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1518 Uppsatser om Urban soil - Sida 27 av 102
Påverkas mosippa (Pulsatilla vernalis) negativt av igenväxning?
Pulsatilla vernalis is one of several endangered plant species that benefit from wildfires and small scale disturbance events that repel competing vegetation and create open patches in the vegetation cover. Previous studies argue that Pulsatilla vernalis is decreasing in numbers due to vegetation changes associated with the decrease in wildfires, forest grazing and changes in forest management. In this study, 17 populations of P. vernalis were inventoried in order to examine if soil and/or vegetation structures affect the population structure of P. vernalis (i.e.
Urban Vindkraft : ett nytt element i bebyggd miljö?
This paper aims to explore the phenomenon urban wind energy, its visual effect on built environment and the factors that affect the opinion towards new elements in the city. A place study of the city Gävle serves as a complement to the theoretical part of the paper. The theoretical discussion opens with an account for the technical and economical conditions of urban wind energy. It presents the technical basics, different types of turbines and a discussion occurring wind related techniques in built environment. Today, the knowledge of how the wind moves and acts in the rural landscape is quite good.
Kommunens arbete med hållbarhet och mobilitet
Syftet med denna studie är att undersöka hur Karlskrona kommun skulle
betygsättas utifrån Sustainable Urban Mobility Plan verktyget ADVANCE. Studien
utgår framförallt ifrån forskningsförhållningssättet fallstudier, som
framförallt har genomförts med hjälp av metoderna litteraturstudier samt
ADVANCE. Litteraturstudierna har framförallt bestått av de strategier
Karlskrona kommun har antagit angående dess mobilitetsplanering och ADVANCE har
använts som ett verktyg för
att kunna upptäcka de positiva och negativa effekter dessa strategier har för
kommunen.
Utifrån denna fallstudie, samt genom diskussioner med Lars Olofsson
(trafiknämnden, Karlskrona kommun), analyseras de resultat som verktyget
ADVANCE visar upp, i dessa analyser ges även exempel på lösningar som
Karlskrona kommun skulle kunna
använda sig av för att kunna förbättra sin nuvarande
mobilitetsstrategi.
Att styra bilanvändning mot en hållbar utveckling. Om geografiska livsvillkor kontra offentliga ingrepps betydelse för bilanvändning.
Car usage is determined by several facts, e.g. living conditions determined by geographical matters. There is a political will to control car usage with different kinds of incentives since car usage generates environmental problems. This essay analyses the differences between car usage in urban areas as opposed to thinly populated areas in Sweden and their significance on governmental incentives. By using statistics differences in car ownership during ten years between thinly populated areas, areas in the countryside and urban areas is studied.
Ett grönt möte mellan eklandskapet och en ny stadsdel i Linköping :
The purpose of this essay is to analyze and show possibilities how a city can grow into the scenery of a oak dominated landscape and how this encounter can add values to the city.
The city in focus is Linköping, a city that is approaching one of Sweden?s largest oak dominated cultural landscapes. To this landscape high ecological and cultural values are connected. The recreational values are also of importance especially because of its urban location also because the city is mainly surrounded by flat agricultural land.
Miljöteknisk undersökning enligt MIFO : en studie på fastigheten Bodsjölandet 1:14 avseende den nedlagda tjärfabriken i Grötingen
During 40 years of industrial production, from the end of the 1890?s until the end of 1930?s, coal and wood distillation products were manufactured in AB Carbo?s tar factory along the River Gimån in Grötingen, in the county of Jämtland, Sweden. In accordance with the Swedish Environmental Protection Agency?s Methods for Inventories of contaminated sites, MIFO, the site in Grötingen has been identified as a potentially contaminated site. In order to determine whether toxic substances pose a threat to human health and ecological systems in the area, there was a need to investigate the presence of contaminants, their levels and potential for migration.
Avfallsdirektivets påverkan på efterbehandling av förorenad mark
The purpose of this report is to increase the awareness about the problem that occur when the waste hierarchy is applied to management of contaminated land. The work with remediation of contaminated land in Sweden is part of the efforts towards reaching the national environmental objectives. Therefore a subsidiary aim is to analyze how this influences the prospects of reaching the objectives. The work consists of two parts; a case study and a comparative literature study that focus on England, the Netherlands and Sweden. The case study is intended to provide a practical perspective through a comparison of the climate impact from two methods.
Den ena boplatsvallen är den andra lik? : Miljöarkeologisk intra-site studie av boplatsvallar vid Lillsjön, Anundsjö sn., Ångermanland
Boplatsvallar, often translated as semi-subterranean settlements, is an ancient monument with a diffuse definition. Defined as ?embankments that partially or completely surround a often lowered/dug down surface- this category of ancient monuments is also made up of a former category which traditionally was interpreted as winter settlements from the late Stone age in Sweden. This view of the ancient monuments carried over, to a certain extent, to this new definition. Should this be the case, that this category of ancient monuments are remains of winter settlements, used recurringly over an extended period of time, then they should exhibit similar signals in regards to the distribution of the anthropogenically altered soil chemical and soil physical properties at the sites.The area around Lillsjön, Anundsjö parish in Ångermanland, have four boplatsvallar located separately in the regional area.
Slitundersökning för jordbearbetning och sådd :
In this study we try to focus on the costs for wear parts on different type of soil tillage machines and at Väderstad Rapid drilling machine. We have studied some of the leading types of cultivators and disk harrows. Among the cultivators we have investigated Väderstad Cultus, Dalbo Dinkomax, Horsch Tiger and Terrano. At disk harrow we have looked at Amazone Catros and Väderstad Carrier.
We have made more detailed study on costs for wear parts, working depth, driving speed and diesel consumption.
Festivalturismens inverkan på destination och attraktion : En studie kring Storsjöyrans påverkan på Östersund
This essay will examine in which way festival tourism can affect the physical location of a festival and to operationalize this we implemented a case study of the music festival Storsjöyran. Storsjöyran is a Swedish music festival held annually in the city of Östersund and since the festival, with the accompanying festival week, attract up to 300 000 visitors annually, we wanted to see what impact the festival contributed to from a development perspective of the destination. The method for gathering data has consisted of both qualitative and quantitative approaches and the data was collected via interviews and questionnaires. We also presented various theories about festival tourism and destination development, as well as previous research on urban festivals. The conclusion is that Storsjöyran contributes to a variety of factors which can help Östersund to a destination development and increased tourism.
Gemenskap i kris: En studie av socialt kapital och krisberedskap i G?teborg
This thesis explores how the city of Gothenburg integrates and use social capital, defined through factors such as trust and cooperative networks, in its crisis preparedness strategies and how this can enhance the city's collective resilience. The study aims to contribute to the understanding of how social capital can be leveraged to strengthen crisis management and resilience in urban environments. The research analyzes existing quantitative data from the SOM-Institute regarding residents perceptions and self-reported preparedness actions and reviews Gothenburg's official civil defense plan for 2024?2027. By examining various aspects of social capital, including levels of trust and cooperative networks across different city districts and age groups, the analysis focuses on how social bonds and community contexts are considered in planning for handling and recovering from potential crises.
Användning av barrträd i urban miljö : möjligheter och begränsningar
Lövträd har traditionsenligt valts ut för att berika stadens grönska och barrträden har ännu inte fått samma förtroende i stadsmiljöns gator och torg. Vi var nyfikna på att undersöka om 70-talets överanvändning av barrträd och dess negativa klang dröjer sig kvar och påverkar dagens val av stadsträd. Eller kan det vara barrträdens bristande egenskaper att hantera stress som begränsar dess framfart i urbana sammanhang?
Att utöka dendrofloran med en varierad sammansättning av barrträd ger ett flertal fördelar som grönska året runt och ett stabilare ekosystem. Undersökningen är avgränsad till sydvästra Skåne och behandlar arterna utifrån de geografiskt rådande förhållandena.
Modellering av reflektans från ett sockerbetsbestånd med hjälp av en strålningsmodell
The Multispectral Canopy Reflectance Model (MCRM) by Kuusk (1995) has beenused to simulate the reflectance of a sugarbeet canopy. The simulated reflectancevalues show high absorptance in the VIS area, compared to field measurements, andhigh reflectance values in the NIR area. The errors may be due to overestimation ofclorophyll content in the sugarbeet leaves and scattered light during fieldmeasurements. The estimation of the clorophyll content where carried out using thePROSPECT-model by Jacquemoud & Baret (1990).During the vegetation period, the state of the canopy moves towards a closed canopy,with sparse vegetation in spring. The MCRM-model was used to perform a ?spring?simulation, which was compared to the original simulation.
Stadens struktur och pendlande miljöpåverkan : En kvantitativ studie om betydelsen av stadens fysiska och sociala struktur för miljöpåverkan i vardagsresor
Sättet på vilket vi tar oss från en plats till en annan i staden har effekter på den lokala miljön samt i förlängningen även på det globala klimatet. För att våra system för persontransport ska gynna en hållbar samhällsutveckling står vardagliga resemönster, såsom pendlande till arbete och skola, för den stora utmaningen. Beroende på var i staden en individ är bosatt har denna följaktligen olika grad av tillgänglighet till kollektiva infrastrukturnätverk såsom sträckan till närmaste hållplats för tunnelbana. Möjligheterna att använda mindre miljöbelastande transportmedel skiljer sig därmed åt bland stadsbefolkningen vilket gör miljöpåverkan i vardagsresor relevant att studera ur ett sociologiskt perspektiv. Denna kandidatuppsats behandlar miljöpåverkan i vardagsresor i förhållande till individens fysiska och sociala plats i den urbana strukturen.För att undersöka detta används ett redan befintligt intervjumaterial från studien ?Ett miljöanpassat Stockholm? som innefattar 633 intervjupersoner och utfördes i forskningsprogrammet Hushåll och Urbana Strukturer i Uthålliga Städer.
När tippen blir toppen -En studie om soptippars omvandling : Hur blir de en tillgång och för vem?
A high degree of urbanization with growing cities has raised a need of transforming closed landfill sites for giving them new uses. This study aims to investigate how old landfills can be re-used, what has lead to the new uses, and for what and whom the transformed site will be an asset. The method used is a case study of four different landfills in Stockholm county, Sweden. The case study is analyzed in the light of former studies regarding re-use of degraded urban areas, so called brownfields, and in particular studies and reports of landfill re-use. The result indicates that old landfill sites is identified as an area with possible values if transformed properly, in the case study area especially as green structure and recreation areas.