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1282 Uppsatser om Matter conservation - Sida 11 av 86
Stubblyftningens initiala effekt på emissioner av växthusgaser från en granmark i Småland :
In order to reduce greenhouse gas emissions from human activities fossil fuels will have to be replaced with renewable energy alternatives, such as bioenergy. Sweden has a great potential to produce bioenergy derived from forest products and there is currently a great interest within Sweden in using stumps for bioenergy production. However, the environmental consequences of the method need to be investigated before stump removal can be performed on a large scale. Swedish forest soils contain large carbon pools and a different land use may change conditions so that soils that presently act as sinks of carbon could potentially turn into sources of carbon release instead.
This study investigates the initial effects of stump harvesting on the emissions of three greenhouse gases, carbon dioxide, methane and nitrous oxide. The emissions were measured from the soil surface in a Norway spruce forest located in the southern part of Sweden.
Den kommunala Arbetsmarknadsenhetens relation till Arbetsförmedlingen och Socialförvaltningen : med fokus satt på legitimitet och samverkan
The unemployment rate in Sweden is increasing even though there are more and more municipal activation policies established. The activation policies aim is to decrease the unemployment but that is not yet happening. This problem has led us to go through with this study.The aim of this study was, from an organizational perspective, to examine and describe how the interaction works between the Municipal Employment Services, Employment Office and Social Services in a Swedish medium sized municipality. Special focus was upon the legitimacy of the Municipal Employment Services. This study was based on nine semi-structured interviews with managers and employers within the organizations in this study.
Skötselåtgärder vid nyetablering av skyddszoner vid bäckar i södra Värmland :
Buffer zones play an important role for the water quality in our watercourses. When harvesting a forest close to a watercourse a buffer zone should be left. When it's not left, it will lead to radical changes in the environment for the water organisms. The overall purpose of this thesis was to illuminate the production- and environmental thinking when establishing new buffer zones in south of Värmland. The partials goals were to determine choice of tree species, ways of regenerate, occurrence of soil scarification and the occurrence of machine tracks in newly established buffer zones.
H?RNERVMOSSA I SANDSJ?BACKA NATURRESERVAT: Analys av h?rnervmossans invasivitet p? ljunghedens vegetationstyper
Heath star moss (Campylopus introflexus) is an alien species in Sweden and is currently classified as composing a "very high risk? of becoming invasive in the country according to SLU, and has in several parts of the world taken over large areas in a short time. The moss is characterized by its preference for disturbed and burned land, something that occurs on the heathland in the Sandsj?backa nature reserve, when burning for nature conservation purposes is carried out annually. Sandsj?backa's heathland is a valuable ecosystem and is one of the few heathlands in a favorable condition that remains in Sweden after strong reforms in modern agriculture in the last century, which led to forest succession of these cultural environments.
Klimatförändringars påverkan på kulturmiljöer i Uppsala stad ur ett geovetenskapligt perspektiv
Cultural heritages are environments created by humans that are considered to have a conservation value for the posterity. They can be seen as one of society's non renewable resources. It is important to have knowledge of how cultural heritages are affected by future climate changes.The water flow in Uppsala is estimated to increase during winter and decrease during spring and summer. Precipitation will gradually increase as well as the intense short period precipitation. The average temperature is estimated to increase as well.
Den gröna ön: resurs eller museum : om naturresursförvaltning i Malawi, Afrika
Vilket motiv och vilken metod som används för att bevara ekosystem, växt- och djurarter har skiftat under olika epoker. Idag skyddas naturreservaten genom mer eller mindre lyckade metoder, och för att lyckas behövs olika faktorer uppfyllas. I skogsreservatet Thuma i Malawi arbetar en ickestatlig organisation med att bedriva ett naturvårdsprojekt med syfte att rehabilitera områdets ekosystem. Fokusen, i denna deskriptiva studie har varit huruvida den historiska utvecklingen inom naturvården, från stängsel och utestängande till involverande och deltagande, mot Community-based conservation, har fått genomslag i naturvårdsförvaltandet av Thuma samt hur dessa strategier påverkar befolkningen runt reservatet. Genom observationer och intervjuer med bland annat by-överhuvuden, reservatarbetare och företrädare för förvaltarorganisationen har situationen i och kring reservatet kunnat kartläggas.
Standardiserande CAN drivrutiner
This master thesis project will describe and evaluate the interfaces between applications and Controller Area Network, CAN, interface boards from different manufacturers. The interfaces have corresponding functions but the usage of parameters is different. The simply communication of sending and receiving messages is more alike than the supplementary functions between the different interfaces. The CAN communication is more controlled by the CAN protocol and is therefore more alike. The evaluation shows differences and similarities between different interfaces and also difficulties and options to translate them.
Den fungerande stadsplaneringen : En studie i uppfattningar och effekter av torget och dess påverkan på demokrati
In this undergraduate thesis you will venture on a journey through the land of democratic values and urban planning. My research question is stated as: whether or not urban planning can show effects on democratic values and whether or not the municipalities in Sweden takes these possible effects into account when planning their city centres. You will in my theory part of this thesis be able to read about different views on urban planning and on democracy. Famous authors like Robert D. Putnam and Richard Florida will be examined as well as other theorists on democracy and urban planning.
Bogsår, en bedömningsfråga.
In 2009, the responsibility for animal welfare was moved from the local authorities at the municipality(kommunerna) to the County Administrative Board(länsstyrelsen). This was a result of many differences between the different municipalities in how they handled animal welfare. Shoulder lesions of sows are a matter of opinion and therefore, a complicated question. Sows suffer from shoulder lesions for many reasons: e.g. the amount of straw available.
"Som politiker ska man vara noga med att inte lägga sig i"- Om politisk påverkan i socialt arbete
This study is about the perception of politics in social work. The aim of the study was to seehow people working with social work in municipalities describe their perception of how politicsaffect their work. The study was conducted in two municipalities in middle Sweden,which had a transfer of power in the 2006 election. Six people; two social workers, two executivedirectors and two politicians was interviewed about their perceptions about politics, ifthe ideological direction of the municipal matters, and how politics effect social work and theorganization. As analyze method organizational theory with focus on change and power wereused.
Energibalansen för ett nytt flerbostadshus i Mellansverige : Beräkningar intervjuer och analys av energikraven i Boverkets Byggregler
Abstract This degree project comprises 30 credits, i.e. 20 weeks of work. The work mainly deals with the energy balance for a multi-family house in Västerås and the requirements for energy conservation in the Swedish building code, BBR. Calculations of the energy balance are supplemented by a number of interviews. Energy conservation in general has become more important in recent years and the subject is in line with increased public awareness. This importance and attention is explained by environmental problems in general and global warming in particular, but also by rising energy prices.
Nutrient efficiency in Swedish dairy cows fed total mixed rations or partial mixed rations
The relatively poor economy in European dairy farming might be improved from efficient feeding systems and dietary management. Increasing herd sizes and transition to loose housing systems in Sweden, increases the possibilities for other feeding systems than separate feeding that is the traditional feeding system in Sweden. Other possible feeding systems are partial mixed ration (PMR) and total mixed ration (TMR), where the TMR system sometimes is associated with overfeeding and thereby increased environmental impact and high feed cost. Diets providing nutrients above or below animal requirements are considered as unbalanced, which in turn are associated with reductions in health, fertility and milk production. On the other hand, a balanced feed ration improves feed efficiency, nitrogen utilization and profitability.
Staden som dött två gånger- en analys av Pompeji och dess bevarande
This essay concerns the site of Pompeii and its preservation. The aim is to investigate what causes the decay of the ruins, how to prevent it and what consequences the tourism has on the site. The material consists of interviews with three Swedish scientists who are currently working with documenting a block in Pompeii. The result reveals a large number of threats against the city, such as climate, tourism and an inadequate economy situation. Examples of solutions are more investments which can be used for restorations and reconstructions, and guards to prevent vandalism.
ALK?RR - K?LLA ELLER S?NKA F?R V?XTHUSGASERNA METAN OCH LUSTGAS? Empirisk studie av v?xthusgasutbyte i kustn?ra alk?rr p? den svenska V?stkusten.
Due to global climate change and the rising levels of greenhouse gases (GHG) in the atmosphere, the interest for seeking solutions for mitigation has increased. While much attention has been directed towards technical solutions such as carbon capture and storage (CCS), biogenic carbon sinks has also garnered significant attention. Previous studies have shown that coastal ecosystems such as seagrass meadows and mangroves have a much greater capacity for storing carbon (C) compared to terrestrial ecosystems. That raises the question if other coastal ecosystems, such as coastal wetland forests, that previously haven?t been considered as blue carbon habitats also contribute to coastal carbon sink capacity.
Effekter av två olika hösilagefoderstater på tarmfloran och träcksammansättningen hos häst och gris :
The aim of this study was to investigate if the botanical composition of haylage affects pH, dry matter content and microbial composition of the faeces in horse and pig and ileal environment in pigs. Two separate studies were conducted where pigs and horses were fed two diets containing haylages with different botanical composition. The first haylage was from a tilled land dominated by timothy and meadow fescue and the other haylage came from a meadowland with a large inclusion of dandelion, 25 % and common couch. The dry matter content (70.8 % and 73.0 % respectively) and the pH-value (5.7) were similar in both feeds.
The first study was made as a three-periods switch-back study with 7 Standardbred horses. In the first and the third period, 7 and 9 days long respectively, the diet consisted of the haylage from the tilled land, oats, sugar beet pulp, soy bean oil meal, lucerne pellets and brewers yeast.