Soil organic matter chemistry changes upon secondary succession in Imperata Grasslands, Indonesia: A pyrolysis–GC/MS study

Yassir, Ishak; Buurman, P.

doi:10.1016/j.geoderma.2011.12.024

Cited by 36 publications

(16 citation statements)

References 46 publications

(56 reference statements)

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“…They are considered to originate from plant, fungal and/or microbial materials. They consist of furans, lactones (furanones), cyclic ketones (cyclopentanones) and anhydrosugars (Gregorich et al, 1996;Yassir and Buurman, 2012). The most abundant polysaccharide-derived compounds in the studied samples were furans (furan, 3-methyl-; benzofuran; 2-furancarboxaldehyde, 5-methyl-; furan, 2-(1-pentenyl)-; 1H-Inden-1-one, 2,3-dihydrotetramethyl-), anhydrosugars (D-allose) and furfural.…”

Section: Organic Matter Composition In Topsoil and Eroded Sedimentsmentioning

confidence: 99%

Molecular characterization of wildfire impacts on organic matter in eroded sediments and topsoil in Mediterranean eucalypt stands

Faria

Rosa

Knicker

et al. 2015

CATENA

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Section: Organic Matter Composition In Topsoil and Eroded Sedimentsmentioning

confidence: 99%

Molecular characterization of wildfire impacts on organic matter in eroded sediments and topsoil in Mediterranean eucalypt stands

Faria

Rosa

Knicker

et al. 2015

CATENA

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“…For instance, coarse and fine fractions (>53 µm) of SOM typically contain more plant-derived materials and have higher C:N ratio than the mineral-associated fraction, which is dominated by an admixture of microbial-processed products [4,16]. However, only a partial picture of SOM molecular composition has been yielded and there still exist knowledge gaps on the identification and quantification of some other products such as N-containing compounds, tannins and benzofurans [19,21]. Compared with other analytical techniques, pyrolysis-gas chromatography/mass spectrometry (py-GC/MS) is more efficient and can provide a larger view of SOM chemical structural information [19,22].…”

mentioning

confidence: 99%

Different Molecular Characterization of Soil Particulate Fractions under N Deposition in a Subtropical Forest

Geng

Cheng

Han

et al. 2019

Forests

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Key Findings: Combining physical fractionation and pyrolysis–gas chromatography/mass spectrometry (py-GC/MS) technique can help better understand the dynamics of soil organic matter (SOM). Background and Objectives: SOM plays a critical role in the global carbon (C) cycle. However, its complexity remains a challenge in characterizing chemical molecular composition within SOM and under nitrogen (N) deposition. Materials and Methods: Three particulate organic matter (POM) fractions within SOM and under N treatments were studied from perspectives of distributions, C contents and chemical signatures in a subtropical forest. N addition experiment was conducted with two inorganic N forms (NH4Cl and NaNO3) applied at three rates of 0, 40, 120 kg N ha−1 yr−1. Three particle-size fractions (>250 μm, 53–250 μm and <53 μm) were separated by a wet-sieving method. Py-GC/MS technique was used to differentiate between chemical composition. Results: A progressive proportion transfer of mineral-associated organic matter (MAOM) to fine POM under N treatment was found. Only C content in fine POM was sensitive to N addition. Principal component analyses (PCA) showed that the coarse POM had the largest plant-derived markers (lignins, phenols, long-chain n-alkanes, and n-alkenes). Short-chain n-alkanes and n-alkenes, benzofurans, aromatics and polycyclic aromatic hydrocarbons mainly from black carbon prevailed in the fine POM. N compounds and polysaccharides from microbial products dominated in the MAOM. Factor analysis revealed that the degradation extent of three fractions was largely distinct. The difference in chemical structure among three particulate fractions within SOM was larger than treatments between control and N addition. In terms of N treatment impact, the MAOM fraction had fewer benzofurans compounds and was enriched in polysaccharides, indicating comparatively weaker mineralization and stronger stabilization of these substances. Conclusions: Our findings highlight the importance of chemical structure in SOM pools and help to understand the influence of N deposition on SOM transformation.

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“…2012a), which suggests a high thermal impact of the samples analysed here. A relative decrease in average chain length in pyrolysis fingerprints can also result from preferential decay of the precursors of long‐chain n ‐alkanes/ n ‐alkenes during biological degradation in soil (Yassir and Buurman ), but this is probably a relative enrichment and not a true chain‐length shortening reaction, and has a less profuse effect on average chain length. Some uncertainty on the chain‐length distribution of the aliphatic components remains, as PY‐GC/MS may cause significant rearrangements.…”

Section: Resultsmentioning

confidence: 99%

How Useful is Pyrolysis‐GC/MS for the Assessment of Molecular Properties of Organic Matter in Archaeological Pottery Matrix? An Exploratory Case Study from North‐West Spain

et al. 2013

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We applied pyrolysis-GC/MS to archaeological potsherds from prehistoric settlements in north-west Spain, some of which are conspicuously black or exhibit a black inner core from incomplete burn-out. Virtually all pyrolysis products could be related to thermally modified material (partially polycondensed aromatics and short-chain alkyl moieties) that most probably formed during firing (as opposed to cooking). Principal component analysis and supporting evidence (elemental composition, colour parameters and SEM microscopy) showed that the firing conditions (redox conditions and firing intensity) control pyrolysate composition. Laboratory experiments are required to fully understand the pyrolysis fingerprints and sample pre-treatment might enhance the information obtained.

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Soil organic matter chemistry changes upon secondary succession in Imperata Grasslands, Indonesia: A pyrolysis–GC/MS study

Cited by 36 publications

References 46 publications

Molecular characterization of wildfire impacts on organic matter in eroded sediments and topsoil in Mediterranean eucalypt stands

Molecular characterization of wildfire impacts on organic matter in eroded sediments and topsoil in Mediterranean eucalypt stands

Different Molecular Characterization of Soil Particulate Fractions under N Deposition in a Subtropical Forest

How Useful is Pyrolysis‐GC/MS for the Assessment of Molecular Properties of Organic Matter in Archaeological Pottery Matrix? An Exploratory Case Study from North‐West Spain

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