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7067 Uppsatser om Forest development - Sida 52 av 472

Bokhögstubbar i Klåveröds strövområde : utbredning, egenskaper och betydelse för rödlistade vedlevande skalbaggar

Lack of dead wood is the main cause of decaying or loss of populations for many forest species. To increase the amount of dead wood is a prerequisite to maintain biodiversity in forests of northern Europe. In summer 2006 the recreation area Klåveröd, at Söderåsen in Skåne, Sweden, has been inventoried for high stumps (snags) of beech, (Fagus sylvatica). The result of the inventory has been compared with data of the real estate and forest management directories from the owner, region Skåne. The results have also been matched with the results from an inventory of saproxylic beetles in 2005, performed with windowtraps on selected snags both in the area and the adjacent national park Söderåsen. 594 snags were found on 747 ha.

Ny metod fo?r ma?tning av va?gkvalitet : En statistisk studie o?ver samband mellan va?gkvalitet och socioekonomisk utveckling

New method for measuring road quality- A statisticalstudy of the relationship between road quality andsocioeconomic development A new tool with implications for road maintenance has the potential to yield statistical data for road quality in a large number of regions. This thesis investigates the possibility to develop a method, from this data, for evaluating the effects of road quality on socioeconomic development.The thesis is essentially divided into two parts. Part one looks to qualitatively establish the link between socioeconomic development and road quality and the second part focuses on how to develop a method for evaluating the effects of road quality on socioeconomic development. A method was devised using categorical data and a multinomial regression model. This method provides a comprehensive overview of the complex relationship between a variety of different variables.

Kvalitetssäkring och processtyrningav ytstruktur på lackerat objekt

To be allowed to sell Z-suspended vehicles with dipped beam Xenon or LED lighting, Scania have to develop automatic headlight level control. This master?s thesis aims to be the foundation to that development.The thesis consists of several parts; a market analysis of how competitors to Scania and the general vehicle industry solve this problem; several available principles for detecting the amount of control needed; the construction of a test station for sensors, a control unit and components connected controlled by the control unit; a further theoretical and practical development of one principle ? one rotational sensor connected between the chassis and the back drive axis; a state flow model programmed in Simulink that produces the control signal for the headlight leveling from the sensor input.Lastly the thesis gives some recommendations to the further development and implementation of automatic headlight level control on Scania vehicles..

Sortimentsinriktad avverkning

Forest enterprises have always searched for ways to improve efficiency. For the past few years there has been an emphasis on stock-keeping levels. Increased demand for fresh round timber and the need to decrease the amount of tied-up capital has made the forest industry reduce its inventory levels. This has brought on a higher demand on the timber supply from the forest management districts concerning both delivery in time and assortment output. As a result, the flow of timber has fluctuated a lot with serious consequence for the timber supply during 1994.

Renens fejskador på tall- och contortaplanteringar inom Malå samebys höst- och vinterbetesområden :

The effects of Reindeer mechanical damages on the planted regeneration of Pinus sylvestris and Pinus contorta. Semi-domesticated reindeer can damage young trees. In late winter reindeer rub their antlers against young trees. The aim of this study was to quantify those damages. This study covered planted objects from three different areas in northeastern Sweden.

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.

Stormskador i stickvägsgallrade bestånd i sydvästra Sverige :

A storm in January 2005 felled 75 millions cubic metres of forest in South Sweden. Previous studies of wind damage in thinned stands indicated the importance of early thinnings. The risks of wind throw increased by increasing age and height of the stands. Previous studies also indicated increasing risk of wind throw along the strip roads. The aim of the present study was to investigate wind damage in Norway spruce stands in South Sweden in relation to time of the first thinning and different pattern of strip roads (width, length and direction).

Med språket i centrum : Undervisning i svenska som andraspråk i den mångkulturella grundskolan

The aim was to find out teachers in Swedish as a second language in primary schools view on how they work with a language development teaching in a multicultural environment. I did a semi-structured interview where I both made questions before the interview and also used individualized follow-up questions during my interview. I did that because I really wanted to get answers to the subject and the aim of the essay. Two teachers in Swedish as a second language have been interviewed. The result shows that a holistic approach to language development is important, where great emphasis lies on understanding. Teachers say that communication and interaction are key factors and that it is important with good linguistically appropriate and understandable texts where the words/concepts are learned and used in the right context. .

Diskursiv diskrepans En diskursanalys av biståndseffektivitet.

This thesis examines the relationship between OECD-DAC and Civil Society Organizations (CSOs) within an aid efficiency context. The ability for these two actors to cooperate is highly important and determines the outcome for a major part of the development aid in the new millennium. The development agenda for the new millennium emphasizes aid efficiency as a key to a more successful aid, and this requires increased cooperation between all actors. The analysis made is a discourse analysis. The discourse of aid efficiency is analyzed, both its preconditions and results.The analyze finds out that there is a gap between OECD-DAC and CSOs in terms of how to handle aid efficiency.

En studie av framväxten av en europeisk asyl-och migrationspolitik

This thesis treats the development of the European Union asylum- and migration politics and the EU member states transfer of authority to the European Union. The main purpose has been to look closer with the use of the application of theory of neofunctionalism and liberal intergovernmentalism on the European Union case. The focus will be to answer the following questions: How has the political development within EU asylum and migration policy developed through the period of The Single European Act to the ratification of the Stockholm program? And how can the chosen theory explain European countries transfer of national decision regarding asylum policy in favor of a supranational European asylum policy? Based on the available material of European Union programs and harmonization measures for this area I have attempted to understand to what extent the European Union?s development in the area of the asylum and migration politics can be explained through the theories of neofunctionalism and liberal intergovernmentalism. The result of my analysis is confirmation of the European Union development of the area of the asylum and migration policy and also a series of explanations according to the theories regarding the member states transfer of authority to the EU.

Hållbarhetsredovisning i svenska företag: - utveckling, trender och drivkrafter

This study aims to investigate development and reasons behind sustainability reporting in large Swedish companies. By examining 15 companies? environmental and sustainability reports between the years 2000 and 2008, data was collected on matters such as frequency, scope and design. Identified trends were to a large extent in line with previous studies on international development; sustainability reporting is growing in several aspects. The authors have found one major reason for this development to be increasing requirements and expectations from stakeholders and a need for companies to legitimize their actions.

Byte av systemutvecklingsmetod : En verksamhetsnytta eller en nödvändighet?

 AbstractSystem methodology is in the very heart of system development, it is a crucial part of how you define your work, how you choose to approach the actual problem at hand and how to solve it. Researchers in the system development field has shown that not all methods in theory are in compliance with how it is practiced by the companies who use them. In our thesis we have studied a larger international IT- company and one of their local offices in Sweden, who some years back changed their system development method from a more traditional to an agile one. Our aim of this study has been to establish whether both of these methods has differed between theory and in actual use, and if so, why this has occurred and what the underlying rationality might have been to promote this change. Our questions that we sought to answer were; 1.

Produktivitet och lönsamhet vid skogsbränsleuttag längs skogsbilvägar :

With an increased demand for biomass based energy and with development of better technique harvest biomass, new possibilities open up. With the possibility to combine traditional cleaning of road?s right of way with biomass harvesting, the work of suppressing tree vegetation could become profitable or at least decrease the road maintenance cost. However, knowledge about productivity and profitability in mechanical biomass harvesting in roads? right of ways are still limited.

Naturanpassat bostadsbyggande :

I am in this essay to find out how to successfully combine new development with preservation of natural values, mainly large scale vegetation and ground formations.This is done by studies of three developments. The first development, Engeltofta backe, lies 7 km northeast of Gävle. The expectations of natural preservation were not fullfilled when this area, after the explotation, did not have any vegetation of value left. The second example, Östra Kvarnskogen in the community of Sollentuna, shows, as far as one can tell at the moment, a sucsessful combination of new development and preserved nature. The third example is a development in the community of Kullön. In this area the ambition of combining preservation and development was fullfilled. After studying vital documentation in each planning process, I made interviews with different actors in each of the three processes. I thereafter compared the different documents and answers from the interviewed persons to find out if there were any significant similarities or differences which could be of importence when natural values is to be preserved in new developments. My conclusion of this study is that it is of great importence to define key expressions often used in the process, such as natural values and preservation.

Portfolio som arbetsverktyg i förskola och skola - barns beskrivningar av sin portfolio

The study sheds light on pupils individual plans of development and portfolios from the perspective of children. It has an ethnographic standpoint. It was carried out on children and pupils in pre-school, pre-school class and third grade. By further investigating how children and pupils use their individual development plans and portfolios, in which settings and to whom they communicate them, this study is able to grasp the discourse that is created around the instrument itself. This study is also interested in and aims to find the theoretical frame, in essence, which envelops both the construction of childhood and children?s own activities within the limitations and opportunities that this structure offers.

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