Search Results - "Gächter, René"
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Denitrification and Nitrogen Burial in Swiss Lakes
Published in Environmental science & technology (15-02-2022)“…Earth’s nitrogen (N) cycle is imbalanced because of excessive anthropogenic inputs. Freshwater lakes efficiently remove N from surface waters by transformation…”
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Correction to “Denitrification and Nitrogen Burial in Swiss Lakes”
Published in Environmental science & technology (15-11-2022)Get full text
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Oxygen consumption in seasonally stratified lakes decreases only below a marginal phosphorus threshold
Published in Scientific reports (02-12-2019)“…Areal oxygen (O 2 ) consumption in deeper layers of stratified lakes and reservoirs depends on the amount of settling organic matter. As phosphorus (P) limits…”
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Why the Phosphorus Retention of Lakes Does Not Necessarily Depend on the Oxygen Supply to Their Sediment Surface
Published in Limnology and oceanography (01-03-2003)“…In order to improve the trophic state of Lake Sempach, a eutrophied lake in central Switzerland, its external phosphorus (P) load has been decreased and its…”
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Increasing chloride concentrations in Lake Constance: characterization of sources and estimation of loads
Published in Aquatic sciences (2012)“…The chloride concentration in Lake Constance, by volume the second largest lake in Europe, has increased by a factor of 2.4 during the past 40 years. Based on…”
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Accelerated Water Quality Improvement during Oligotrophication in Peri-Alpine Lakes
Published in Environmental science & technology (17-06-2014)“…Monitoring of four eutrophic Swiss lakes undergoing oligotrophication during more than 25 years (i.e., gradually decreasing nutrient loading, productivity, and…”
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Nitrogen fertilization of soils fuels carbonate weathering and translocation in calcareous watersheds
Published in Aquatic sciences (01-04-2020)“…In calcareous watersheds, groundwater alkalinity results largely from dissolution of carbonate minerals in soils. The alkalinity increases initially…”
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Nitrogen Removal in a Small Constructed Wetland: An Isotope Mass Balance Approach
Published in Environmental science & technology (15-05-2006)“…The nitrogen (N) removal potential of constructed wetlands is increasingly used to lower the N load from agricultural nonpoint sources to inland and coastal…”
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Is Phosphorus Retention in Autochthonous Lake Sediments Controlled by Oxygen or Phosphorus?
Published in Limnology and oceanography (01-01-2006)“…Eutrophication of various lakes on the Swiss Plateau was targeted in the 1980s by reducing external nutrient loading and installing aeration/oxygenation…”
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Phosphorus retention in small constructed wetlands treating agricultural drainage water
Published in Journal of environmental quality (01-07-2005)“…The construction of artificial wetlands has become a measure increasingly applied to reduce nonpoint-source (NPS) pollution and to contribute to the…”
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11
Sources and Sinks of Nitrous Oxide (N2O) in Deep Lakes
Published in Biogeochemistry (01-09-1997)“…As reported from marine systems, we found that also in 15 prealpine lakes N2O concentrations were strongly correlated with O2 concentrations. In oxic waters…”
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Transport of Cu, Zn and Cd in a small agricultural catchment
Published in Water research (Oxford) (01-06-2000)“…Concentrations of dissolved and particulate metals (Cu, Zn and Cd) were determined in water samples collected during several rain events from the River Kleine…”
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13
Nitrogen Elimination in Two Deep Eutrophic Lakes
Published in Limnology and oceanography (01-11-1997)“…Nitrogen elimination was investigated in two eutrophic Swiss lakes with different hypolimnetic oxygen conditions. Nitrogen burial was estimated from…”
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14
Trend-oriented sampling strategy and estimation of soluble reactive phosphorus loads in streams
Published in Water resources research (01-01-2005)“…Nutrient transfer from soils to surface waters is associated with large, hydrologically induced fluctuations. Consequently, stream-based estimation of…”
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Contribution of Bacteria to Release and Fixation of Phosphorus in Lake Sediments
Published in Limnology and oceanography (01-11-1988)“…Cycling of phosphorus at the sediment-water interface is traditionally considered to be controlled by pH-and redox-dependent, abiotic processes, such as…”
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Contribution of bacteria to release and fixation of phosphorus in lake sediments
Published in Limnology and oceanography (01-11-1988)“…Cycling of phosphorus at the sediment‐water interface is traditionally considered to be controlled by pH‐ and redox‐dependent, abiotic processes, such as…”
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Alkalinity regulation in calcium carbonate-buffered lakes
Published in Limnology and oceanography (01-01-2016)“…Biogenic calcite precipitation is the removal of calcite (CaCO₃) from the epilimnion to the sediments of hard-water lakes during summer stratification, caused…”
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Nitrous Oxide Emissions to the Atmosphere from an Artificially Oxygenated Lake
Published in Limnology and oceanography (01-05-1996)“…Nitrous oxide (N-2 O) production at the sediment surface of eutrophic Lake Baldegg was quantified with three independent methods: pore-water samplers, benthic…”
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Transport of Phosphate from Soil to Surface Waters by Preferential Flow
Published in Environmental science & technology (01-07-1998)“…Enrichment of lakes with soluble reactive phosphorus (SRP) leads to their deterioration as ecosystems, recreation areas, and drinking water reservoirs. In many…”
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From Switzerland to Canada: a diary of two Swiss Postdoctoral Fellows and Richard A. Vollenweider
Published in Aquatic ecosystem health & management (01-04-2011)Get full text
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