The diversity of methoxyphenols released by pyrolysis-gas chromatography as predictor of soil carbon storag

páginas.-- 5 figuras.-- 2 tablas.-- 26 referencias.-- Selected paper from the XVI Scientific Meeting of the Spanish Society of Chromatography and Related Techniques (SECyTA 2016), 2–4 November 2016, Seville, Spain.

Detalles Bibliográficos
Autores: Jiménez-González, Marco A., Álvarez, Ana María, Carral, Pilar, González-Vila, Francisco Javier, Almendros Martín, Gonzalo
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2017
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/152007
Acceso en línea:http://hdl.handle.net/10261/152007
Access Level:acceso abierto
Palabra clave:Analytical pyrolysis
Diversity index
Methoxyphenols
Soil carbon storage
Soil organic matter
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spelling The diversity of methoxyphenols released by pyrolysis-gas chromatography as predictor of soil carbon storagJiménez-González, Marco A.Álvarez, Ana MaríaCarral, PilarGonzález-Vila, Francisco JavierAlmendros Martín, GonzaloAnalytical pyrolysisDiversity indexMethoxyphenolsSoil carbon storageSoil organic matterpáginas.-- 5 figuras.-- 2 tablas.-- 26 referencias.-- Selected paper from the XVI Scientific Meeting of the Spanish Society of Chromatography and Related Techniques (SECyTA 2016), 2–4 November 2016, Seville, Spain.The variable extent to which environmental factors are involved in soil carbon storage is currently a subject of controversy. In fact, justifying why some soils accumulate more organic matter than others is not trivial. Some abiotic factors such as organo-mineral associations have classically been invoked as the main drivers for soil C stabilization. However, in this research indirect evidences based on correlations between soil C storage and compositional descriptors of the soil organic matter are presented. It is assumed that the intrinsic structure of soil organic matter should have a bearing in the soil carbon storage. This is examined here by focusing on the methoxyphenols released by direct pyrolysis from a wide variety of topsoil samples from continental Mediterranean ecosystems from Spain with different properties and carbon content. Methoxyphenols are typical signature compounds presumptively informing on the occurrence and degree of alteration of lignin in soils. The methoxyphenol assemblages (12 major guaiacyl- and syringyl-type compounds) were analyzed by pyrolysis-gas chromatography-mass spectrometry. The Shannon-Wiener diversity index was chosen to describe the complexity of this phenolic signature. A series of exploratory statistical analyses (simple regression, partial least squares regression, multidimensional scaling) were applied to analyze the relationships existing between chemical and spectroscopic characteristics and the carbon content in the soils. These treatments coincided in pointing out that significant correlations exist between the progressive molecular diversity of the methoxyphenol assemblages and the concentration of organic carbon stored in the corresponding soils. This potential of the diversity in the phenolic signature as a surrogate index of the carbon storage in soils is tentatively interpreted as the accumulation of plant macromolecules altered into microbially reworked structures not readily recognized by soil enzymes. From a quantitative viewpoint, the partial least squares regression models exclusively based on total abundances of the 12 major methoxyphenols were especially successful in forecasting soil carbon storage.Financial support by Spanish CICyT (grant CGL2013-43845-P) is gratefully acknowledged. Marco A. Jiménez-González thanks the Spanish Ministry of Economy and Competitiveness (MINECO) for funding his pre-doctoral FPI fellowship (BES-2014-069238).Peer reviewedElsevierMinisterio de Ciencia y Tecnología (España)Ministerio de Economía y Competitividad (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]201720172017info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/152007reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CGL2013-43845-Phttps://doi.org/10.1016/j.chroma.2017.05.068Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1520072026-05-22T06:33:51Z
dc.title.none.fl_str_mv The diversity of methoxyphenols released by pyrolysis-gas chromatography as predictor of soil carbon storag
title The diversity of methoxyphenols released by pyrolysis-gas chromatography as predictor of soil carbon storag
spellingShingle The diversity of methoxyphenols released by pyrolysis-gas chromatography as predictor of soil carbon storag
Jiménez-González, Marco A.
Analytical pyrolysis
Diversity index
Methoxyphenols
Soil carbon storage
Soil organic matter
title_short The diversity of methoxyphenols released by pyrolysis-gas chromatography as predictor of soil carbon storag
title_full The diversity of methoxyphenols released by pyrolysis-gas chromatography as predictor of soil carbon storag
title_fullStr The diversity of methoxyphenols released by pyrolysis-gas chromatography as predictor of soil carbon storag
title_full_unstemmed The diversity of methoxyphenols released by pyrolysis-gas chromatography as predictor of soil carbon storag
title_sort The diversity of methoxyphenols released by pyrolysis-gas chromatography as predictor of soil carbon storag
dc.creator.none.fl_str_mv Jiménez-González, Marco A.
Álvarez, Ana María
Carral, Pilar
González-Vila, Francisco Javier
Almendros Martín, Gonzalo
author Jiménez-González, Marco A.
author_facet Jiménez-González, Marco A.
Álvarez, Ana María
Carral, Pilar
González-Vila, Francisco Javier
Almendros Martín, Gonzalo
author_role author
author2 Álvarez, Ana María
Carral, Pilar
González-Vila, Francisco Javier
Almendros Martín, Gonzalo
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia y Tecnología (España)
Ministerio de Economía y Competitividad (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Analytical pyrolysis
Diversity index
Methoxyphenols
Soil carbon storage
Soil organic matter
topic Analytical pyrolysis
Diversity index
Methoxyphenols
Soil carbon storage
Soil organic matter
description páginas.-- 5 figuras.-- 2 tablas.-- 26 referencias.-- Selected paper from the XVI Scientific Meeting of the Spanish Society of Chromatography and Related Techniques (SECyTA 2016), 2–4 November 2016, Seville, Spain.
publishDate 2017
dc.date.none.fl_str_mv 2017
2017
2017
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/152007
url http://hdl.handle.net/10261/152007
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CGL2013-43845-P
https://doi.org/10.1016/j.chroma.2017.05.068
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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