90 uppsatser · sida 3 av 6
… streams probably served as spawning sites for certain species of fish in the Baltic Sea, but the present situation is not well known. As standardized methods to monitor fish in running waters are carried out during late summer or autumn, there is a need for methods to sample …
beskrivning av övergödningsproblematiken samt optimering av en reningsmetod genom skörd av vattenväxter
… with the objective to optimize a method to purify the already eutrophicated Baltic Sea by harvesting water plants, mainly reed. The nutrients will then be recirculated to arable land through residues from biogas production. The amount of nutrients that can be removed by …
Eutrophication is a major problem in the Baltic Sea, as a result of increased loading of nitrogen and phosphorus. In the coastal parts of Östergötland the soil largely consists of clay and contains high levels of phosphorus bound to clay particles. Erosion of the soil in …
Eutrophication is a major problem in the Baltic Sea, as a result of increased loading of nitrogen and phosphorus. In the coastal parts of Östergötland the soil largely consists of clay and contains high levels of phosphorus bound to clay particles. Erosion of the soil in …
… above all an increase of low lake water levels. Data on past sea levels in the Baltic Sea showed high values during wintertime. In combination with future high inflow to Lake Mälaren during this season, this indicates that the greatest future flood risk may prevail during …
… paper is focuses on trade between eastern Blekinge and the other side of the Baltic Sea during the Viking Age. There are scarce tracks of trade in the area but one place, Skällenäs, is different. Here a treasure has been found with coins from England and Germany and some of the …
en jämförande studie av två aktivitetsytor på stenåldersboplatsen Ajvide
The Pitted ware dwelling site Ajvide on the west coast of Gotland in the Baltic Sea is, because of its long continuity from the late Mesolithic to the middle of the Scandinavian Bronze Age, an interesting research object concerning Stone Age in the Baltic area. In this essay, a …
en fallstudie på Kallsö
The forests in the unique archipelago of the Baltic Sea is housing many and high values. For the resident population, which has a central role in sustaining a living archipelago, the forest can contribute to the outcome. The forest also contributes to turn the archipelago into …
En vision om att återfå en balans i Östersjön genom att skörda algöverskott och använda biomassan som en framtida råvara.
The Baltic Sea is one of the world’s most polluted seas. Increased discharge of nutrients due to greater populations of people, together with a slow water exchange, creates great stress on the sea. Too much nutrients leads to increased growth of algae and causes problem in the …
… spawn. As trout fry have been caught at the mouth of the River Emån, near the Baltic Sea, researchers have speculated that some trout emigrate during their first year of life. The purpose of this study was to describe the variation in the length of time trout reside in …
… season (May to September), when most of the reproducing fish species in the Baltic sea are drawn into the area to mate and lay eggs at ground bottoms and bays. The conclusion is that laws and restrictions should be directed to this category of property owners. The use of GIS in …
Syftet med denna uppsats är att beskriva hur företag i logistikkedjan, rederi ” hamn ” åkeri, förberett sig inför de nya länderna, Lettland, Litauen och Polens inträde i den Europeiska Unionen den 1 maj 2004. Vi har även valt att undersöka vilka omvärldsanalysmetoder företagen …
Syftet med denna uppsats är att beskriva hur företag i logistikkedjan, rederi ” hamn ” åkeri, förberett sig inför de nya länderna, Lettland, Litauen och Polens inträde i den Europeiska Unionen den 1 maj 2004. Vi har även valt att undersöka vilka omvärldsanalysmetoder företagen …
Modellanalys av vattenflöde till Hörviks vattentäkt
… drainage system brings most of the water from the cultivated area into the Baltic Sea. Conclusions are that a large amount of mink farms placed in a small area contributes to the high content of nitrate in the well. Further examinations are needed to show which measures should …
… most frequently responsible for eutrophication of most fresh waters and the Baltic Sea. The waste water can be cleaned by filter materials, which have a high P-retention ability and which after saturation may be used as fertilizers. Four potentially suitable filter materials …
