Search Results - "Köhler, S. J."

Long-term patterns in dissolved organic carbon, major elements and trace metals in boreal headwater catchments: trends, mechanisms and heterogeneity by Oni, S. K, Futter, M. N, Bishop, K, Köhler, S. J, Ottosson-Löfvenius, M, Laudon, H

“…The boreal landscape is a complex, spatio-temporally varying mosaic of forest and mire landscape elements that control surface water hydrology and chemistry…”
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Riparian zone control on base cation concentration in boreal streams by Ledesma, J. L. J, Grabs, T, Futter, M. N, Bishop, K. H, Laudon, H, Köhler, S. J

“…Riparian zones (RZ) are a major factor controlling water chemistry in forest streams. Base cations' (BC) concentrations, fluxes, and cycling in the RZ merit…”
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Climate's control of intra-annual and interannual variability of total organic carbon concentration and flux in two contrasting boreal landscape elements by Köhler, S. J., Buffam, I., Laudon, H., Bishop, K. H.

“…Large spatial and temporal variations in stream total organic carbon (TOC) concentration and export occurred during an 11‐year observation period (1993–2003)…”
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Tracking changes in the optical properties and molecular composition of dissolved organic matter during drinking water production by Lavonen, E.E., Kothawala, D.N., Tranvik, L.J., Gonsior, M., Schmitt-Kopplin, P., Köhler, S.J.

“…Absorbance, 3D fluorescence and ultrahigh resolution electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry (ESI-FT-ICR-MS) were…”
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Natural organic matter fractions and their removal in full-scale drinking water treatment under cold climate conditions in Nordic capitals by Krzeminski, P., Vogelsang, C., Meyn, T., Köhler, S.J., Poutanen, H., de Wit, H.A., Uhl, W.

“…Drinking water treatment plants (DWTPs) designed to remove natural organic matter (NOM) are challenged as concentrations of NOM in raw waters are increasing…”
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Spatial and temporal variations of base cation release from chemical weathering on a hillslope scale by Erlandsson, M., Oelkers, E.H., Bishop, K., Sverdrup, H., Belyazid, S., Ledesma, J.L.J., Köhler, S.J.

“…Cation release rates to catchment runoff from chemical weathering were assessed using an integrated catchment model that included the soil's unsaturated,…”
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Regulation of stream water dissolved organic carbon (DOC) concentrations during snowmelt; the role of discharge, winter climate and memory effects by Ågren, A., Haei, M., Köhler, S. J., Bishop, K., Laudon, H.

“…Using a 15 year stream record from a northern boreal catchment, we demonstrate that the inter-annual variation in dissolved organic carbon (DOC) concentrations…”
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Simulating Dissolved Organic Carbon Dynamics at the Swedish Integrated Monitoring Sites with the Integrated Catchments Model for Carbon, INCA-C by Futter, M. N, Löfgren, S, Köhler, S. J, Lundin, L, Moldan, F, Bringmark, L

“…Surface water concentrations of dissolved organic carbon ([DOC]) are changing throughout the northern hemisphere due to changes in climate, land use and acid…”
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Effects of aerobic exercise training on cognitive function and cortical vascularity in monkeys by Rhyu, I.J, Bytheway, J.A, Kohler, S.J, Lange, H, Lee, K.J, Boklewski, J, McCormick, K, Williams, N.I, Stanton, G.B, Greenough, W.T, Cameron, J.L

“…Abstract This study examined whether regular exercise training, at a level that would be recommended for middle-aged people interested in improving fitness…”
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Lead, zinc, and chromium concentrations in acidic headwater streams in Sweden explained by chemical, climatic, and land-use variations by Huser, B. J, Fölster, J, Köhler, S. J

“…Long-term data series (1996–2009) for eleven acidic headwater streams (< 10 km2) in Sweden were analyzed to determine factors controlling concentrations of…”
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Uncertainty in silicate mineral weathering rate estimates: source partitioning and policy implications by Futter, M N, Klaminder, J, Lucas, R W, Laudon, H, Köhler, S J

“…Precise and accurate estimates of silicate mineral weathering rates are crucial when setting policy targets for long-term forest sustainability, critical load…”
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Dynamics of stream water TOC concentrations in a boreal headwater catchment: Controlling factors and implications for climate scenarios by Köhler, S.J., Buffam, I., Seibert, J., Bishop, K.H., Laudon, H.

“…Two different but complementary modelling approaches for reproducing the observed dynamics of total organic carbon (TOC) in a boreal stream are presented. One…”
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Silicate mineral weathering rate estimates: Are they precise enough to be useful when predicting the recovery of nutrient pools after harvesting? by Klaminder, J., Lucas, R.W., Futter, M.N., Bishop, K.H., Köhler, S.J., Egnell, G., Laudon, H.

“…▶ Forestry practices may significantly alter cation levels in soil and surface waters. ▶ The precision of weathering rate estimates are lower than commonly…”
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Temporal and spatial trends for trace metals in streams and rivers across Sweden (1996–2009) by Huser, B. J., Köhler, S. J., Wilander, A., Johansson, K., Fölster, J.

“…Long term data series (1996 through 2009) for trace metals were analyzed from a large number of streams and rivers across Sweden varying in tributary watershed…”
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Assessment of Uncertainty in Long-Term Mass Balances for Acidification Assessments: A MAGIC Model Exercise by Köhler, S. J, Zetterberg, T, Futter, M. N, Fölster, J, Löfgren, S

“…Long-term (1860–2010) catchment mass balance calculations rely on models and assumptions which are sources of uncertainty in acidification assessments. In this…”
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The Full Annual Carbon Balance of Boreal Forests Is Highly Sensitive to Precipitation by Öquist, M. G, Bishop, K, Grelle, A, Klemedtsson, L, Köhler, S. J, Laudon, H, Lindroth, A, Ottosson Löfvenius, M, Wallin, M. B, Nilsson, M. B

“…The boreal forest carbon balance is predicted to be particularly sensitive to climate change. Carbon balance estimates of these biomes stem mainly from…”
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Automated single-voxel proton MRS: technical development and multisite verification by Webb, P G, Sailasuta, N, Kohler, S J, Raidy, T, Moats, R A, Hurd, R E

“…To improve clinical utility, an integrated method has been developed to automatically acquire and process single-voxel in vivo proton spectra on a 1.5 T…”
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Reviews and syntheses: Biological weathering and its consequences at different spatial levels – from nanoscale to global scale by Finlay, Roger D, Mahmood, Shahid, Rosenstock, Nicholas, Bolou-Bi, Emile B, Köhler, Stephan J, Fahad, Zaenab, Rosling, Anna, Wallander, Håkan, Belyazid, Salim, Bishop, Kevin, Lian, Bin

“…Plant nutrients can be recycled through microbial decomposition of organic matter but replacement of base cations and phosphorus, lost through harvesting of…”
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From soil water to surface water – how the riparian zone controls element transport from a boreal forest to a stream by Lidman, Fredrik, Boily, Åsa, Laudon, Hjalmar, Köhler, Stephan J

“…Boreal headwaters are often lined by strips of highly organic soils, which are the last terrestrial environment to leave an imprint on discharging groundwater…”
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The impact of wildfire on biogeochemical fluxes and water quality in boreal catchments by Granath, Gustaf, Evans, Christopher D, Strengbom, Joachim, Fölster, Jens, Grelle, Achim, Strömqvist, Johan, Köhler, Stephan J

“…Wildfires are the major disturbance in boreal ecosystems and are of great importance for the biogeochemical cycles of carbon (C) and nutrients. However, these…”
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