Molecular characteristics of permanganate- and dichromate-oxidation-resistant soil organic matter from a black-C-rich colluvial soil

Molecular characteristics of permanganate- and dichromate-oxidation-resistant soil organic matter from a black-C-rich colluvial soil

16 páginas.-- 3 figuras.-- 3 tablas.-- 85 referencias

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Bibliographic Details
Main Authors: Suárez-Abelenda, M., Kaal, Joeri, Camps Arbestain, M., Knicker, Heike, Macías Vázquez, Felipe
Other Authors: New Zealand Agricultural Greenhouse gas Research Centre
Format: artículo biblioteca
Language:English
Published: CSIRO Publishing 2014
Subjects:Charcoal, Py-GC/MS, SOM oxidation,
Online Access:http://hdl.handle.net/10261/95244
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spelling dig-irnas-es-10261-952442018-09-12T11:56:53Z Molecular characteristics of permanganate- and dichromate-oxidation-resistant soil organic matter from a black-C-rich colluvial soil Suárez-Abelenda, M. Kaal, Joeri Camps Arbestain, M. Knicker, Heike Macías Vázquez, Felipe New Zealand Agricultural Greenhouse gas Research Centre Ministry of Agriculture and Forestry (New Zealand) Charcoal Py-GC/MS SOM oxidation 16 páginas.-- 3 figuras.-- 3 tablas.-- 85 referencias Samples from a colluvial soil rich in pyrogenic material (black C, BC) in north-west Spain were subjected to K2Cr2O7 and KMnO4 oxidation and the residual soil organic matter (SOM) was NaOH-extracted and analysed using analytical pyrolysis-gas chromatography-mass spectroscopy (Py-GC/MS) and solid-state 13C cross-polarisation magic angle spinning-nuclear magnetic resonance (13C CP MAS-NMR) in order to study the susceptibility of different SOM fractions (fresh, degraded/microbial, BC and aliphatic) towards these oxidising agents. Untreated samples that were NaOH-extracted were also analysed. The Py-GC/MS and 13C NMR indicated that KMnO4 promotes the oxidation of carbohydrate products, mostly from degraded/microbial SOM and lignocellulose, causing a relative enrichment of aliphatic and aromatic structures. Residual SOM after K2Cr2O7 oxidation contained BC, N-containing BC and aliphatic structures. This was corroborated by a relatively intense resonance of aromatic C and some signal of alkyl C in 13C NMR spectra. These results confirm that dichromate oxidation residues contain a non-pyrogenic fraction mainly consisting of aliphatic structures. The contribution of M. Camps-Arbestain to this research was funded by MAF and NZAGRC. Peer reviewed 2014-04-09T09:43:29Z 2014-04-09T09:43:29Z 2014 artículo http://purl.org/coar/resource_type/c_6501 Soil Research 52(2): 164-179 (2014) http://hdl.handle.net/10261/95244 10.1071/SR13195 1838-675X en Preprint http://dx.doi.org/10.1071/SR13195 Sí open CSIRO Publishing
institution IRNAS ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-irnas-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del IRNAS España
language English
topic Charcoal
Py-GC/MS
SOM oxidation
Charcoal
Py-GC/MS
SOM oxidation
spellingShingle Charcoal
Py-GC/MS
SOM oxidation
Charcoal
Py-GC/MS
SOM oxidation
Suárez-Abelenda, M.
Kaal, Joeri
Camps Arbestain, M.
Knicker, Heike
Macías Vázquez, Felipe
Molecular characteristics of permanganate- and dichromate-oxidation-resistant soil organic matter from a black-C-rich colluvial soil
description 16 páginas.-- 3 figuras.-- 3 tablas.-- 85 referencias
author2 New Zealand Agricultural Greenhouse gas Research Centre
author_facet New Zealand Agricultural Greenhouse gas Research Centre
Suárez-Abelenda, M.
Kaal, Joeri
Camps Arbestain, M.
Knicker, Heike
Macías Vázquez, Felipe
format artículo
topic_facet Charcoal
Py-GC/MS
SOM oxidation
author Suárez-Abelenda, M.
Kaal, Joeri
Camps Arbestain, M.
Knicker, Heike
Macías Vázquez, Felipe
author_sort Suárez-Abelenda, M.
title Molecular characteristics of permanganate- and dichromate-oxidation-resistant soil organic matter from a black-C-rich colluvial soil
title_short Molecular characteristics of permanganate- and dichromate-oxidation-resistant soil organic matter from a black-C-rich colluvial soil
title_full Molecular characteristics of permanganate- and dichromate-oxidation-resistant soil organic matter from a black-C-rich colluvial soil
title_fullStr Molecular characteristics of permanganate- and dichromate-oxidation-resistant soil organic matter from a black-C-rich colluvial soil
title_full_unstemmed Molecular characteristics of permanganate- and dichromate-oxidation-resistant soil organic matter from a black-C-rich colluvial soil
title_sort molecular characteristics of permanganate- and dichromate-oxidation-resistant soil organic matter from a black-c-rich colluvial soil
publisher CSIRO Publishing
publishDate 2014
url http://hdl.handle.net/10261/95244
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