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1391 Uppsatser om Urban forestry - Sida 59 av 93
Skattningar i gallringsskog med hjälp av flygburen laserskanning : beräkningar med massaslutenhet
This master?s thesis is a remote sensing study of an area-based method used to detect forest in need of thinning by use of laser data and field samples. Only pine-dominated forest has been included in the study and height limits were set to match empirical restrictions. The study area was in the municipality of Älvsbyn (Latitude 65° 40´ N, Longitude 21° 00´ E), in northern Sweden.The Swedish authority Lantmäteriet is currently laser scanning most parts of Sweden, providing new opportunities and applications. The primary aim of the national laser scanning is to create a new elevation model, useful in consequence analysis of climate changes.
Analys av data från flyglaserscanning :
In forestry there are always needs of forest data to make good strategic decisions of different actions and economic winning. Usually this data gets from field-estimations made by forest workers with expensive costs and sometimes unsatisfied quality.
StoraEnso Skog is a great forest company in Sweden and they have part of the responsibility of the forest own by Bergvik Skog. Bergvik Skog is owner of 1, 9 million hectares productive forest land. Both Bergvik and StoraEnso have great interest in new inventory techniques to get the important forest data.
The company Foran Remote Sensing offers the opportunity with airborne laserscanning of forest and forest land. Foran got the mission of Bergvik and StoraEnso to laser scan Bergviks possession in Älvdalen, Dalarna.
Land från hav från land : en reflekterande gestaltningsprocess
Där hav möter land kan det ske spännande saker. Eller rättare sagt, där hav möter land borde det ske spännande saker. Med den inställningen gick jag in i ett projekt som syftar till att lyfta fram ett sådant vattennära område och utsätta det för undersökning och komma med förslag på
förändring. Tanken är att synliggöra gestaltningsprocessen med allt vad det innebär: sökandet efter form, funktion och mening. Platsen för arbetet är en del av Visby hamn och det är idag en plats utan riktig identitet.
Svenska hushålls vedarbete : en fallstudie i Umeåregionen
In Sweden there are 354 000 private individuals owning forest. Of these forest owners there are at least two thirds that are self-employed, which means that about 215 000 forest owners conduct some kind of work in their own forest. Those numbers do not refer to firewood production, but every year 7.3 million piled cubic meters of firewood are used for heating Swedish households. This implies that many households are also producing firewood.
The objective of this study was to assess and analyse the small-scale firewood production in the Umeå-region in terms of persons engaged in the work, equipment used, produced volumes and share of forest-owning households involved in these activities. According to results from a questionnaire, the average firewood producing person is a man between 40-60 years old.
"Vad är det för fel på mig? Varför kan inte jag simma som alla andra?? En studie med kvalitativa samtalsintervjuer om hur det känns att gå i skolan och inte kunna simma
Abstract:Perennials in public areas have during the latest decades been more and more popular. This group of plants has become a more accepted komponent when creating pleasant public places, and people begin to see the functional aspects. Perennials do also give a colour- and senceexperience in a more detailed way than can be achieved with only trees and shrubs. One of the ojects of this essay is to give more examples of motives for using perennials in urban areas.Having in mind the increasing use of perennials, you can expect a growing need for better understading of how to create successfull perennial plantings. In spite of the increasing interest it is hard to find any written information in this subject.
Politiskt organisationsbyggande - Vilken betydelse har samrådsprocessen haft i arbetet med att bygga upp en ny organisation för kollektivtrafiken i Värmland? : En fallstudie av arbetet med trafikförsörjningsprogrammet i Värmland
On the first of January 2012, a new public authority was formed in Värmland, due to a new legislation on public transport. The first task for the new public authority was to produce a plan for the development of public transport. In order to do so, it had to execute an extensive consultation process about the long-term goals of public transport. The purpose of the thesis is to investigate how a public authority can use a consultation process as a means to clarify accountability and produce unified goals. To answer that, I have done a case study about how the new regional public authority in Värmland for public transport has acted in the process of writing a plan for the development of public transport.
Kvalitet på vägdata : inventering av skogsbilvägars standard samt jämförelser med lokal bedömning och SNVDB.
During 2006 SNVDB (the national road data base for forestry) is being introduced to Holmen Skog. This data base contains all information about Holmen Skogs road systems. The information will then be used in different kinds of optimisation models which only produce correct and reliable results if the input data are of the adequate quality.
Today there are reasons to believe that road data is of various qualities. The forest roads are often in a bad condition and have to be improved before a planned harvest. The cost of maintenance and construction of new roads is a large part of the total harvesting cost.
Den amerikanska synen på Strid i bebyggelse : En komparativ studie mellan Military Operations on Urbanized Terrain och Urban Operations med utgångspunkt i de grundläggande förmågorna verkan, skydd & rörlighet
Den amerikanska armén har under lång tid haft doktriner som behandlat strid i bebyggelse medolika typer av motståndare, från sovjetiska divisioner som anfaller in i Västtyskland tillupprorsbekämpning i Mellanöstern och Afrika. Uppsatsen handlar om hur den amerikanska taktiskasynen på strid i bebyggelse har utvecklats från 1979 till 2003.Syftet med den här uppsatsen är att skapa en större förståelse för den taktiska utvecklingen somskett kopplat mot de grundläggande förmågorna verkan, skydd & rörlighet.En kvalitativ textanalys har använts som metod för att analysera de aktuella doktrinerna. Teorinutgår ifrån Doktrin för markoperationer och i synnerhet ifrån de grundläggande förmågorna verkan,skydd & rörlighet.Resultatet visar att användningen av dessa förmågor utvecklas med hänsyn till förväntadmotståndare och civilbefolkning. Utvecklingen av verkan går mot mer kvalitativa medel ochmetoder, motståndarens rörlighet har förändrats och så har också hans vilja att strida i bebyggelse.Användningen av assymmetriska metoder för att uppnå skydd är en ny metod som uppkommit.Värdering av den terrängen är däremot något som inte har förändrats..
Analys av linjetaxering i samband med gallringsinventering med avseende på kvalitet, tillförlitlighet och framtida utformning
Modern forest owners are very familiar with forest management and forest economics. Therefore they have high demands for quality in forest operations. Guarantee of quality in the shape of self-checking activities is an important tool to guarantee a well managed forestry operation. To meet the forest owners? demands on guarantee of quality and the entrepreneurs wish of an easy method for self-checking, the forest owners association, Södra skogsägarna, has developed a new method for thinning inventory.
The purpose of this study is to evaluate the method that is used for self-checking and to find ways to develop and improve of the method.
The data has been collected by inventory in a number of stands with circle-area survey and with strip survey, which is method that is used for self-checking.
The results show that the strip survey does not diverge more than ±10 % in measuring values of basal area, number of stems, roads share, thinning quotient, outtake of basal area and total volume compared to circle-area survey.
Metaanalys av vargforskningen i Sverige/Norgemellan åren 2000-2014
Vargens återkomst har gett upphov till olika attitydsyttringar, boende i vargområden är i regel mernegativa till vargen än de som bor utanför dessa områden. Genom att mäta vilka attityder som finnstill varg kan forskare ge incitament till makthavare om hur vargförvaltningen upplevs avallmänheten.Den här studien är en kartläggning av forskningsläget under åren 2000 ? 2014 rörande attityder tillvarg i Sverige och Norge. De variabler/grupper av individer som forskare inom området använderför att mäta vem som har vilken attityd är jägare, djurägare, boende på landsbygd utanför vargområde, boende på landsbygd i vargområde, boende i stad med flera. Vi finner att studierna tar uppteorierna social representation, centrum och periferi och NIMBY (Not In My Backyard).
The usage of parks : a study of three parks in Uppsala
In today?s world urbanisation is an on-going process, cities are growing and becoming denser, and places for recreation gain value. Therefore, urban parks are much appreciated by people living in cities. When the first public parks where planned, their main function was to increase health, hygiene, education and social
life. In the middle of 19th century the meaning of public parks to people?s wellbeing gained attention and parks were planned to provide space for lively activities.
This paper focuses on parks? activities.
Vägval: kortast, snabbasteller hälsosammast : En försöksmodell i GIS för ruttoptimering och beräknad inhalation av luftföroreningar för cykelrutter
Cycling is one of the most sustainable transport modes available and it is widely promoted inmany urban areas. The health benefits from cycling has shown to be substantial, includingdecreased risks of diseases related to overweight and enhancing brain capacity. However, inurban areas cyclists can temporaly be exposed to high levels of air pollution, resulting inhealth risks as opposed to health benefits.The objective of this thesis is to develop a rasterbased test model in GIS that estimates theinhaled dose of air pollution for cyclists based on relative particle concentration in differenttransportation micro-environments. The method used is a least-cost path approach,calculating three different routes; shortest, fastest and least dose for four different trips withinSödermalm, Stockholm.The results show that the inhaled particle dose can be greatly reduced, 39% - 58% for three ofthe routes, by choosing the least dose route. One of the most interesting findings is thesubstantial increase of dose when high levels of particles are combined with uphill cycling.The conclusion for the thesis is that a raster-GIS model can be very useful for estimating doseof different air pollution particles and chemicals along cycling routes.
Framgångsfaktorer för rundvirkesåkerier i Mellansverige :
Generally, the economic health of Swedish roundwood truck transport companies has not been good. Profitability is important for maintaining the stability in the transport business, which is a condition for long-term transport planning in the forestry sector.
The scope of this study was to identify probable factors influencing the profitability of roundwood truck transport companies and quantify the influence of these factors on economic results.
The study was carried out at a major roundwood truck transport organisation in mid-Sweden and was implemented in four steps. In the first step economic results from the haulage contractors were collected and a random sample was taken from accounted net margin for the account year 2005/2006. In the second step hauliers were interviewed to identify probable success factors. At the third step data for identified factors were gathered through a questionnaire.
Precommercial thinning stumps´susceptibility to Heterobasidion spp : a comparison between high and low Norway spruce and birch stumps : a measuring of the efficacy of Phlebiopsis gigantea stump treatment
Each year, Heterobasidion spp. is a major cause of economic losses to forestry in the northernhemisphere, including Sweden. New results indicate that pre?commercial thinnings could be at riskfor Heterobasidion spp. infections.
Utvärdering av datorprogram för användning vid dagvattenutredningar
The main object of this diploma work thesis is about how computer programs can bea tool to use for work on stormwater investigations. The advantage of using acomputer program compared with calculations made by hand is evaluated anddiscussed. The computer programs that have been used for studies and a sequence oftesting of the possibilities are Autodesks Storm and Sanitary Analysis and DHIs MikeUrban.Focus on sustainable development now permeates the building industry. As a resultstormwater investigations have been conducted in an increasing extent the recentyears. Stormwater is water produced due to precipitation, such as rain and snowmelt.Stormwater investigations normally contain descriptions of existing land use, plannedland use and suggestions of measures and technical solutions for the future disposal ofstormwater.The initial part of the thesis consisted of literature studies on stormwater andstormwater investigations to understand the science.