Short‐term crop residue amendments altered the chemodiversity and thermodynamic stability of dissolvable organic matter in paddy soil DOI Creative Commons

Shuotong Chen,

Xin Xia, Feng Xiao

et al.

European Journal of Soil Science, Journal Year: 2024, Volume and Issue: 75(6)

Published: Sept. 1, 2024

Abstract The chemodiversity and thermodynamic stability of dissolvable organic matter (DOM) in paddy soil under different crop residue managements remain unclear. Using Fourier transform ion cyclotron resonance mass spectrometry (FT‐ICR‐MS) analysis, we explored the molecular composition DOM 4 years following incorporation maize forms (air‐dried straw, manure biochar). Compared to control without amendments, increased pool size but reduced its chemodiversity, while straw biochar amendments by 0.22 0.05, respectively. Though approximately 60% compounds were shared among treatments, those distinct treatments shaped residue‐derived lignin‐like compounds. Moreover, nominal oxidation state carbon (NOSC), which corresponds energy content carbon, decreased with regardless forms. Thus, could lead higher persistence short‐term, potentially slowing turnover soil.

Language: Английский

Long-term effects of manure addition on soil organic matter molecular composition: Carbon transformation as a major driver of energetic potential DOI Creative Commons
Carsten Simon, Anja Miltner, Ines Mulder

et al.

Soil Biology and Biochemistry, Journal Year: 2025, Volume and Issue: unknown, P. 109755 - 109755

Published: Feb. 1, 2025

Language: Английский

Citations

0
Coupling energy balance and carbon flux during cellulose degradation in arable soils DOI Creative Commons

Johannes Wirsching,

Martin-Georg Endress, Eliana Di Lodovico

et al.

Soil Biology and Biochemistry, Journal Year: 2024, Volume and Issue: unknown, P. 109691 - 109691

Published: Dec. 1, 2024

Language: Английский

Citations

3
Long-term effects of farmyard manure addition on soil organic matter molecular composition: C transformation as a major driver of energetic potential DOI Creative Commons
Carsten Simon, Anja Miltner, Ines Mulder

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: June 7, 2024

Abstract Long-term addition of farmyard manure (FYM) supports the accumulation microbial C and soil organic matter (SOM), but effects on energy storage remain unknown. In particular, it remains unresolved whether FYM or stimulation transformations explains increased imprint. The latter would suggest that SOM transformation products controls storage, rather than directly. We hypothesized overlap with original signatures could be used as a measure its effect SOM's nominal oxidation state (NOSC) energetic potential ΔG0Cox. employed solid-state laser desorption ionization Fourier transform mass spectrometry (LDI-FT-ICR-MS) to study molecular samples topsoil from four long-term field experiments receiving FYM, unfertilized controls. line bulk elemental analysis, LDI-FT-ICR-MS suggested (0.7 – 1.2 kJ/mol C). changed composition by 3 - 16% ion abundance compared controls, being larger in longer-running experiments. Markers unrelated (i.e., indirect effects) explained 67 84% changes while markers directly related only 2 12%. shifted higher H/C, O/C m/z, lower aromaticity. Accumulated molecules had potentials were, despite chemically similar elevated mass, suggesting use FYM-derived building blocks for synthesis molecules. Vanishing showed potential, mirroring water-extractable matter, which pointed an solubility SOM. Our results indicate uniform shift properties upon addition, highlight role site-specific trajectories compositional change. discuss implications FYM-induced stability

Language: Английский

Citations

1
Multiple element coupling and molecular-chemical diversity of organic matter control how much energy is retained in soils in mountain ecosystems DOI

Luan Sang,

Wenwen Zhao,

Haobo Wu

et al.

CATENA, Journal Year: 2024, Volume and Issue: 247, P. 108548 - 108548

Published: Nov. 12, 2024

Language: Английский

Citations

1
Short‐term crop residue amendments altered the chemodiversity and thermodynamic stability of dissolvable organic matter in paddy soil DOI Creative Commons

Shuotong Chen,

Xin Xia, Feng Xiao

et al.

European Journal of Soil Science, Journal Year: 2024, Volume and Issue: 75(6)

Published: Sept. 1, 2024

Abstract The chemodiversity and thermodynamic stability of dissolvable organic matter (DOM) in paddy soil under different crop residue managements remain unclear. Using Fourier transform ion cyclotron resonance mass spectrometry (FT‐ICR‐MS) analysis, we explored the molecular composition DOM 4 years following incorporation maize forms (air‐dried straw, manure biochar). Compared to control without amendments, increased pool size but reduced its chemodiversity, while straw biochar amendments by 0.22 0.05, respectively. Though approximately 60% compounds were shared among treatments, those distinct treatments shaped residue‐derived lignin‐like compounds. Moreover, nominal oxidation state carbon (NOSC), which corresponds energy content carbon, decreased with regardless forms. Thus, could lead higher persistence short‐term, potentially slowing turnover soil.

Language: Английский

Citations

0