Their testimonies regardingGullbergskaj and their use of this particular environment are used to drawconclusions of the qualities, which are not the typical cultural-historicalqualities but rather a quality defined by the user (of the quay), held by thissection of the Göta älv shoreline.This thesis is also concerned with the potential impact on the qualities ofGullbergskaj, was it to be the object of city renewal.The results of the study are compared to debating articles published in thenewspaper Göteborgs-Posten for a wider understanding of Gothenburg as atrademark, and the public opinion regarding the city planning related toCentrala älvstaden..
"Gå, Franciskus, och bygg upp min kyrka" : Om tiggarkonventens betydelse för skapandet av staden belyst genom urbaniseringen i södra Halland
This essay deals with the relationship between the mendicant movement and the urbanization during the thirteenth century. The aim has been to explore the significance of the Dominicansand the Franciscans for the creation of an urban landscape. This was made through the study of the urbanization process in southern Halland focusing on the town of Halmstad where the friars were established. The importance of the mendicants was also studied through their absence in the towns of Laholm and Falkenberg. To achieve this investigation in a contextual perspective material from different areas was used such as archaeology, history and history of science and ideas.
En heterotopologisk analys av den kulturella infrastrukturen i Göteborg: Rio Rio-båten på kollisionskurs med ett stadsplaneringsmaskineri på drift.
This essays overarching aim is to contribute to the theoretical discussion of transformation processes that are shaping the urban landscapes and further to problematize contemporary planning discourses in Sweden. Drawing on the concept of Foucault?s heterotopia and actor-network theory for spatial analysis, the paper seeks to analyze the complex urban landscape transformation process as an emergent property of human and non-human actor-networks seeking to transform and order space. With the district of Rosenlund in Gothenburg as a starting point, this thesis intends to examine how the cultural infrastructure - used by the residents and visitors of the city - are related to the city's planning and development processes. The case study is based on a boat (Rio Rio) in Rosenlund canal that is defined as a cultural infrastructure.
Stora stadsparkers liv och död : betydelsen av och framtiden för stora stadsparker
Behovet och betydelsen av stora stadsparker tycks ha fallit i glömska i samband med förtätning av städer. Planering av nya stora stadsparker tycks numera inte stå på agendan. Få arkitekter, stadsplanerare eller landskapsarkitekter lyfter fram värdet av nya stora stadsparker. Syftet med denna uppsats är att undersöka betydelsen av nya och befintliga stora stadsparker i framtidens städer, samt om nya stora stadsparker planeras. Genom intervjuer med arkitekter, stadsplanerare och landskapsarkitekter i Stockholm, Malmö, Köpenhamn och Berlin, belyser denna uppsats yrkesverksammas syn på framtiden för, och betydelsen av, befintliga och nya stora stadsparker.
Kortsiktig fosforeffekt av avloppsslam : krukförsök i växthus där järn-, aluminium- respektive kalkfällt slam använts som fosforgödselmedel
The short term effect of phosphorus in sewage sludge was investigated to establish howmuch of this a farmer can grant him- or herself, if using sewage sludge as a phosphorusfertilizer. Possible differences in plant availability between sludge phosphorus precipitatedby iron, aluminum or calcium integrations were studied in a sandy soil at two pH levels.The sludges were analyzed using pot and incubation trials. As the intention was to investigategrowth limitation due to phosphorus deficiency, a soil with low phosphorus supplywas chosen as well as a low phosphorus application rate. Sludge corresponding to 12kg phosphorus per hectare was applied. Treatments fertilized by sludge were compared totreatments where 0, 6 and 12 kg phosphorus per hectare from mineral fertilizer was applied.Every treatment was replicated six times.
Varierad kaliumgödsling i potatis : en fältstudie i Hedemora
Variation in tuber quality within a single field was one of the motives for a pilot study
in Halland, in south-western Sweden conducted during 2002. Quality problems in potatoes have been increasing due to the aggregation of several small fields with different land use history into larger farm units, which are heterogeneous in soil properties and fertility. The study in Halland indicated that both the uniformity and the mean size of tubers may increase from site-specific K fertilization, whereas total yields may be unaffected. The results from this pilot-study with site-specific fertilization showed that tubers reached a more uniform quality and gave a more uniform mean size, while the total yield wasn't affected at all.
Site-specific K-fertilization has been applied for some years in Halland with good
results. The aim of this study was to test this technique in another potato growing
area.