Relative contribution of iron reduction to sediments organic matter mineralization in contrasting habitats of a shallow eutrophic freshwater lake

2016 ◽  
Vol 213 ◽  
pp. 904-912 ◽  
Author(s):  
Mo Chen ◽  
He-Long Jiang
Keyword(s):  
Organic Matter ◽  
Iron Reduction ◽  
Freshwater Lake ◽  
Organic Matter Mineralization ◽  
Relative Contribution ◽  
Contrasting Habitats

scholarly journals Organic matter mineralization in sediment of a coastal freshwater lake and response to salinization

2006 ◽  
Vol 70 (11) ◽  
pp. 2836-2855 ◽  
Author(s):  
Richard W. Canavan ◽  
Caroline P. Slomp ◽  
Parisa Jourabchi ◽  
Philippe Van Cappellen ◽  
Anniet M. Laverman ◽  
...  
Keyword(s):  
Organic Matter ◽  
Freshwater Lake ◽  
Organic Matter Mineralization

T4-like Phages Reveal the Potential Role of Viruses in Soil Organic Matter Mineralization

2021 ◽  
Author(s):  
Xiaomeng Wei ◽  
Tida Ge ◽  
Chuanfa Wu ◽  
Shuang Wang ◽  
Kyle Mason-Jones ◽  
...  
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Potential Role ◽  
Organic Matter Mineralization

Gasifier biochar effects on nutrient availability, organic matter mineralization, and soil fauna activity in a multi-year Mediterranean trial

2016 ◽  
Vol 215 ◽  
pp. 30-39 ◽  
Author(s):  
Evan A.N. Marks ◽  
Stefania Mattana ◽  
Josep M. Alcañiz ◽  
Emilio Pérez-Herrero ◽  
Xavier Domene
Keyword(s):  
Organic Matter ◽  
Nutrient Availability ◽  
Soil Fauna ◽  
Organic Matter Mineralization

Soil Aggregate Destruction by Ultrasonication Increases Soil Organic Matter Mineralization and Mobility

2012 ◽  
Vol 76 (5) ◽  
pp. 1634-1643 ◽  
Author(s):  
Carsten W. Mueller ◽  
Svetlana Schlund ◽  
Jörg Prietzel ◽  
Ingrid Kögel-Knabner ◽  
Martin Gutsch
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Soil Aggregate ◽  
Organic Matter Mineralization

Barley genotype influences stabilization of rhizodeposition-derived C and soil organic matter mineralization

2016 ◽  
Vol 95 ◽  
pp. 60-69 ◽  
Author(s):  
Lumbani Mwafulirwa ◽  
Elizabeth M. Baggs ◽  
Joanne Russell ◽  
Timothy George ◽  
Nicholas Morley ◽  
...  
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Barley Genotype ◽  
Organic Matter Mineralization

scholarly journals Assessing the Contribution of Seasonality, Tides, and Microbial Processing to Dissolved Organic Matter Composition Variability in a Southeastern U.S. Estuary

2021 ◽  
Vol 8 ◽  
Author(s):  
Rachel P. Martineac ◽  
Alexey V. Vorobev ◽  
Mary Ann Moran ◽  
Patricia M. Medeiros
Keyword(s):  
Organic Matter ◽  
Dissolved Organic Matter ◽  
Critical Role ◽  
Bacterial Cells ◽  
Secondary Importance ◽  
Relative Contribution ◽  
Doc Concentration ◽  
Compositional Changes ◽  
Dom Composition

Uncovering which biogeochemical processes have a critical role controlling dissolved organic matter (DOM) compositional changes in complex estuarine environments remains a challenge. In this context, the aim of this study is to characterize the dominant patterns of variability modifying the DOM composition in an estuary off the Southeastern U.S. We collected water samples during three seasons (July and October 2014 and April 2015) at both high and low tides and conducted short- (1 day) and long-term (60 days) dark incubations. Samples were analyzed for bulk DOC concentration, and optical (CDOM) and molecular (FT-ICR MS) compositions and bacterial cells were collected for metatranscriptomics. Results show that the dominant pattern of variability in DOM composition occurs at seasonal scales, likely associated with the seasonality of river discharge. After seasonal variations, long-term biodegradation was found to be comparatively more important in the fall, while tidal variability was the second most important factor correlated to DOM composition in spring, when the freshwater content in the estuary was high. Over shorter time scales, however, the influence of microbial processing was small. Microbial data revealed a similar pattern, with variability in gene expression occurring primarily at the seasonal scale and tidal influence being of secondary importance. Our analyses suggest that future changes in the seasonal delivery of freshwater to this system have the potential to significantly impact DOM composition. Changes in residence time may also be important, helping control the relative contribution of tides and long-term biodegradation to DOM compositional changes in the estuary.

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