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904 Uppsatser om Biological inventory - Sida 14 av 61
Sandstränder vid Vänern ? en hotad strandtyp?
Uppsats för avläggande av filosofie kandidatexamen i Kulturvård, Landskapsvårdens hantverk 15 hp, 2013.
Artrika vägkanter - hur påverkas de av slåtter och underhållsdikning?
ABSTRACT
This study is an exam work at the Department of Ecology at the Swedish Agricultural University, Ultuna, Uppsala. The field work was performed in the counties of Uppsala and Västmanland.
Grassland areas, exposed to annual mowing, are known to host a variety of rare and red-listed vascular species. The area of these grassland are, however, decreasing in the landscape due to modern farming. The fact that roadside verges maintain regular mowing has proven to be a successful concept for many rare vascular plant species in this habitat.
Vascular plants along roadside verges at the State road network were inventoried due to a government mandate during 1995 and 1996. As a result ?Species rich roadsides? were pointed out.
Effekt av brand och bete p? uppkomst av ?rtartade v?xter i restaurerade betesmarker. En j?mf?rande studie
Open ecosystems, such as grasslands and pastures, have naturally been shaped by disturbances like fire and grazing. These processes play a crucial role in creating habitats with high biological diversity, particularly favourable for a wide range of herbaceous plant species. In recent years, many of these disturbances have ceased, leading to encroachment, fragmentation and habitat loss. The aim of this study was to examine and compare the effects of fire, herbivory and a combination of fire and herbivory on the emergence of herbaceous plants. The study was conducted at the Ecopark at Nordens Ark.
Ifrågavarande kronopark skall benämnas Skatan : en skogshistorisk analys av Ekoparken Skatan
People have utilised and influenced the boreal forest for many centuries. Prior to the industrial revolution during the 19th century, however, human use primarily only had a low impact on the forest. When the timberfrontier swept over the country, the Swedish forests came to change for ever. The study site for this thesis is situated in the northern part of the county of Västerbotten, Sweden, and has previously been a National forest. Today the area is an ecopark and the land is owned by the forest company Sveaskog.
Interpersonell problematik och arbetsallians i psykoterapi : Klientens upplevelse och förändring av interpersonell problematik och dess relation till arbetsallians i psykoterapi
The purpose of this study was to examine interpersonal problems and its relationship to the working alliance in psychotherapy. To examine this, data was used from Umeå and Lund University psychology practice client database, which clients responded to by using the self-assessment scales Inventory of Interpersonal Problems Circumplex Scales and the Working Alliance Inventory. The sample consisted of 201 participants that answered the questionnaires both before and after psychotherapy. A second sample consisted of 93 clients who specifically sought help for interpersonal problems. Results showed that the level of interpersonal problems before and after psychotherapy changes.
Detektering av sprickor i vägytor med hjälp av Datorseende
This thesis describes new methods for automatic crack detection in pavements. Cracks in pavements can be used as an early indication for the need of reparation.Automatic crack detection is preferable compared to manual inventory; the repeatability can be better, the inventory can be done at a higher speed and can be done without interruption of the traffic.The automatic and semi-automatic crack detection systems that exist today use Image Analysis methods. There are today powerful methods available in the area of Computer Vision. These methods work in higher dimensions with greater complexity and generate measures of local signal properties, while Image Analyses methods for crack detection use morphological operations on binary images.Methods for digitalizing video data on VHS-cassettes and stitching images from nearby frames have been developed.Four methods for crack detection have been evaluated, and two of them have been used to form a crack detection and classification program implemented in the calculation program Matlab.One image set was used during the implementation and another image set was used for validation. The crack detection system did perform correct detection on 99.2 percent when analysing the images which were used during implementation.
Klippbögar? : hällristningar ur ett LGBT- och queerperspektiv
The purpose of this thesis is to do an inventory of Swedish Bronze Age rock carvings depicting intercourse, and other sexual acts; applying gender traits on these in order to get a glimpse of what kind of normative outlook people at this time had upon sexuality. .
En undersökning av Bergvik skogs och Skogsstyrelsens gallringsmallar mot en gallringsoptimering på simulerade typbestånd
The purpose of this study was to analyze the two thinning models: Bergvik Skog´s thinning model, which is based on total stems and dominant height, And Swedish forest agency´s thinning model which is based on basal area, habitat index, dominant height and recommended number of stems at final felling in Heureka´s StandWise and PlanWise.
The data we chosen for our study were taken from the Swedish National Forest Inventory and we were creating a simulated stand based on a great number of sample plots in Region three from The Swedish National Forest Inventory. We had chosen to create one stand with low habitat index (T20) and one with high habitat index (T24). Our purpose were to come as close as possible to a natural stand in central Sweden. We performed the thinning in StandWise and analyzed the data I Excel files. Our thinning optimizing´s were performed and analyzed in PlanWise.
There wasn´t any big differences between the thinning on the lower habitat index.
Lantbruksföretagets utveckling av ny verksamhet : en studie av fem lantbruksföretag
The structural rationalization of rural firms in Sweden has led to many new creative ways of developing companies. The agriculture sector is characterized by the need of capital in form of buildings, labor and inventory. The rationalization process has led to free capacity in rural firms when new technology make buildings and inventory not longer necessary for the production process. To get a better cost coverage this free capacity can be used to start-up new business areas that help the rural firm to growth.The study aims to identify factors that motives entrepreneurs in rural firms to develop new business areas. The purpose is also to analyze driving forces that lies behind development of rural firms and the forces that support or not support development in rural firms.The study is built upon five cases that all can be categorized as firms with different size and orientation.
Förändringar i vegetationens sammansättning efter en våtmarksrestaurering : Changes in the vegetation composition after a wetlandrestoration
The loss of such great wetlands, which has arose in Sweden the last decades, has created a situation that threats both the function and the biological diversity within the wetlands. Many ecological niches can be found in the wetlands and it is one of the habitats where most different species exist. In the 17th Century people started to ditch damp environments, such as bogs, to create a productive cultivated ground. Further ditches were made when the forestry gave large economical profits. The wetlands were impoverished from both groundwater and nourishment, and this led to a great loss of species.In a corporation with WWF and Skogsstyrelsen in Arvika, the University of Karlstad has participated in the Laskerudproject, a hydrological restoration-project in a forest landscape.
Fördelning av artiklar mellan varuhuslager och varuutlämningslager
Purpose ? The purpose with this thesis is to examine how items can be distributed between stores inventory and an external warehouse. To achieve the purpose criteria that should be considered, how these can be prioritized and used when distributing items between stores inventory and an external warehouse will be examined.Method ? The study started by an examination of the theory that already exists within the subject. The already existing theory has then been examined in reality, on the furniture company IKEA Jönköping, where a case study with one channel has been performed.
NOVA-projektet : ? effekten av ett internetbaserat självhjälpsprogramm med e-poststöd vid behandling av ångeststörningar
Föreliggande studies syfte var att undersöka behandlingseffekten av ett Internetbaserat självhjälpsprogram med e-poststöd, för personer med olika typer av ångestproblematik. Ett ytterligare syfte var att undersöka behandlingsresultaten när deltagaren själv fick förfoga över behandlingens upplägg och innehåll. Huvudkomponenten i behandlingen utgjordes av sammanlagt 16 moduler hämtade från tidigare Internetbehandlingar riktade mot social fobi, paniksyndrom, generaliserat ångestsyndrom samt depression.Behandlingsgruppen utgjordes av 27 individer som varit kontrollgrupp i en tidigare behandlingsstudie. För samtliga deltagare pågick behandlingen tio veckor. Beroendevariabler utgjordes av självskattningsformulären Clinical Outcome in Routine Evaluation ? Outcome Measure, Beck Anxiety Inventory, Montgomery Åsberg Depression Rating Scale ? Self Rated, Quality Of Life Inventory, resultat på SCID-intervjuer samt kodning av totala symtom.
Bevarande av naturvärdesträd i enlighet med FSC och Holmen Skogs naturvårdspolicy :
In the end of 1998 the company Holmen Skog AB was certified accordint to the FSC system
with an area of 1 036 000 hectare. After that Holmen Skog AB has been working actively
with the nature conservation in the forestry. In order to control the quality of the company?s
nature conservation in final fellings they started a yearly inventory which is called BAKRUS
(Judgement of ecological and culture care in relations to policies for a persevering
silviculture). After 1999 the control was expended to include all actions in the forest.
Flygbildsanalys av trädskiktets status efter brand : en metodstudie
During the past years fire has been identified as an important factor for nature conservation in the forest landscape. To accurately quantify the size of a burnt area is obviously important, but also to quantify the degree of fire damage to the tree canopy. Such data are important for assessing the conservation value, and to support planning and management of the burned area in the future.
I have examined how to estimate the status of tree crowns after fire from interpretation of aerial photographs. This is possible because fire changes the structure of tree crowns and this influences the colours in aerial photographs by spectral reflection.
Included in the study are four areas, three of which burned in 2005 and one in 2006.
Var är du? : En studie av värderingarnas inverkan på motivationen att delta i webbpaneler
Uppsatsen besvarar en uppma?rksammad problematik ro?rande statistisk tillfo?rlitlighet och representativitet i webbunderso?kningar. Detta genom att utreda en alternativ metod fo?r att angripa svarsbortfall. Tidigare studier har visat att svarsfrekvensen kan pa?verkas av att deltagare drivs av olika motivationsfaktorer, och modellen Volunteer Function Inventory (VFI) har studerats i syfte att utreda motivationssegmentering av paneldeltagare.