Marloes Groeneveld

Dissolved Organic Matter Composition and Mineral Characteristics Jointly Control Adsorption Processes

Mona Abbasi, Marloes Groeneveld, Klaus Kaiser, Karsten Kalbitz et autres

Abstract Adsorption of dissolved organic matter (DOM) onto mineral surfaces plays a critical role in the global carbon cycle, influencing carbon stability and sequestration across terrestrial and aquatic ecosystems. Currently, it remains unclear if mineral properties or DOM composition are more relevant …

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Dissolved Organic Matter Composition and Mineral Characteristics both Control Adsorption Processes

Mona Abbasi, Marloes Groeneveld, Klaus Kaiser, Karsten Kalbitz et autres

Adsorption of dissolved organic matter (DOM) onto minerals plays a critical role in the global carbon cycle, influencing carbon stability and sequestration across terrestrial and aquatic ecosystems. Currently, it remains unclear if mineral properties or DOM composition are more relevant for predicting …

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Determining Exchangeable Base Cations in Forest Soils: A Comparison of Three Methods

Jon Petter Gustafsson, Marloes Groeneveld, Erik Karltun, Christofer Engberg Hydén et autres

ABSTRACT Background Accurately determining exchangeable base cations is critical for assessing base cation depletion in acid forest soils, where various extraction methods may yield different results. Aim The aim was to quantify differences in the effectiveness of BaCl 2 , NH 4 …

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The colloidal fraction of dissolved organic matter extracted from a forest soil persists microbial decomposition

Erika Andersson, Marloes Groeneveld, Lars J. Tranvik, Anders Tunlid et autres

Abstract We have investigated the bacterial decomposition of dissolved organic matter (DOM) extracted from the organic layer of a boreal forest soil and filtered at a pore size of 0.2 µm. This DOM source has previously been extensively characterized and contains approximately …

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Bacterial decomposition of dissolved organic matter: including the colloidal perspective

Erika Andersson, Lars J. Tranvik, Marloes Groeneveld, Anders Tunlid et autres

Dissolved organic matter (DOM) is a major carbon pool and considered the most bioavailable and most mobile fraction of organic matter. DOM is generally defined as the organic matter passing a filter pore size of 0.2 or 0.45 µm, and this size …

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Decreasing Photoreactivity and Concurrent Change in Dissolved Organic Matter Composition With Increasing Inland Water Residence Time

Charlotte Grasset, Kristjana Einarsdóttir, Núria Catalán, Lars J. Tranvik et autres

Abstract Photochemical degradation of dissolved organic matter (DOM) has been the subject of numerous studies; however, its regulation along the inland water continuum is still unclear. We aimed to unravel the DOM photoreactivity and concurrent DOM compositional changes across 30 boreal aquatic …

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Decreasing Photoreactivity and Concurrent Change in Dissolved Organic Matter Composition with Increasing Inland Water Residence Time

Charlotte Grasset, Karólína Einarsdóttir, Núria Catalán, Lars J. Tranvik et autres

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Hydrophilic Species Are the Most Biodegradable Components of Freshwater Dissolved Organic Matter

Charlotte Grasset, Marloes Groeneveld, Lars J. Tranvik, Luke P. Robertson et autres

Aquatic dissolved organic matter (DOM) is a crucial component of the global carbon cycle, and the extent to which DOM escapes mineralization is important for the transport of organic carbon from the continents to the ocean. DOM persistence strongly depends on its …

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Hydrophilic species are the most reactive components of freshwater dissolved organic matter

Charlotte Grasset, Marloes Groeneveld, Lars J. Tranvik, Luke P. Robertson et autres

Abstract Aquatic dissolved organic matter (DOM) is a crucial component of the global carbon cycle, and the extent to which DOM escapes mineralization is important for the transport of organic carbon from the continents to the ocean. DOM persistence strongly depends on …

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ADSORPTION CONTROLS ON THE COMPOSITION AND BIOLOGICAL REACTIVITY OF ORGANIC MATTER IN TERRESTRIAL AND AQUATIC ENVIRONMENTS

Mona Abbasi, Marloes Groeneveld, Liam Heffernan, Anne M. Kellerman et autres

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Seasonally variable interactions between dissolved organic matter and mineral particles in an agricultural river

Marloes Groeneveld, Dolly N. Kothawala, Lars J. Tranvik

Abstract Streams and rivers form an important link in the global carbon cycle by transporting and transforming large amounts of carbon imported from terrestrial ecosystems to the oceans. Since streams in agricultural areas often experience increased concentrations of suspended mineral particles from …

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The influence of pH on dissolved organic matter fluorescence in inland waters

Marloes Groeneveld, Núria Catalán, Karólína Einarsdóttir, Andrea Garcia Bravo et autres

Fluorescence is an easily available analytical technique used to assess the optical characteristics of dissolved organic matter (DOM). Despite widespread use, there has been some confusion about how robust fluorescence spectroscopy is to differences in solution pH. Here we assess fluorescence characteristics …

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