Sökning: "catchment"
Visar resultat 11 - 15 av 276 avhandlingar innehållade ordet catchment.
11. Data-driven analysis of water and nutrient flows: Case of the Sava River Catchment and comparison with other regions
Sammanfattning : A growing human population and demands for food, freshwater and energy are causing extensive changes in the water and biogeochemical cycles of river catchments around the world. Addressing and investigating such changes is particularly important for transboundary river catchments, where they impose additional risk to a region’s stability. LÄS MER
12. Soil and stream water chemistry in a boreal catchment - interactions, influences of dissolved organic matter and effects of wood ash application
Sammanfattning : Two small bordering catchments in Bispgården, Central Sweden, wereinvestigated in regard to soil solution and stream water chemistry during the frostfree seasons of 2003-2007. Both catchments were drained by first order streams,Fanbergsbäcken and Gråbergsbäcken, and in Fanbergsbäckens catchment anextensive investigation of the soil and soil solution chemistry was conducted bylysimeter and centrifugation sampling. LÄS MER
13. Alpine lake sediment archives and catchment geomorphology : causal relationships and implications for paleoenvironmental reconstructions
Sammanfattning : Lake sediments are frequently used as archives of climate and environmental change. Minerogenic sediment variability in alpine lakes is often used to reconstruct past glacier and slope process activity. Alpine lake sediments can however have many different origins, which may induce errors in paleoenvironmental reconstructions. LÄS MER
14. Geographical Distribution of Disasters Caused by Natural Hazards in Data-scarce Areas : Methodological exploration on the Samala River catchment, Guatemala
Sammanfattning : An increasing trend in both the number of disasters and affected people has been observed, especially during the second half of the 20th century. The physical, economic and social impact that natural hazards have had on a global scale has prompted an increasing interest of governments, international institutions and the academia. LÄS MER
15. Nitrogen land-sea fluxes in the Baltic Sea catchment : Empirical relationships and budgets
Sammanfattning : In this thesis empirical relationships and modeling tools are used to describe the relationship between human activities and meso- and large scale riverine N fluxes from land to sea. On a large scale Paper I showed that by only having knowledge about human population size and runoff one can estimate the riverine export of DIN (r2= 0.76). LÄS MER
