Molecular characterization of Black Carbon from reference soils and fire affected soils by pyrolytic, spectroscopic and thermogravimetric techniques

Molecular characterization of Black Carbon from reference soils and fire affected soils by pyrolytic, spectroscopic and thermogravimetric techniques

Comunicación oral 281-5 presentada en el citado congreso, en la Sesión 281: Symposium--Molecular Characterization of Soil Organic Matter: Implications For Soil Function: II.-- Celebrado del 12-16 de noviembre 2006, en Indianápolis, USA.

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Main Authors: González-Vila, Francisco Javier, Rosa Arranz, José M. de la, González-Pérez, José Antonio, Knicker, Heike, González-Vázquez, Rocío, López Capel, E., Manning, David A.C.
Format: comunicación de congreso biblioteca
Language:English
Published: American Society of Agronomy 2006
Online Access:http://hdl.handle.net/10261/83990
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spelling dig-irnas-es-10261-839902018-09-12T11:56:53Z Molecular characterization of Black Carbon from reference soils and fire affected soils by pyrolytic, spectroscopic and thermogravimetric techniques González-Vila, Francisco Javier Rosa Arranz, José M. de la González-Pérez, José Antonio Knicker, Heike González-Vázquez, Rocío López Capel, E. Manning, David A.C. Comunicación oral 281-5 presentada en el citado congreso, en la Sesión 281: Symposium--Molecular Characterization of Soil Organic Matter: Implications For Soil Function: II.-- Celebrado del 12-16 de noviembre 2006, en Indianápolis, USA. Despite the considerable efforts to characterize sedimentary organic carbon, and the significant improvements achieved in the analytical techniques, a large fraction of it remains biochemically uncharacterised. To this fraction belongs the so-called Black Carbon (BC), a form of refractory organic matter (ROM) produced by the incomplete combustion of fossil fuels and vegetation widely distributed in environmental matrices including soils. There are currently well-known ambiguities concerning the potential origin and occurrence of BC, which is not a pure substance but rather a “continuum” of materials with different physicochemical properties. In fact, the isolation of BC presents serious experimental constrains, and a standardized and accepted method of measuring and characterizing BC does not exist despite the urgency to improve global terrestrial and sedimentary carbon accounting and to adjust carbon fluxes. In this communication the structural features of BC from two soils (Chernozemic mollisol and Wiessenboden vertisol) and two related materials (grass and charred wood) recommended by the BC Ring-Trial were compared with those of BC from a selection of fire affected soils from Andalusian Mediterranean forests. Different analytical methods were used to characterize the BC molecular structure contained in the samples. Correspondence was observed between samples resistant to high oxidation temperature during thermogravimetric experiments and their aromatic content as estimated by the 13C NMR integration regions. Pyrolysis-GC/MS analysis was useful in detecting typical fire derived markers in BC like material rich samples. Characteristic peaks were also identified which may have a marker value to distinguish among different BC materials. Peer reviewed 2013-10-14T07:40:16Z 2013-10-14T07:40:16Z 2006 comunicación de congreso http://purl.org/coar/resource_type/c_5794 2006 International Meeting. ASA-CSSA-SSSA: (2006) http://hdl.handle.net/10261/83990 en none American Society of Agronomy Crop Science Society of America Soil Science Society of America
institution IRNAS ES
collection DSpace
country España
countrycode ES
component Bibliográfico
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databasecode dig-irnas-es
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libraryname Biblioteca del IRNAS España
language English
description Comunicación oral 281-5 presentada en el citado congreso, en la Sesión 281: Symposium--Molecular Characterization of Soil Organic Matter: Implications For Soil Function: II.-- Celebrado del 12-16 de noviembre 2006, en Indianápolis, USA.
format comunicación de congreso
author González-Vila, Francisco Javier
Rosa Arranz, José M. de la
González-Pérez, José Antonio
Knicker, Heike
González-Vázquez, Rocío
López Capel, E.
Manning, David A.C.
spellingShingle González-Vila, Francisco Javier
Rosa Arranz, José M. de la
González-Pérez, José Antonio
Knicker, Heike
González-Vázquez, Rocío
López Capel, E.
Manning, David A.C.
Molecular characterization of Black Carbon from reference soils and fire affected soils by pyrolytic, spectroscopic and thermogravimetric techniques
author_facet González-Vila, Francisco Javier
Rosa Arranz, José M. de la
González-Pérez, José Antonio
Knicker, Heike
González-Vázquez, Rocío
López Capel, E.
Manning, David A.C.
author_sort González-Vila, Francisco Javier
title Molecular characterization of Black Carbon from reference soils and fire affected soils by pyrolytic, spectroscopic and thermogravimetric techniques
title_short Molecular characterization of Black Carbon from reference soils and fire affected soils by pyrolytic, spectroscopic and thermogravimetric techniques
title_full Molecular characterization of Black Carbon from reference soils and fire affected soils by pyrolytic, spectroscopic and thermogravimetric techniques
title_fullStr Molecular characterization of Black Carbon from reference soils and fire affected soils by pyrolytic, spectroscopic and thermogravimetric techniques
title_full_unstemmed Molecular characterization of Black Carbon from reference soils and fire affected soils by pyrolytic, spectroscopic and thermogravimetric techniques
title_sort molecular characterization of black carbon from reference soils and fire affected soils by pyrolytic, spectroscopic and thermogravimetric techniques
publisher American Society of Agronomy
publishDate 2006
url http://hdl.handle.net/10261/83990
work_keys_str_mv AT gonzalezvilafranciscojavier molecularcharacterizationofblackcarbonfromreferencesoilsandfireaffectedsoilsbypyrolyticspectroscopicandthermogravimetrictechniques
AT rosaarranzjosemdela molecularcharacterizationofblackcarbonfromreferencesoilsandfireaffectedsoilsbypyrolyticspectroscopicandthermogravimetrictechniques
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