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458 Uppsatser om Retention trees - Sida 20 av 31
Kloridhalter i gran utmed en depositionsgradient för havssalter :
The knowledge of the chloride content and its fluxes and patterns in trees is insufficient. Increased knowledge would be desirable, one of many reasons is to be able to more efficiently meet the problems that the substance causes in the pulp industry. The purpose of this study was to examine and describe the chloride concentration of Norwegian spruce (Picea abies L. Karst.) in the south of Sweden. Furthermore the aim was to be able to predict chloride concentration from readily measurable site factors.
En man och hans ?pplen: en fallstudie av Carl Str?mbergs ?ppeltr?dg?rd
This bachelor?s thesis studies Carl Str?mbergs ?ppeltr?dg?rd, a private garden consisting of a large number of apple trees and varieties. The garden is located outside ?rebro, in N?rke, and is owned by a unit owner association whose goal is to preserve and determine the varieties. Through interviews, articles, site visits and documents from Carl Str?mberg, the purpose have been to get an understanding of who Carl Str?mberg was, how he collected the apple varieties and how that process was affected by the climate amongst apple growing and pomology during that time.
Potential för energiklippdrivare i Skåne : markägarintresse, råvarutillgång & ekonomi
As the Swedish governments long term goals include a reduction of fossil fuel dependency,
increasing pressure is placed upon energy companies to create and develop new solutions for renewable energy. The following case study was done in collaboration with the company
Sydved Energileveranser AB and one of their contractors, Enarssons Skogsentreprenad AB.
The objective of the study is to examine the bioenergy situation in region of Skåne and
evaluate the potential solutions in the region for a forest-fuel assortment, based on a bioenergy-cutting-system. As a part of this study I have compared ordinary manual cuttings done with a chain saw and cuttings made using the new ?bio- energy cutting system?. The cuttings made under both systems were tested in areas near agricultural fields or pasture land in order to maintain an open landscape.
Näringsbelastning på en anlagd våtmark från åker, skog och enskilda avlopp :
This work is a part of the project ?Våtmarker i odlingslandskapet ? uppföljning av miljömålen? (Wetlands in arable land ? following-up of the environmental goals). The main objective with this project is to study nitrogen and phosphorus retention in a constructed wetland by using mass balance calculations. Continuous measurements of nutrients and water flow through the inlet and the outlet of the wetland are made. However, substantial amounts of nitrogen and phosphorus were assumed to reach the wetland with a drain-pipe transporting wastewater from nearby houses (10 persons).
Bygelstolpar : Kraft- och spänningsanalys av bygelstolpar tillhörande Bruks mobila hugg 805 CT
This report is the result of a thesis as been implemented during the spring term 2009 atthe University of Gävle.The company Bruks produces mobile chippers which are used for chipping loggingslash, roundwood and parts of trees. The chipper is powered by a separate diesel engineand the chipper can be assembled on trucks, trailers or some other carrier vehicles.When the chip has passed the chipper drum, the chip is collected in an integrated binwhich is mounted on the vehicles frame with dumping yokes. When these dumpingyokes were designed they were probably created with large material dimensions. Theaim with the degree project is hence to study the strengths of materials and, if possible,to suggest an arrangement that can decrease the total weight on the dumping yoke onBruks´ mobile chippers 805 CT.The CAD-program Pro/ENGINEER was used during the project for outlining the 2Ddrawings,as distributed of constructors on Bruks, to solid 3D-parts. The three-dimensionalassembly from Pro/ENGINEER was transferred to Pro/MECHANICA.
Produktivitetseffekter av flerträdshantering
The main purpose of this study is to investigate the productivity effects of multiple tree handling in thinnings. Other important elements have been to investigate in which extent multi-tree handling is used in stands with different stem volumes and the impact of collecting partially delimbed fuelwood assortments has on harvesting performance.
The study is based on data from thinnings in Sydved and contractors' operating activities. Collection and compilation of operating schedules, number of stems and surveyed volumes from several contractors and a large number of executed orders underlying the results.
Multiple tree handling is used to a much greater extent at lower average stem volumes. Prediction models for productivity of the multiple-tree handling harvesters in the study differ from the productivity models for single-tree handling. In the model developed in this study productivity is not as dependent of stem volume as reference models.
"Ska jag ta de här tabletterna?" : Behandling med statiner från kranskärlspatientens synvinkel, en kvalitativ intervjustudie
Background: Coronary heart disease kills more than 7 million people worldwide each year. High levels of blood fat, cholesterol, contributes significantly to coronary heart disease. Lifestyle changes combined with lipid-lowering drugs, statins, is an effective treatment. But adherence to statins is low, not even a myocardial infarction always contributes to adherence. Adherence requires patient education and good communication between patient and physician.
Att söka form
Previously when I have made proposals for privately owned gardens, I have found it difficult to
find strong, extensive designs and to work with room and space. Since this is the field within
which I am going to work in the future I feel that I need more experience, reference material and
ideas on how I, in an early stage of the working process, can work with and consider room and
space.
The aim of this project has therefore been to procure experience, reference material and ideas for
design of a garden in relation to space.
To procure experience and reference material I have, during the fall of 2008, made two incredible
study tours to France and to Japan. I have interviewed the landscaping architect Maria Arborgh
and studied literature. I have also used a garden outside of Gothenburg in which I have been able
to try out different thoughts and ideas regarding shape that have appeared during the course of
my work.
My conclusions about landscaping are that you should first find the different functions in the
garden. The next step is to find an overall theme or shape, use a small number of materials, build
a room with sealing, walls and portals with the help of vertical elements e.g.
Eld som naturvårdare : Kärlväxtflora och vegetationsutveckling efter naturvårdsbränning i två småländska naturreservat
This study has taken place in two nature reserves in the municipality of Uppvidinge in the Kronoberg region in southern Sweden. These have been chosen by the County Administrative Board to be part of a bigger landscape of fire affected nature, and prescribed fire has been implemented in these. The areas are called Ösjöbol and Berga fly and have been burned 2012 and 2013 respectively. Non-burned areas have been inventoried as well. Vascular plants and mineral soil have been inventoried with the Hult-Sernander-Du Rietz scale of five levels. Issues emanate from the County Administrative Board?s goals for prescribed fire: how sticks and herbs were affected, how much soil was uncovered, how the structure and fire favoured species were affected, and how deciduous trees and spruces (Picea abies) were affected. The study shows that the soil increased, as well as the fire favoured species.
Att arbeta till sjöss - Vad motiverar svenskar att välja och behålla sjömansyrket?
2008 kom den första rapporten från Shiptalks undersökning ?Life at Sea ? Seafarer Attraction and Retentention Survey?. I rapporten presenteras vad respondenterna i den internationella studien anser är det viktigaste respektive värsta med livet till sjöss, varför de en gång gick till sjöss och vad som får dem att stanna kvar (Shiptalk, 2008). Rapporten visar intressanta resultat och att göra en liknande undersökning med fokus på svenska sjömän föreföll vara en värdefull idé. Med hjälp av en internetbaserad enkät var det möjligt att erhålla svar från nästan hundra aktiva sjömän på vad som fick dem att gå till sjöss och vad som får dem att stanna kvar.
Fasadism som kulturv?rd
This study is an investigation of how fa?adism can be understood as an act of conservation and compensation in Sweden, through the definition of fa?adism as the act of retaining or reconstructing an existing fa?ade with the construction of a new building behind the fa?ade. The study is executed through an investigation and analysis of the definition of fa?adism, arguments for and against fa?adism related to authenticity, and through an analysis of how current legislation, policies and charters regarding conservation and/or compensation can support or counteract fa?adism. The first part of this study is executed through a literature study of fa?adism on an international level.
Hur kan kundrelationer upprätthållas?: när möjligheten
till fysisk kontakt gentemot kunden begränsas
Relationsmarknadsföring består av att antingen skapa, upprätthålla eller avsluta relationer gentemot företagets kunder. Betydelsen av att upprätthålla relationer med befintliga kunder har ökat under de senaste åren, mestadels på grund av en ökad global konkurrens. Frågan är då hur ett företag upprätthåller relationen med kunden, när det väljer eller tvingas avveckla en distributionskanal vilket begränsar möjligheten till fysisk närvaro gentemot kunden. Denna uppsats syftar därmed till att utreda hur ett företag kan bibehålla kundrelationen när den fysiska kontakten gentemot kunden begränsas. I syfte att undersöka detta utfördes två fallstudier på Scandinavian Airlines System, SAS och Zytt.
The effects of Gotland pony grazing on forest composition and structure in Lojsta hed, south eastern Sweden
Livestock animals affect their environment in a number of different ways, mostly through grazing and trampling. This study focused on the effects of Gotland pony grazing on forest structure and diversity, and the impact on ground cover. To compare the fenced and grazed area with a reference area outside the enclosure a number of transects were used. The study showed that there was no significant difference in height structure and diversity between the compared sites; however, there were a significantly higher proportion of damaged trees inside the enclosure. The ground cover variables showed a higher amount of bare soil, plant litter and wood-rush (Luzula sp.) inside the enclosure whilst grass was more frequent in the reference area.
Vulkanisk svaveldimma : Risken att det drabbar Sverige
In the year 1783 a fissure eruption from Laki in the southern part of Iceland produced a large amount of volcanic gases during a period of eight months. The volcanic gases and aerosols spread across the northern hem sphere due to ideal weather conditions and had a substantial impact on the environment, human health and also climate effects. This, so called dry fog, caused severe health problems, which led to death casualties, killing animals, crops and other vegetation. The consequence was a widespread famine which was aggravated by a hard and long winter in 1783/84. Analysis shows that the Icelandic volcanoes are the primary risk to produce dry fog that can affect Sweden.
Det som andra kallar en kliché kallar vi för en klassiker
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.