Search for dissertations about: "lars håkanson"
Showing result 1 - 5 of 7 swedish dissertations containing the words lars håkanson.
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1. Predictive Modelling of Aquatic Ecosystems at Different Scales using Mass Balances and GIS
Abstract : This thesis presents models applicable for aquatic ecosystems. Geographical Information Systems (GIS) form an important part of the thesis. The dynamic mass balance models focus on nutrient fluxes, biotic/abiotic interactions and operate on different temporal and spatial scales (site, local, regional and international). READ MORE
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2. Form and Function of Coastal Areas
Abstract : Coastal waters have high biological productivity and provide goods and services with a high monetary value. Coasts are used by many different stakeholders and are often densely populated. READ MORE
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3. Quantitative Understanding and Prediction of Lake Eutrophication
Abstract : Many lakes around the world have been exposed to increased nutrient input from anthropogenic sources such as sewage discharge and runoff from fertilised agricultural areas. This has led to eutrophication, manifested as intensified algal blooms, murky waters, oxygen depleted lake bottoms, and alterations of considerable parts of the foodweb. READ MORE
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4. Appropriate Modelling Complexity: An Application to Mass Balance Modelling of Lake Vänern, Sweden
Abstract : This work is about finding an appropriate modelling complexity for a mass-balance model for phosphorus in Lake Vänern, Sweden. A statistical analysis of 30 years of water quality data shows that epilimnion and hypolimnion have different water quality and should be treated separately in a model. Further vertical division is not motivated. READ MORE
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5. Predicting Ecosystem Response from Pollution in Baltic Archipelago areas using Mass-balance Modelling
Abstract : Baltic archipelago areas have high nature values despite being polluted from various antrophogenic activities within the Baltic Sea catchment area and from long-range transport of airborne substances. The discovery of environmental problems in the Baltic Sea in the 1960s led to countermeasures that gradually gave results in reducing the toxic pollution, e. READ MORE