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1	Varför ville man bo i Lund under bronsåldern? Örum, Yngve January 2022 (has links) The purpose of my investigation is to shed light on why people chose to settle in a specific location during the Bronze Age, in this instance Lund municipality. I have restricted my investigation to eight settlements as these are the ones that have written sources. Many Bronze Age settlements are situated by the sea, although not the 8 I have highlighted in my investigation. The settlements in Lund municipality were therefore not dependent on the sea for their livelihood or transport routes. The selected source material includes written sources in the form of archaeological reports, course books and dissertations. My investigation reveals significant similarities in the factors determining the choice of settlement. The theories to be tested were the key factors I have set out as probable reasons for settling here. The settlers came to be dependent on having access to water and fertile soil as well as shelter from the wind. Almost without exception, the settlements were close to one another, at most 1.5 kilometres from the nearest neighbour. These clusters suggest cooperation in providing daily food supplies and also indicate a peaceful coexistence. It also seems that areas for socialising have been important. Another common factor is that people chose a settlement that had been previously occupied. The reasons for this may have been twofold: the very favourable conditions and the presence of ancestral graves that people felt the need to visit. Bronsåldersboplatser tidigare boplatser vatten jordmån kluster religiösa skäl kommunikation History and Archaeology Historia och arkeologi
2	Multifaceted effects of competition and plant-soil feedbacks on Achillea millefolium grown in soil from a riparian meadow : Emil Karlsson - Umeå University - Thesis project - 60 hp Karlsson, Emil January 2021 (has links) Competition between plant individuals and how plants alter soil properties are key processes which drive changes in plant communities over time. Estimating the relative importance of these processes and how they affect plant growth in different ecological contexts and communities is an active area of research. Furthermore, interdependencies between the two processes have been suggested to occur in many cases, but research in this area is also lacking. In this study, soil conditioned by common yarrow (Achillea millefolium) was collected from field plots and was then used in a growth chamber competition experiment, which controlled for plant-soil feedbacks. Measured soil properties such as soil pH, soil nitrogen, and soil texture were primarily used as background data in the experiment. Field parameters such as light availability, plant density, and grass to forbs ratio were used to predict optimal A. millefolium habitat in relation to other vascular plant species. The results indicate that A. millefolium was a weaker competitor than cornflower (Centaurea cyanus), while a positive plant-soil feedback effect was observed by A. millefolium grown in field soil. Intraspecific competition had a strong negative effect on A. millefolium growth when grown in non-conditioned soil, but not when grown in A. millefolium conditioned soil. Finally, competition and plant-soil feedbacks appeared to be additively affecting A. millefolium growth, meaning the plant-soil feedback effect did not have a disproportionate effect on competitive outcomes, or vice versa. The findings of this study can be of interest to conservationists or farmers who wish to predict how plant communities respond to plant competition and plant-soil feedbacks as processes. Plant Competition Plant soil feedback Yarrow Achillea millefolium Centaurea cyanus Soil pH Nitrate Ammonium Nitrogen Soil texture Light Sweden Height Biomass Field Growth chamber Greenhouse Ecology Relative fitness Stabilizing niche Konkurrens Jordmån Kärlväxter Röllika Blåklint Ecology Ekologi

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Varför ville man bo i Lund under bronsåldern?

Multifaceted effects of competition and plant-soil feedbacks on Achillea millefolium grown in soil from a riparian meadow : Emil Karlsson - Umeå University - Thesis project - 60 hp