Alkyl C and hydrophobicity in B and C horizons of an acid forest soil

Research output: Contribution to journalArticleResearchpeer review

Authors

  • Cornelia Rumpel
  • Ariane Seraphin
  • Marc Oliver Goebel
  • Guido Wiesenberg
  • Francisco Gonzales-Vila
  • Jörg Bachmann
  • Lorenz Schwark
  • Walter Michaelis
  • André Mariotti
  • Ingrid Kögel-Knabner

External Research Organisations

  • Centre national de la recherche scientifique (CNRS)
  • Universität Hamburg
  • Spanish National Research Council (CSIC)
  • University of Cologne
  • Technical University of Munich (TUM)
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Details

Original languageEnglish
Pages (from-to)685-692
Number of pages8
JournalJournal of Plant Nutrition and Soil Science
Volume167
Issue number6
Publication statusPublished - Dec 2004

Abstract

Aliphatic C most probably derived from ester-bound moieties was found to be present in sandy subsoil horizons. The hydrophobic nature of such compounds may increase their stabilization potential. Therefore, the aim of this study was to investigate the potential of aliphatic compounds in mineral soil horizons along a Dystric Cambisol profile under beech forest to increase hydrophobicity. The conceptual approach included the analyses of soil samples before and after solvent extraction and base hydrolysis for elemental and isotopic composition. Additionally, the advancing contact angle was measured to quantify hydrophobicity. Curie-point pyrolysis GC/MS was carried out to characterize the nature of alkyl C present in subsoil samples. A close correlation between the 14C activity and the stable-C-isotope ratio (δ13C) indicates isotopic fractionation upon C stabilization in subsoils. Free lipids contributed less than 10% to the organic C found in subsoil horizons. Base hydrolysis revealed very high amounts of hydroxyalkanoic acids in the B horizons of the acid forest soil. Hydrophobicity of SOM was not found to be correlated to esterified- or free-lipid content. The contact angle was in a similar range for all bulk soil horizons, suggesting greater hydrophobicity of organic matter in subsoil horizons considering their very low concentrations of organic C compared to the A horizon. The quantity and nature of pyrolysis products change with increasing depth in the soil profile. Aliphatic products cannot be detected in B and C horizons by Curie-point pyrolysis GC/MS.

Keywords

    Alkyl, Carbon, Hydrophobicity, Subsoil

ASJC Scopus subject areas

Cite this

Alkyl C and hydrophobicity in B and C horizons of an acid forest soil. / Rumpel, Cornelia; Seraphin, Ariane; Goebel, Marc Oliver et al.
In: Journal of Plant Nutrition and Soil Science, Vol. 167, No. 6, 12.2004, p. 685-692.

Research output: Contribution to journalArticleResearchpeer review

Rumpel, C, Seraphin, A, Goebel, MO, Wiesenberg, G, Gonzales-Vila, F, Bachmann, J, Schwark, L, Michaelis, W, Mariotti, A & Kögel-Knabner, I 2004, 'Alkyl C and hydrophobicity in B and C horizons of an acid forest soil', Journal of Plant Nutrition and Soil Science, vol. 167, no. 6, pp. 685-692. https://doi.org/10.1002/jpln.200421484
Rumpel, C., Seraphin, A., Goebel, M. O., Wiesenberg, G., Gonzales-Vila, F., Bachmann, J., Schwark, L., Michaelis, W., Mariotti, A., & Kögel-Knabner, I. (2004). Alkyl C and hydrophobicity in B and C horizons of an acid forest soil. Journal of Plant Nutrition and Soil Science, 167(6), 685-692. https://doi.org/10.1002/jpln.200421484
Rumpel C, Seraphin A, Goebel MO, Wiesenberg G, Gonzales-Vila F, Bachmann J et al. Alkyl C and hydrophobicity in B and C horizons of an acid forest soil. Journal of Plant Nutrition and Soil Science. 2004 Dec;167(6):685-692. doi: 10.1002/jpln.200421484
Rumpel, Cornelia ; Seraphin, Ariane ; Goebel, Marc Oliver et al. / Alkyl C and hydrophobicity in B and C horizons of an acid forest soil. In: Journal of Plant Nutrition and Soil Science. 2004 ; Vol. 167, No. 6. pp. 685-692.
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abstract = "Aliphatic C most probably derived from ester-bound moieties was found to be present in sandy subsoil horizons. The hydrophobic nature of such compounds may increase their stabilization potential. Therefore, the aim of this study was to investigate the potential of aliphatic compounds in mineral soil horizons along a Dystric Cambisol profile under beech forest to increase hydrophobicity. The conceptual approach included the analyses of soil samples before and after solvent extraction and base hydrolysis for elemental and isotopic composition. Additionally, the advancing contact angle was measured to quantify hydrophobicity. Curie-point pyrolysis GC/MS was carried out to characterize the nature of alkyl C present in subsoil samples. A close correlation between the 14C activity and the stable-C-isotope ratio (δ13C) indicates isotopic fractionation upon C stabilization in subsoils. Free lipids contributed less than 10% to the organic C found in subsoil horizons. Base hydrolysis revealed very high amounts of hydroxyalkanoic acids in the B horizons of the acid forest soil. Hydrophobicity of SOM was not found to be correlated to esterified- or free-lipid content. The contact angle was in a similar range for all bulk soil horizons, suggesting greater hydrophobicity of organic matter in subsoil horizons considering their very low concentrations of organic C compared to the A horizon. The quantity and nature of pyrolysis products change with increasing depth in the soil profile. Aliphatic products cannot be detected in B and C horizons by Curie-point pyrolysis GC/MS.",
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AU - Rumpel, Cornelia

AU - Seraphin, Ariane

AU - Goebel, Marc Oliver

AU - Wiesenberg, Guido

AU - Gonzales-Vila, Francisco

AU - Bachmann, Jörg

AU - Schwark, Lorenz

AU - Michaelis, Walter

AU - Mariotti, André

AU - Kögel-Knabner, Ingrid

N1 - Copyright: Copyright 2008 Elsevier B.V., All rights reserved.

PY - 2004/12

Y1 - 2004/12

N2 - Aliphatic C most probably derived from ester-bound moieties was found to be present in sandy subsoil horizons. The hydrophobic nature of such compounds may increase their stabilization potential. Therefore, the aim of this study was to investigate the potential of aliphatic compounds in mineral soil horizons along a Dystric Cambisol profile under beech forest to increase hydrophobicity. The conceptual approach included the analyses of soil samples before and after solvent extraction and base hydrolysis for elemental and isotopic composition. Additionally, the advancing contact angle was measured to quantify hydrophobicity. Curie-point pyrolysis GC/MS was carried out to characterize the nature of alkyl C present in subsoil samples. A close correlation between the 14C activity and the stable-C-isotope ratio (δ13C) indicates isotopic fractionation upon C stabilization in subsoils. Free lipids contributed less than 10% to the organic C found in subsoil horizons. Base hydrolysis revealed very high amounts of hydroxyalkanoic acids in the B horizons of the acid forest soil. Hydrophobicity of SOM was not found to be correlated to esterified- or free-lipid content. The contact angle was in a similar range for all bulk soil horizons, suggesting greater hydrophobicity of organic matter in subsoil horizons considering their very low concentrations of organic C compared to the A horizon. The quantity and nature of pyrolysis products change with increasing depth in the soil profile. Aliphatic products cannot be detected in B and C horizons by Curie-point pyrolysis GC/MS.

AB - Aliphatic C most probably derived from ester-bound moieties was found to be present in sandy subsoil horizons. The hydrophobic nature of such compounds may increase their stabilization potential. Therefore, the aim of this study was to investigate the potential of aliphatic compounds in mineral soil horizons along a Dystric Cambisol profile under beech forest to increase hydrophobicity. The conceptual approach included the analyses of soil samples before and after solvent extraction and base hydrolysis for elemental and isotopic composition. Additionally, the advancing contact angle was measured to quantify hydrophobicity. Curie-point pyrolysis GC/MS was carried out to characterize the nature of alkyl C present in subsoil samples. A close correlation between the 14C activity and the stable-C-isotope ratio (δ13C) indicates isotopic fractionation upon C stabilization in subsoils. Free lipids contributed less than 10% to the organic C found in subsoil horizons. Base hydrolysis revealed very high amounts of hydroxyalkanoic acids in the B horizons of the acid forest soil. Hydrophobicity of SOM was not found to be correlated to esterified- or free-lipid content. The contact angle was in a similar range for all bulk soil horizons, suggesting greater hydrophobicity of organic matter in subsoil horizons considering their very low concentrations of organic C compared to the A horizon. The quantity and nature of pyrolysis products change with increasing depth in the soil profile. Aliphatic products cannot be detected in B and C horizons by Curie-point pyrolysis GC/MS.

KW - Alkyl

KW - Carbon

KW - Hydrophobicity

KW - Subsoil

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DO - 10.1002/jpln.200421484

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SP - 685

EP - 692

JO - Journal of Plant Nutrition and Soil Science

JF - Journal of Plant Nutrition and Soil Science

SN - 1436-8730

IS - 6

ER -

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