Can I read Nature and Accessibility of Organic Matter in Lacustrine Sediment on EtoBox?

Nature and Accessibility of Organic Matter in Lacustrine Sediment by Sylvain Bascle; Isabelle Bourven; Michel Baudu is a Environmental Science article available to read on EtoBox.

What is Nature and Accessibility of Organic Matter in Lacustrine Sediment about?

Purpose Organic matter (OM) in reservoir sediment consists of a range of biomolecules, but their individual contribution to the biogeochemical cycling of carbon and nitrogen nutrients is not documented. This work proposes to investigate whether the nature of the OM determines its accessibility in lacustrine sediment matrix. ## Methods We adapted an OM chemical sequential method developed for soils (particle size ≤ 20 μm) for use on sediments collected from four reservoirs (particle size ≤ 2 mm), coupled with a carbon and nitrogen elementary analysis and colorimetric quantification. Results This method allowed for the extraction of more than 70% of carbon and 61% of nitrogen. This OM includes exchangeable, extractable, free particulate, and residual OM, whose carbon content represented < 2%, 64 to 86%, 4 to 16%, and 9 to 24%, respectively. The sum of chemically extracted biochemical molecules that recover the extracted elementary carbon and nitrogen represents the chemically extracted OM. Phenols are the main carbon contributor (55 to 60%), followed by carbohydrates and proteins (14 to 18% and 21 to 29%, respectively). Nitrogen is mainly composed of proteins, amino acids, and ammoni

Who reads Nature and Accessibility of Organic Matter in Lacustrine Sediment?

Author

Sylvain Bascle; Isabelle Bourven; Michel Baudu

Publisher

Springer Science and Business Media LLC

Published

2021

Language

EN

Field

Environmental Science (Physical Sciences)