Nitrogen speciation and transformations in fire-derived organic matter.
Aromatic N heterocycles
Biochar
Fire
N content
NEXAFS
Organic C persistence
Pyrogenic organic N
Journal
Geochimica et cosmochimica acta
ISSN: 0016-7037
Titre abrégé: Geochim Cosmochim Acta
Pays: United States
ID NLM: 9876074
Informations de publication
Date de publication:
01 May 2020
01 May 2020
Historique:
entrez:
5
5
2020
pubmed:
5
5
2020
medline:
5
5
2020
Statut:
ppublish
Résumé
Vegetation fires are known to have broad geochemical effects on carbon (C) cycles in the Earth system, yet limited information is available for nitrogen (N). In this study, we evaluated how charring organic matter (OM) to pyrogenic OM (PyOM) altered the N molecular structure and affected subsequent C and N mineralization. Nitrogen near-edge X-ray absorption fine structure (NEXAFS) of uncharred OM, PyOM, PyOM toluene extract, and PyOM after toluene extraction were used to predict PyOM-C and -N mineralization potentials. PyOM was produced from three different plants (e.g. Maize-
Identifiants
pubmed: 32362680
doi: 10.1016/j.gca.2020.02.034
pii: S0016-7037(20)30157-5
pmc: PMC7171705
doi:
Types de publication
Journal Article
Langues
eng
Pagination
170-185Informations de copyright
© 2020 The Author(s).
Déclaration de conflit d'intérêts
The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
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