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Article
Goran Bostedt, Auteur ; Stefan Lofgren, Auteur ; Sophia Innala, Auteur ; Kevin Bishop, AuteurAcidification of soils and surface waters caused by acid deposition is still a major problem in southern Scandinavia, despite clear signs of recovery. Besides emission control, liming of lakes, streams, and wetlands is currently used to ameliora[...]
Article
Stefan Lofgren, Auteur ; Maria Kahlert, Auteur ; Mats Johansson, Auteur ; Jakob Bergengren, AuteurThe European Union (EU) member states have agreed on the Water Framework Directive. The vision is that all European waters will achieve "good" ecological status. Each member state has agreed to meet these commitments. In Sweden, the Environmenta[...]
Article
Stefan Lofgren, Auteur ; Ulf Grandin, Auteur ; Sonja Stendera, AuteurClimate change is expected to cause an increased frequency of extreme events such as heavy floods and major storms. Such stochastic events have an immediate impact on surface water quality, but the long-term effects are largely unknown. In this [...]
Article
Martyn N. Futter, Auteur ; Salar Valinia, Auteur ; Stefan Lofgren, Auteur ; Stephan J. Kohler, Auteur ; Jens Folster, AuteurLong-term (1987-2012) water quality monitoring in 36 acid-sensitive Swedish lakes shows slow recovery from historic acidification. Overall, strong acid anion concentrations declined, primarily as a result of declines in sulfate. Chloride is now [...]
Article
Carl-Magnus Morth, Auteur ; Christoph Humborg, Auteur ; Hanna Eriksson, Auteur ; Asa Danielsson, Auteur ; Miguel Rodriguez Medina, Auteur ; Stefan Lofgren, Auteur ; Dennis P. Swaney, Auteur ; Lars Rahm, AuteurWe developed for the first time a catchment model simulating simultaneously the nutrient land-sea fluxes from all 105 major watersheds within the Baltic Sea drainage area. A consistent modeling approach to all these major watersheds, i.e., a con[...]
Article
Stefan Lofgren, Auteur ; Mats Aastrup, Auteur ; Lage Bringmark, Auteur ; Hans Hultberg, Auteur ; Lotta Lewin-Pihlblad, Auteur ; Lars Lundin, Auteur ; Gunilla Pihl Karlsson, Auteur ; Bo Thunholm, AuteurRecovery from anthropogenic acidification in streams and lakes is well documented across the northern hemisphere. In this study, we use 1996-2009 data from the four Swedish Integrated Monitoring catchments to evaluate how the declining sulfur de[...]
Article
Mattias Winterdahl, Auteur ; Johan Temnerud, Auteur ; Martyn N. Futter, Auteur ; Stefan Lofgren, Auteur ; Filip Moldan, Auteur ; Kevin Bishop, AuteurShort-term variability in stream water dissolved organic carbon (DOC) concentrations is controlled by hydrology, climate and atmospheric deposition. Using the Riparian flow-concentration Integration Model (RIM), we evaluated factors controlling [...]
Article
Stefan Lofgren, Auteur ; Eva Ring, Auteur ; Claudia von Bromssen, Auteur ; Rasmus Sorensen, Auteur ; Lars Hogbom, AuteurThe effects of clear-cutting on stream-water chemistry in northern Sweden remain largely unexplored. Here we report data collected during a reference period and the first two years after logging in two typical partially harvested northern catchm[...]
