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1146 Uppsatser om Sustainable cultivation - Sida 10 av 77

Är plöjningsfri jordbearbetning bättre än konventionell plöjning? :

The background of this study is the fact that it nowadays is more common to grow wheat after wheat. Usually we plow every autumn to remove the straw, and we wanted to study the effect of alternative methods to do it. We have done this experiment to answer the question if no tillage is better than conventional plowing. The results of the field experiment indicate that there is a link between plant establishment and the choice of equipment, but also a higher weed pressure in experimental plots with only ground tillage. The equipments which left much straw on the top of the ground the problems with fungi were more severe.

Att hylla livet, men rädas dess framtid : Den globala uppvärmningen genom Bob Hanssons ögon

The main purpose of this thesis is to investigate the possibility to communicate messagesrelated to sustainable development through cultural works. Culture is here synonymous toliterature or, more specifically, the fiction genre. According to ecocritical research, this genrehas the capacity to contribute to a more sustainable development and is therefore interestingto analyse from an environmental point of view.The novel selected for the study is Vips så blev det liv - eller en hyllning till blågrönalgen(2010), written by the Swedish author Bob Hansson. The analysis is mainly focused on howthe book?s climate related messages are formulated and integrated in the story.

Vermicompost for reduction of vegetable waste - and a possible means to produce fish feed in aquaponic systems?

Aquaponics is a food production system consisting of a consecutive cultivation of plants and aquatic animals, fish or shellfish, in recirculating water. The plants feed on the nutritious effluents from the fish tank and bacteria converts ammonia from the fish tank into nitrate that is absorbed by the plants. The plants receive nutrition and the fish gain purified water. The environmental impact of the production of fish meal and fish oil used in conventional fish feed includes a large consumption of fossil fuels with subsequent carbon dioxide emission. The aquaponic system can be made environmentally sustainable and self-supporting if supplemented with a vermicompost/vermiculture for the production of worm protein as a fish feed. Vegetable waste from the hydroponic part of the system can be reused as worm feed in the compost and the protein rich worms can be harvested, dried and grinded and brought back to the aquaculture as fish feed. As a first step in this direction, I have investigated the effect of recycling of vegetable waste in vermicomposts on the growth and number of earthworms (this was evaluated after harvesting). The hypotheses were that earthworms can be cultivated in the vegetable waste and that by adding manure to the vermicompost it is possible to obtain a nutrient content adequate to support a continuous worm harvest, in other words create a vermiculture. Eisenia fetida and Dendrobaena veneta were grown in 20 L bins containing peat mixed with either poultry or cattle manure. The proportions were 70% peat and 30 % manure. Discarded plant parts from lettuce cultivation was added to the vermicomposts (35 g per week) and water was supplied with 0.8 L per week.

Från konsument till medproducent : förekomsten och utvecklingen av Community Supported Agriculture i Sverige

Community Supported Agriculture (CSA) is an unconventional model of agriculture expected to contribute to a more sustainable food supply and a sustainable landscape; the development of rural areas; a stronger relationship between producer and consumer and a healthier diet. This study, with a focus on food production and the link between the producer and consumer, describes the origin and current development of CSA in Sweden, including the prerequisites for CSA in a Swedish context. Organizations and entrepreneurs working with CSA and related projects are identified and interviewed. The notion of CSA in Sweden is still in its infancy, but a rapidly growing interest currently can be detected. The fact that the identified CSAs are found in different Swedish regions with variations in degree of urbanization and intensity of agriculture indicates that the prerequisites are there for the concept to grow, both in rural as well as urban areas.

Fältdiagnostik - ett verktyg för hållbar odling : Resultat och tillämpning av fältdiagnostiska metoder i planeringsstadiet av en ny trädgårdsblåbärsodling

I det här arbetet undersöks fältdiagnostiska metoder och användbarheten av dess resultat i planeringsstadiet av en ny trädgårdsblåbärsodling. Syftet är att fastställa vilken information som kan erhållas från en jordanalys, penetrometerundersökning och en jordmånsbeskrivning samt vilka rekommendationer från dessa undersökningar som vidare kan härledas till planeringen av en ny trädgårdsblåbärsodling. Som exempel och fallstudie används en bit åkermark i Ockelbo där provmätningarna ägde rum.Resultatet visar att fältundersökningar i kombination med en jordanalys gjord på laboratorium är ett bra verktyg för att utreda en jords grundläggande förutsättningar. Jordanalysen visar hur näringsinnehållet ser ut i jorden samt vilka eventuella näringsbrister eller näringsöverskott som finns. Penetrometerundersökningen informerar om eventuella markpackningar, som utgör eventuella hinder för t.ex.

Bergvärme och solenergi i flerbostadshus : En förstudie över Kv. Uppfarten

The society strives for sustainable development, in the construction industry it is expressed through sustainable building. Energy and LCC analyzes increases the ability to make conscious decisions in the process. A problem in the construction industry is that energy and LCC analysis is not used to the desired extent, as they are perceived as complicated and time consuming. The report aims to achieve a more sustainable building through increased use of energy and LCC analyzes.The goal is to show how BIM can be used to improve the efficiency of the energy and LCC analyzes.The study was conducted with a literature review and a case study to answer which information that is required in a BIM model to perform energy and LCC analyzes. The study also shows which software can be used in BIM based energy and LCC analyzes and how the analyzes can be carried out efficiently.The result shows that effective analyzes may be performed if the BIM-model contains the relevant information for making analyzes.

Miljöpåverkansbedömning vid tillverkning av etanol från cellulosabaserade råvaror : ekologisk gård självförsörjande med drivmedel

Fuel produced from renewable resources is of big interest. In this project the difference between a few different renewable materials are compared on the matter of environmental load when ethanol is produced. The renewable materials that are compared are Salix, straw and reed canary-grass (rörflen). The cellulose in the material is cut down to small pieces and then hydrolysed so that the sugar from the cellulose can be fermented into ethanol. Tha amount of ethanols that is studied in this work is the smount of ethanol needed to cultivate 1000 ha. The functional unit in the report is 1000 ha.

Utbildning för hållbar utveckling från ett lärarperspektiv i årskurs 4-6 : En studie om lärares medvetenhet, föreställningar och utbildning inom utbildning för hållbar utveckling i Sverige och USA.

The primary purpose of this degree project was to investigate teachers conceptions about education for sustainable development and their education within the area. Teachers from Sweden and California have taken part and one of the aims with this study was to look if any differences could be found depending on what country the teachers came from. Therefore, this study has used a qualitative approach where conception maps and interviews have been used to get a result. Furthermore, the result showed that none of the differences that was found can be linked to the participants home country. The study also showed that several of different teaching traditions and educations philosophies was represented.

Hållbar konsumtion av nötkött och mjölk

Sustainable beef and milk consumption. The consumption of beef and dairy products in Sweden is high. A lot of greenhouse gases are emitted from the production of these products. The production of beef in Sweden has decreased but the import has increased. The number of dairy cows has decreased while beef-production with suckler-cows has increased in Sweden.

Hållbarhetsstrategier i en infrastrukturindustri : En studie om Skanska och dess CR strategier

This bachelor thesis in business economics raises the topic about Corporate Responsibility (CR), this topic is currently being discussed in a variety of channels and today an increasing number of companies are involved in corporate responsibility. How do Skanska work with sustainability and why are they doing this? It is also important to see the results of the work with sustainability will lead to. We will go into more depth in one of Skanska's projects, project M25, to investigate the CR strategies they use and see how they actually work with sustainability. The purpose of this paper is to describe and analyze how and why Skanska is working to implement CR policies in their operations and more specifically from the M25 project in order to achieve sustainable business development.

Hållbart agerande inomFacilities Management ? Fem förslag på förändrade arbetssätt vid outcourcing

Sustainability is a term that is constantly gaining focus in our society and we are becoming more and more aware of the need to take the next generation into consideration when making decisions. The sustainable activity within the core business is growing and is also connected to profitability in ways that have not been seen before. However, the activities that are not included in the core business have not yet reached this long-term perspective. These non-core businesses within an organization goes under the term Facilities Management (FM).This paper focuses onReal Estate businesses, FM-suppliers and the relation between them.The purpose is to investigate current knowledge regarding outsourced FM-services and the real estate organisation?s use of these services.

Växtanvändning i krävande miljöer : en studie i sydvästra skåne

Vegetation is a much appreciated element in our outdoor environment that has many advantages as well for the climate as for people?s health. However in some types of environments vegetation may be problematic. Especially in urban areas with limited space, solid surfaces, pollutions, and warm and dry climate. In these environments vegetations may have difficulty surviving and moreover it may have a negative impact on the environment around it.

All invited : waterfront park design for sustainable tourism in Miches, the Dominican Republic

Hidden away in the pristine landscape on the northeast shore of the Dominican Republic, the remote village of Miches is on the verge of shifting its economic resource base from traditional fishing into what could become an international model for sustainable tourism. The aim of this thesis was to produce a vision of a waterfront park near the center of the village; demonstrating concept-based landscape design that reflects the goals of sustainable development originating from the local incentive structure. A composite landscape analysis and design concept both served to inform and guide the design work, which was executed through model building, hand drawings, and production of a visual presentation in the format of an architectural competition entry. The design concept, All invited, signifies the distinction between the development that is about to take place in Miches and the otherwise common all-inclusive resorts, where tourists are set apart from the local community and spend most of their time within the fenced-off premises of the hotel. All invited also captures the typical Dominican hospitality, and mirrors the aspirations of turning Miches into a safe and welcoming place for visitors. The result is a public park design that is equally inviting local residents as it is to tourists, and where the unique qualities of the site are emphasized without being exploited.

Handbok för växtinsamlare : med erfarenheter från sex nutida svenska experter

What makes a Swede betake himself into the Chinese wilderness? How does the Rio Convention influence a plant collector? And who will crack the nut positioned 12 meters up in the crown of a tree? There are many secrets behind the act of collecting plants. In many regards, the documentation of the collection of plants for a Swedish purpose has been unsatisfactory. The focus of the publications is on what plant species that have been found rather than information on how these plants have been collected. Only few results of experimental cultivation are available. There is no doubt that there exists knowledge that has not been publicised yet.

Variationer av klor, svavel och aska i havrekärna : odlingsfaktorernas inverkan på havrens bränsleegenskaper

The increasing oil prices during the last years have made it profitable to use cereal grains as a fuel. When compared with wood, cereals contain higher amounts of Cl, S and ash. The Cl and S content makes the gases from cereal combustion more corrosive than gases from wood combustion. The goal of this master thesis was to find out the variation of Cl, S and ash content for oat grain grown under different conditions. Oats was chosen because in Sweden it's considered as the cereal with the best fuel qualities.

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