Recent advances in the spectroscopic characterization of soil humic substances and their ecological relevance

authored by: Rüdiger Fründ, Georg Guggenberger, Konrad Haider, Heike Knicker, Ingrid Kögel‐Knabner, Hans‐Dietrich ‐D Lüdemann, Jörg Luster, Wolfgang Zech, Michael Spiteller
Abstract: Non destructive spectroscopic methods such as ¹³C‐ and ¹⁵N‐NMR provide new insights into the structure of humic substances. Solid state NMR is capable of studying complete native soils by the CPMAS‐technique. By means of nitrogen 15‐enriched composts it is suggested that nitrogen in soil organic matter is mainly located in amide and peptide structures. Most probable assignments are given. The investigation of humification processes in forest soils is possible via an approach which uses several fractionation techniques in combination with degradative and non‐degradative analytical techniques. Besides structure analysis, the ¹³C‐NMR‐spectroscopy provides important information about the functions of humic substances. By using ¹³C‐enriched xenobiotics the binding mechanism to organic matter can be elucidated on a molecular basis. Molecular fluorescence spectrometry, a non‐invasive method, is a powerful tool for the quantitative characterization of metal ion complexation by dissolved organic matter in aqueous leaf litter extracts in terms of conditional stability constants and metal binding capacities.
External Organisation(s): University of Regensburg
University of Bayreuth
Julius Kühn Institute - Federal Research Centre for Cultivated Plants (JKI)
Ruhr-Universität Bochum
Swiss Federal Institute for Forest, Snow and Landscape Research (WSL)
University of Kassel
Type: Article
Journal: Zeitschrift für Pflanzenernährung und Bodenkunde
Volume: 157
Pages: 175-186
No. of pages: 12
ISSN: 0044-3263
Publication date: 1994
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Soil Science
Electronic version(s): https://doi.org/10.1002/jpln.19941570305 (Access: Closed)

BibTeX

@article{9100b10e9b054d47b2131797b8404d23,
title = "Recent advances in the spectroscopic characterization of soil humic substances and their ecological relevance",
abstract = "Non destructive spectroscopic methods such as 13C‐ and 15N‐NMR provide new insights into the structure of humic substances. Solid state NMR is capable of studying complete native soils by the CPMAS‐technique. By means of nitrogen 15‐enriched composts it is suggested that nitrogen in soil organic matter is mainly located in amide and peptide structures. Most probable assignments are given. The investigation of humification processes in forest soils is possible via an approach which uses several fractionation techniques in combination with degradative and non‐degradative analytical techniques. Besides structure analysis, the 13C‐NMR‐spectroscopy provides important information about the functions of humic substances. By using 13C‐enriched xenobiotics the binding mechanism to organic matter can be elucidated on a molecular basis. Molecular fluorescence spectrometry, a non‐invasive method, is a powerful tool for the quantitative characterization of metal ion complexation by dissolved organic matter in aqueous leaf litter extracts in terms of conditional stability constants and metal binding capacities.",
author = "R{\"u}diger Fr{\"u}nd and Georg Guggenberger and Konrad Haider and Heike Knicker and Ingrid K{\"o}gel‐Knabner and L{\"u}demann, {Hans‐Dietrich ‐D} and J{\"o}rg Luster and Wolfgang Zech and Michael Spiteller",
year = "1994",
doi = "10.1002/jpln.19941570305",
language = "English",
volume = "157",
pages = "175--186",
journal = "Zeitschrift f{\"u}r Pflanzenern{\"a}hrung und Bodenkunde",
issn = "0044-3263",
publisher = "Wiley-VCH Verlag",
number = "3",
}