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329 Uppsatser om Wetland for nitrogen retention - Sida 11 av 22

Vattendraget på Kåbo golfbana : en kartläggning som ett steg i golfklubbens miljöarbete

This degree project studied surface waters on Kåbo Golf Course in Uppsala, Sweden, with the aim of determining the status of the water and how it is affected by the activities of the golf club, and to obtain suggestions of measures to create better conditions for the water environment on and around the golf course. The project forms part of the environmental protection work of Kåbo Golf Club, which is working towards achieving environmental certification from the Swedish Golf Association (SGF). The study is based on literature studies and quantitative and qualitative field studies of water on the golf course, with the focus on environmental factors identified as being important for the golf industry and on strategic environmental goals developed by SGF. The number of open water bodies in the Swedish landscape has substantially declined during the past 200 years, so it is important to save those that remain. This study showed that the surface water at Kåbo Golf Course is an important element in the surroundings since the area contains few wetlands, which can be a habitat for large numbers of species. The stream and ponds on Kåbo Golf Course also have the important function of serving as water hazards in the game and adding difficulty and variety to the course. Since Kåbo Golf Club wants its surface waters to look aesthetically appealing, extensive algal growth and drying up of ponds during parts of the year are regarded as problems.

Friskvårdsprogram : Ett medarbetarperspektiv på hälsa, motivation och lärande

Due to an increasing amount of people being put on a sick-list the issue of work health has come to receive a lot more attention. To confront the problem, different varieties of keep-fit measures have been launched in the workplace. A prime example of such a measure can be found at Centralsjukhuset Kristianstad, which this survey is investigating. The primary goal of this study is to investigate the use of the Keep-fit measures program and to identify what motivates the employees to utilize this program. Further we would like to investigate if the program, through motivation and learning, generates improvement and retention of the individuals? health.

Fröodling av Raj- och rörsvingel i Sverige

Festulolium (Festulolium) and tall fescue (Festuca arundinacea) has not been grown inSweden over a longer period. So far there is no greater area cultivated, but the area isincreasing. Festulolium and tall fescue are expected to eventually replace meadowfescue in many leyseed mixtures to dairy cows in southern and central Sweden. Tallfescue has in recent years become popular again. Festulolium is a hybrid betweenryegrass and fescue.

Askgödsling och dess lämplighet i torvmarksskogar tillhörande Sveaskog Förvaltnings AB : en litteraturstudie

During whole-tree harvesting, there is a risk that the soil will become impoverished of nutrients. To prevent this, nutrients are returned to the harvested site as wood ash. This action also reduces the risk of soil acidification. Nevertheless, the ash does not result in any increase of tree growth if it is added on mineral soils, which is where the measure is most commonly used in Sweden. Due to the lack of growth response, the interest from landowners is small, which is why ash amendment today is not done enough to compensate for the need.

Betydelsen av återskapade våtmarkers ålder, area och fiskförekomst för simfåglar : En biologistudie ur ett lärarperspektiv

Återskapade våtmarker är av stor vikt för den biologiska mångfalden och särskilt viktiga för hotade simfåglar. För att öka kunskapen kring hur faktorer som våtmarkers area, ålder och fiskförekomst påverkar simfåglar i återskapade våtmarker studerades fyra våtmarker i Tinnerö naturreservat, Linköpings kommun. Av speciellt intresse var svarthakedoppingen (Podiceps auritus). Antalet svarthakedoppingar i de studerade våtmarkerna hade en positiv utveckling under våtmarkernas första år. Dock minskade antalet svarthakedoppingar i området mellan år 2009 och 2011.

Kunskapsöverföring och kunskapsbevaring i offentliga organisationer

Denna studie syftar till att belysa hur offentliga organisationer arbetar kring kunskapsbevaring och kunskapsöverföring. Vi har undersökt hur fem offentliga organisationer med olika organisationsstrukturer arbetar med att bevara kunskap inom organisationen, samt hur de överför kunskap mellan medarbetare och till nyanställda. Studien har samlat in det empiriska resultatet med semistrukturerade intervjuer. I analysen diskuteras det empiriska resultatet med ämnen som epistemologiska perspektiv inom knowledge management, maktperspektiv, politiska direktiv, arbetsmiljö samt kommunikationens roll. Resultatet av analysen påvisar bland annat att muntlig kommunikation är en viktig framgångsfaktor i en kunskapsprocess..

Strötorvsanvändning i djurstallar : en litteraturgenomgång

Peat litter has been used in animal houses for a long time. Because of its good ability to absorb liquid and nutrients from the manure it can create a dry surface for animals and a valuable manure product. Through changes in agricultural practises the use of peat litter has diminished and is to a great extent replaced by straw, sawdust and cutter shavings although Sweden is rich in peat-findings. The aim of this work was to summarize the presented knowledge about the used of peat litter, techniques, advantages and disadvantages and to compare with other commonly used litter materials. Articles on peat litter have been searched for in magazines, databases and books at SLU library. Visits to peat industries, interviews with peat producers and with peat researchers contributed to the material. Peat is not a uniformly material.

Kväveläckage inom Tolångaåns dräneringsområde : modellering och åtgärdssimulering

Under de senaste 300 åren har jordbrukslandskapet i Sverige genomgått stora förändringar. I början av 1900-talet introducerades konstgödslet och efter andra världskriget ökade gödslingen dramatiskt i syfte att maximera produktionen. Detta har lett till att överskottet av kväve har spolats ut i vattendragen. I detta arbete har stor vikt lagts vid att skapa en egen kvävemodell i syfte att simulera kväveläckaget från jordbruksmarken i Tolångaåns dräneringsområde..

Impact of Eucalyptus plantations on pasture land on soil properties and carbon sequestration in Brazil

Soil organic carbon (SOC) stocks and fluxes in forest ecosystems are influenced by natural and human disturbances. In the tropical regions the highest impacts on disturbance in forest C cycles are related to human activities such as conversion of natural lands to cropland and pasture areas and to forest plantations. The disturbances in the forest C cycles will release CO2 emissions to the atmosphere triggering global warming. In this study the focus was set in subtropical soils in Brazil, south extreme region of Bahia. The aim of the study was to investigate whether reforestation of Eucalyptus plantations under former pasture areas will help mitigate climate change through carbon sequestration.

Gröna tak som del i ett hållbart stadsbyggande

Green roofs have seen a revival in the society of today. They provide many functions of which both society as a whole and the individual can take part. In particular extensive green roofs, that requires little or even zero maintenance, provides very valuable functions. Green roofs affect our environment and our economy in a positive manner as well as the physical expression of buildings. In this bachelor thesis the impact of green roofs on society has been examined throughout literature studies. The result as a compilation of contemporary research in this field is presented together with a discussion about the use of green roofs in general. The two major arguments for an extended use of green roofs are, the high stormwater retention capacity and the cost-benefits seen over time compared to a conventional roof.

Kundbibehållande och lönsamma kundrelationer genom relationsmarknadsföring: fallstudier på JOB media och Polardörren AB

This thesis focuses on RM and customer relationships and tries to answer two research questions: how firms can retain customers and how to generate profitable customer relationships by using relationship marketing. We conducted case studies on JOB media, a company in Luleå, and Polardörren, a company in Öjebyn, Piteå. Our research has revealed that in many ways our case study companies conform in major ways to the theory in this particular area. However there are differences between how these two firms go about in regard to customer retention and establishing profitable customer relationship. We have discovered that JOB media, which is a service company is more inclined to maintaining close and long-term relationships with its customers.

Effekten på nedbrytningen av rötter vid tillförsel av ammonium sulfat i en granskog i sydvästra Sverige

Decomposition of organic matter is a critical process in the ecosystem, which involves many essential biotic and physical parts. Decomposition is therefore an important process both above and below ground. The rate of decomposition is dependent of many environmental factors for example: pH, moisture and supply of oxygen. The decomposition can therefore be affected by large scaled environmental influences, such as acidification and climatic changes. The root litter in the forest is in different ways affected by acidification, liming and manuering.

Yrkesofficerares drivkrafter : En studie i motivationsfaktorer hos svenska yrkesofficerare

Denna explorativa studie genomfördes med en flerfaldig forskningsstrategi. Empirin bygger på intervjuer och enkäter med totalt 238 officerare varav 228 var yrkesverksamma vid studiens genomförande. Undersökningsfrågorna avhandlade drivkrafter som fick yrkesofficeren att vara kvar i yrket. Resultatet av undersökningen gav att de avgörande drivkrafterna för officersyrket bestod av ett flertal faktorer vilka inordnade under Maslows behovsteori visade sig fylla alla steg i behovshierarkin. Vissa av de avgörande faktorerna uppvisade dock skillnader i viktningsgrad främst beroende av variabler som ålder och vapengrenstillhörighet, men även av variabler som motivationsnivå, utlandserfarenhet samt tidigare civil erfarenhet.

Att gestalta en socialt hållbar begravningsplats

This thesis aims to present the essential background on how to perform climate changeimpact assessments, and to present the results from a climate impact assessment on waterbalance and nitrate leaching for an arable Swedish soil. The soil is a sandy soil in southwesternSweden, grown with spring cereals. This study is meant to be a benchmark example,and cannot be seen as a regional or national assessment for Sweden, rather as an approachto present and analyze the most important parts of these kinds of assessments.A dynamical simulation model (COUP, Jansson and Karlberg, 2004) was used for thisstudy. The model was parameterized and calibrated against data from an experimental site,located in Mellby in Hallands county, south western Sweden. Measurements were carriedout between 1st of April 1988 and 1st of April 1991.

Water balance and nitrate leaching from arable land in a changed climate : a model study

This thesis aims to present the essential background on how to perform climate changeimpact assessments, and to present the results from a climate impact assessment on waterbalance and nitrate leaching for an arable Swedish soil. The soil is a sandy soil in southwesternSweden, grown with spring cereals. This study is meant to be a benchmark example,and cannot be seen as a regional or national assessment for Sweden, rather as an approachto present and analyze the most important parts of these kinds of assessments.A dynamical simulation model (COUP, Jansson and Karlberg, 2004) was used for thisstudy. The model was parameterized and calibrated against data from an experimental site,located in Mellby in Hallands county, south western Sweden. Measurements were carriedout between 1st of April 1988 and 1st of April 1991.

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