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178 Uppsatser om Lake Mälaren catchment - Sida 7 av 12
Whispers in the forest : a field study about communication within Vi-agroforestry
The purpose of this study is to explore and understand the social and structural dynamics of an organization working with questions regarding development. The organization in question is Vi-agroforestry, a Swedish based NGO that works around the lake Victoria basin and the focus will be on their office in Rwanda. I have used a qualitative approach and conducted participatory observation as well as semi-structured interviews to gather data.
I have emanated from the individuals in the organization by using a theory of microsociological organisationperspecive to understand how the employees create and is created by the existing social structures. (Blomberg, 2003)
Even though the office in Rwanda only is a relatively small part of Vi-agroforestry?s operations it is still highly individual and independent from the rest of the organization.
Storyline: en resa ovanför norra polcirkeln
Med vår undersökning ville vi ta reda på om storyline som arbetsmetod befrämjar elevernas lärande om livet den norra Polcirkeln. Utvecklingsarbetet genomfördes i tre olika klasser i årskurs fyra och fem i Crystal Lake, Illinois, USA. Ur dessa klasser valde vi att titta närmare på tre elevgrupper. Förberedelserna bestod i att samla material i Sverige, t.ex. fågelvingar, pälsbitar från djur och dylikt, då vi anade att de amerikanska eleverna inte hade några större förkunskaper, vilket är en av grundtankarna med storyline.
Ackumulation av CO2 och CH4 i istäckta boreala sjöar : Hur förändras ackumulationen i sjöar påverkade av avverkning jämfört med referenssjöar?
The aim of this report was to quantify the accumulation of carbon dioxide (CO2) and methane (CH4) in ice-covered lakes in winter (October-March) during three consecutive years, and to assess whether the concentrations of DIC and CH4, as well as the ratio DIC:CH4 differs between years and between lakes affected by clearcutting and untreated reference lakes. Water- and gas samples were collected from four boreal lakes (two affected by clearcutting and two untreated reference lakes) located in Västerbottens inland in spring. The lakes were found to accumulate on average 91, 55, and 84 mgCm-2d-1 during winters 2012-2013, 2013-2014, and 2014-2015, mostly originating from CO2. The concentrations of DIC (autumn and spring) were higher in the affected clear-cut lakes compared to reference lakes for all years, including the reference year (2012-2013) before clear-cutting. No such difference was found for CH4 or the ratio DIC:CH4.
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.
Nätverksanalys i GIS-miljö för insatskartor : En fallstudie baserad på Uppsala kommuns vägnät
Att maximera sjukhusens och räddningstjänstens täckning av befolkningen är en viktig säkerhetsfråga som diskuteras inom bland annat hälsovårdsplaneringen. Geografiska informationssystem (GIS) kan användas som ett hjälpmedel för att analysera och presentera andelen befolkning som är utanför sjukvårdens täckningsområden och även visa variationer på täckningsområdena när anläggningar slås ihop eller läggs ned. Syftet med arbetet är att presentera en ny, vektorbaserad nätverksanalys i GIS-miljö för att undersöka hur täckningsområdena för räddningstjänsten i Uppsala kommun påverkas.För att utföra nätverksanalysen användes data från Nationella Vägdatabasen (NVDB) över Uppsala kommun. Attributen som användes från NVDB innehöll information om framförallt hastighetsbegränsningar, väghierarki, tid, restriktioner och gatunamn. Täckningsområdena beräknades med ArcGIS och tilläggsprogrammet Network Analyst och resulterade i en översiktlig karta med räddningstjänstens insatstider och även enskilda insatskartor.
Lilaköttig taggsvamp, Sárcodon fuligÃneovioláceus : miljökrav i Sverige och en analys av vad som styr artens etablering
Burnt Spine-cap Sárcodon fuligÃneovioláceus are one the most endangered
mycorrhizal fungal species in Europe. They have their main distribution in Sweden. It
form mycorrhiza with pine and dependent on limestone, which makes it connected to
a rare environment. It has therefore been important to study the ecology of it further
and to recognise the requirement it has on the environment more accurate and what it
need to establish in a new area. In this study, 31 of 34 known sites in Sweden was
visited and studied in field and their history analysed through aerial photographs.
Utsläpp av växthusgaser under islossning i små boreala sjöar
Freshwater ecosystems have long been neglected as an important part of the global carbon cycle. However, research shows that most of the world?s lakes are net-heterotrophic and consequently emitters of greenhouse gases to the atmosphere. In many boreal and north-temperate lakes, most of the yearly emissions usually occur in spring, shortly after ice-thaw. The aim of this study was to quantify the flux of carbon dioxide (CO2) and methane (CH4) in three boreal lakes, during this annual event.
Bottenfaunan i Stensjöån och dess tillflöde Bokån : - en undersökning av tre lokaler
The purpose of this study has been to examine whether the bottom fauna of the stream Stensjöån, has been negatively influenced since the harvesting of peat began on the nearby peat moss Skäftesmyr or not. Comparison has been made with the results of index calculations from earlier examinations in the stream, two calculated indexes has been made, Danish fauna index and ASPT-index. The sampling was made with the kick sampling method, SS-EN 27 828. Three locations were chosen for the examination, one upstream from the peat moss, one just downstream from where the brook from the peat moss joins Stensjöån and a third location near the outlet of the stream to the lake Stensjön. The samples were sorted and the found animals identified to the taxonomic level required for the calculation of the two indexes.
Lust att lära sig läsa : En jämförelse av två olika läsinlärningsmetoder; ljudmetoden och Whole language (kiwimetoden)
AbstractMy purpose with this study was to learn more about different ways to teach children how to read and to investigate how teachers can use more fiction when they teach.During the years that I have been working in school, I have only met teachers who use a method that is built on sounds. The children learns to read from books where the words is not put in their right purpose; for example; we can se a sun, a dear looks down in a lake.After my teacher-education in literature I became more and more interested in if it could be possible to use more fiction when you teach children how to read. I also wondered if it was possible to find readers where the sentences are put in a meaningful story.I heard of a method called Whole Language, or the kiwi-method and I decided to find out more about that method. I decided to make a comparison between the ?sound-method? and the Whole Language-method.I have been using qualitative interviews with both children and teachers with experience from these different ways of teaching.
En ängel och en demon. En idéanalytisk studie om tendensromanen En natt vid Bullar-sjön av Emilie Flygare-Carlén.
The purpose of this master?s thesis is to describe by a gender approach what ideas and values are expressed in the novel One Night at Bullar Lake and how they do coincide to a tendency. We also want to discuss authority and class divisions and how these can be connected to the novel and the author. Our final question is to examine in what way the voice of the female author is represented in the novel. To approach our material we use Yvonne Hirdman?s theories about the construction of sexes and Susan Sniader Lanser?s work about voices of female authors, as well as Horace Engdahl?s studies about the silent voice in literature.
Vad betyder min novell? : Författaren tolkar sin okända text
All my short stories have been written in an intuitive way according to which no outline of characters, intrigue or plot was made in advance. A consequence of this process is that not even myself as the author is aware of the meaning of the texts and therefore I too have to interpret the stories. Because of the character of the text, I use an analysis of archetypes according to C. G. Jung?s analytic psychology.
Spatiella mönster och lager av organiskt klor och klorid i barrskogsjord i sydöstra Sverige
The concentration and storage of organic chlorine and chloride were determined in soil, to a depth of 40 cm, in a coniferous forest in the Stubbetorp catchment area in south-east Sweden. Also, the spatial distribution of the two forms of chlorine was determined. Soil samples were collected at 49 of the nodes in a grid with approximately 105 m between the nodes. The analysis of spatial variability suggested that no spatial autocorrelation was present either within the variable organic chlorine or chloride. This means that no sample was more influenced by another nearby sample, as compared to other samples further away.
Hemoglobinkoncentrationen och dess påverkan på individens känslighet för AMS vid höghöjdsvistelse.
Kroppens prestation försämras vid höghöjdsvistelse pga. syrebrist och individer kan drabbas av akut höjdsjuka (AMS). Samtidigt acklimatiserar sig kroppen genom att bl.a. öka syreupptaget som kompensation för det låga syretrycket. Studiens syfte var att undersöka hur hemoglobinkoncentrationen (Hb) påverkas av hög höjd och om det finns någon korrelation mellan Hb i vila eller Hb-ökningen under arbete tillika individers välmående på hög höjd.
Hur såg Birkas hamn ut och vilka transporter behövdes?
What is located on the bottom in the water outside of Birka? Remains of a water palisade or jetties and other constructions.Birka a Viking Age town that existed between AD 750 and 975 was located on the northwestern part of the small island of Björkö, in the Mälar archipelago of the Baltic Sea in Sweden. The Town was protected onshore by a hill fort and a town rampart. It is a widely spread assumption that Birka had a water palisade as a part of its defense. There are logs and other remnants on the bottom of the lake dating back to the Viking age.
Bestämning av dagvattenflöden i Knivstaåns avrinningsområde
The purpose of the thesis was to map the hydraulic load on the Knivsta river from stormwater runoff, and build a platform for further studies of pollution loads on the rivers ecosystems. New residential areas are planned to be built in Knivsta municipality and it will have an impact on stormwater flows to Knivsta river. To examine the impact this will have, simulations were made in the area as it stands today and after expansion work. The work includes calculation of flows from the populated areas but also from the catchment area around it consisting of woodlands and fields. Because of expected climatic changes which may affect rainfall, the simulations have been performed with different return periods for rainfall data.