Andosol clay re-aggregation observed at the microscale during physical organic matter fractionation

Thiago M. Inagaki; Carsten W. Mueller; Johannes Lehmann; Ingrid Kögel-Knabner

doi:10.1002/jpln.201800421

Andosol clay re-aggregation observed at the microscale during physical organic matter fractionation

Thiago M. Inagaki, Carsten W. Mueller, Johannes Lehmann, Ingrid Kögel-Knabner

Lehrstuhl für Bodenkunde

Publikation: Beitrag in Fachzeitschrift › Artikel › Begutachtung

4 Zitate (Scopus)

Abstract

The high aggregate stability of Andosols and the direct effects of sample drying led to several inconsistencies during physical soil organic matter fractionation. We have determined that NaCl addition displayed little influence on clay dispersion. At the microscale, we observed the re-aggregation of the clay fraction caused by freeze-drying. This issue was avoided by analyzing aliquots of soil suspension. Thus, we recommend reserving a small soil liquid aliquot to be subjected to microscopy analysis.

Originalsprache	Englisch
Seiten (von - bis)	145-148
Seitenumfang	4
Fachzeitschrift	Journal of Plant Nutrition and Soil Science
Jahrgang	182
Ausgabenummer	2
DOIs	https://doi.org/10.1002/jpln.201800421
Publikationsstatus	Veröffentlicht - Apr. 2019

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title = "Andosol clay re-aggregation observed at the microscale during physical organic matter fractionation",

abstract = "The high aggregate stability of Andosols and the direct effects of sample drying led to several inconsistencies during physical soil organic matter fractionation. We have determined that NaCl addition displayed little influence on clay dispersion. At the microscale, we observed the re-aggregation of the clay fraction caused by freeze-drying. This issue was avoided by analyzing aliquots of soil suspension. Thus, we recommend reserving a small soil liquid aliquot to be subjected to microscopy analysis.",

keywords = "allophane, carbon, microscopy, short range order minerals, soil dispersion",

author = "Inagaki, {Thiago M.} and Mueller, {Carsten W.} and Johannes Lehmann and Ingrid K{\"o}gel-Knabner",

note = "Publisher Copyright: {\textcopyright} 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim",

year = "2019",

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doi = "10.1002/jpln.201800421",

language = "English",

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AU - Inagaki, Thiago M.

AU - Mueller, Carsten W.

AU - Lehmann, Johannes

AU - Kögel-Knabner, Ingrid

PY - 2019/4

Y1 - 2019/4

N2 - The high aggregate stability of Andosols and the direct effects of sample drying led to several inconsistencies during physical soil organic matter fractionation. We have determined that NaCl addition displayed little influence on clay dispersion. At the microscale, we observed the re-aggregation of the clay fraction caused by freeze-drying. This issue was avoided by analyzing aliquots of soil suspension. Thus, we recommend reserving a small soil liquid aliquot to be subjected to microscopy analysis.

AB - The high aggregate stability of Andosols and the direct effects of sample drying led to several inconsistencies during physical soil organic matter fractionation. We have determined that NaCl addition displayed little influence on clay dispersion. At the microscale, we observed the re-aggregation of the clay fraction caused by freeze-drying. This issue was avoided by analyzing aliquots of soil suspension. Thus, we recommend reserving a small soil liquid aliquot to be subjected to microscopy analysis.

KW - allophane

KW - carbon

KW - microscopy

KW - short range order minerals

KW - soil dispersion

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JF - Journal of Plant Nutrition and Soil Science

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ER -

Andosol clay re-aggregation observed at the microscale during physical organic matter fractionation

Abstract

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