Search Results - "BLODAU, CHRISTIAN"

Arsenic distribution in the dissolved, colloidal and particulate size fraction of experimental solutions rich in dissolved organic matter and ferric iron by Bauer, Markus, Blodau, Christian

“…Due to the widespread contamination of groundwater resources with arsenic (As), controls on As mobility have to be identified. In this study we focused on the…”
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Mobilization of arsenic by dissolved organic matter from iron oxides, soils and sediments by Bauer, Markus, Blodau, Christian

“…The arsenic contamination of aquifers has been linked to the input of dissolved organic matter (DOM). In light of this suggestion, the aim of this study was to…”
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Impact of experimental drought and rewetting on redox transformations and methanogenesis in mesocosms of a northern fen soil by Knorr, Klaus-Holger, Blodau, Christian

“…The impact of climate change on the greenhouse gas balance of peatlands is debated as they function both as sinks of carbon and significant sources of methane…”
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Electron transfer of dissolved organic matter and its potential significance for anaerobic respiration in a northern bog by HEITMANN, TOBIAS, GOLDHAMMER, TOBIAS, BEER, JULIA, BLODAU, CHRISTIAN

“…We investigated electron transfer processes of dissolved organic matter (DOM) and their potential importance for anaerobic heterotrophic respiration in a…”
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Carbon cycling in peatlands — A review of processes and controls by Blodau, C

“…Covering only 3% of the land area, northern peatlands store about 30% of the global soil carbon and account for 5 to 10% of the global methane burden to the…”
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A 1-year greenhouse gas budget of a peatland exposed to long-term nutrient infiltration and altered hydrology: high carbon uptake and methane emission by Berger, Sina, Braeckevelt, Elisa, Blodau, Christian, Burger, Magdalena, Goebel, Marie, Klemm, Otto, Knorr, Klaus-Holger, Wagner-Riddle, Claudia

“…Long-term increased nutrient influx into normally nutrient-limited peatlands in combination with altered hydrological conditions may threaten a peatland’s…”
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Controls on schwertmannite transformation rates and products by Knorr, Klaus-Holger, Blodau, Christian

“…To study the impact of geochemical conditions on the fate of schwertmannite in AMD polluted sediments, pH, concentrations of SO 4 2 - and DOC, and temperature…”
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Support for an anaerobic sulfur cycle in two Canadian peatland soils by Blodau, Christian, Mayer, Bernhard, Peiffer, Stefan, Moore, Tim R.

“…Sulfur cycling in peatlands may affect global CH4 emissions by suppression of methanogenesis through bacterial sulfate reduction (BSR). We sought evidence for…”
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Arsenic speciation and turnover in intact organic soil mesocosms during experimental drought and rewetting by Blodau, Christian, Fulda, Beate, Bauer, Markus, Knorr, Klaus-Holger

“…Wetlands are significant sources and sinks for arsenic (As), yet the geochemical conditions and processes causing a release of dissolved arsenic and its…”
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Belowground carbon turnover in a temperate ombrotrophic bog by Blodau, Christian, Roulet, Nigel T., Heitmann, Tobias, Stewart, Heather, Beer, Julia, Lafleur, Peter, Moore, Tim R.

“…To examine belowground carbon (C) turnover in peatlands, we measured fluxes of carbon dioxide (CO2) and methane (CH4) by chamber measurements, estimated…”
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Comparison of Atmospheric Travel Distances of Several PAHs Calculated by Two Fate and Transport Models (The Tool and ELPOS) with Experimental Values Derived from a Peat Bog Transect by Thuens, Sabine, Blodau, Christian, Wania, Frank, Radke, Michael

“…Multimedia fate and transport models are used to evaluate the long range transport potential (LRTP) of organic pollutants, often by calculating their…”
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Landscape controls of CH₄ fluxes in a catchment of the forest tundra ecotone in northern Siberia by FLESSA, HEINER, RODIONOV, ANDREJ, GUGGENBERGER, GEORG, FUCHS, HANS, MAGDON, PAUL, SHIBISTOVA, OLGA, ZRAZHEVSKAYA, GALINA, MIKHEYEVA, NATALIA, KASANSKY, OLEG A, BLODAU, CHRISTIAN

“…Terrestrial ecosystems in northern high latitudes exchange large amounts of methane (CH₄) with the atmosphere. Climate warming could have a great impact on CH₄…”
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A review of acidity generation and consumption in acidic coal mine lakes and their watersheds by Blodau, Christian

“…Lakes developing in former coal mine pits are often characterized by high concentrations of sulfate and iron and low pH. The review focuses on the causes for…”
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Desiccation and product accumulation constrain heterotrophic anaerobic respiration in peats of an ombrotrophic temperate bog by Goldhammer, Tobias, Blodau, Christian

“…To gain insight into the effects of drying and rewetting events on anaerobic respiration in ombrotrophic peat soils, we investigated bacterial sulfate (SO 4)…”
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Experimental response of peatland carbon dynamics to a water table fluctuation by Blodau, Christian, Moore, Tim R.

“…Water table fluctuations influence the carbon balance of wetlands, but the effects are difficult to isolate and quantify in field investigations. Thus, we…”
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Experimental inflow of groundwater induces a “biogeochemical regime shift” in iron-rich and acidic sediments by Blodau, Christian, Knorr, Klaus-Holger

“…In acid mine drainage (AMD) polluted lakes, sediments may show a stable iron‐ or sulphate‐reducing regime. We tested the hypothesis that increased inflow of…”
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The fate of ¹⁵N-nitrate in a northern peatland impacted by long term experimental nitrogen, phosphorus and potassium fertilization by Xing, Yangping, Bubier, Jill, Moore, Tim, Murphy, Meaghan, Basiliko, Nathan, Wendel, Sybille, Blodau, Christian

“…Information about the impact of nitrogen (N) deposition on the fate of deposited N in peatland ecosystems is lacking. Thus we investigated the fate of…”
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Humic acid addition lowers methane release in peats of the Mer Bleue bog, Canada by Blodau, Christian, Deppe, Marianna

“…The effects of humic substances on methanogenesis in peats are poorly understood. In incubation experiments we added Pahokee Peat Humic Acid (DOM), a…”
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The fate of experimentally deposited nitrogen in mesocosms from two Canadian peatlands by Blodau, Christian, Basiliko, Nathan, Mayer, Bernhard, Moore, Tim R.

“…In large regions of Europe and North America, peatlands have been exposed to elevated rates of atmospheric nitrogen (N) deposition. We investigated the fate of…”
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A snapshot of CO2 and CH4 evolution in a thermokarst pond near Igarka, northern Siberia by Blodau, Christian, Rees, Rainer, Flessa, Heiner, Rodionov, Andrej, Guggenberger, Georg, Knorr, Klaus-Holger, Shibistova, Olga, Zrazhevskaya, Galina, Mikheeva, Natalia, Kasansky, Oleg A.

“…Thermokarst wetlands and ponds in the subarctic, which are located in land surface depressions resulting from permafrost melt, are strong sources of CH4, but…”
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