Titre:	Multi-elemental analysis for the determination of the geographic origin of tropical timber from the Brazilian Legal Amazon
Auteur(s):	Gomes, Marcos David Gusmão Costa, Fábio José Viana Nascentes, Clesia Cristina Martinelli, Luiz Antônio Nardoto, Gabriela Bielefeld
metadata.dc.identifier.orcid:	https://orcid.org/0000-0002-1001-5009 https://orcid.org/0000-0003-1597-7079 https://orcid.org/0000-0002-7103-7551 https://orcid.org/0000-0001-8062-7417
metadata.dc.contributor.affiliation:	University of Brasilia, Institute of Biological Sciences, Department of Ecology National Institute of Criminalistics, Brazilian Federal Police National Institute of Criminalistics, Brazilian Federal Police Federal University of Minas Gerais, Department of Chemistry University of São Paulo, Center for Nuclear Energy in Agriculture, Piracicaba University of Brasilia, Institute of Biological Sciences, Department of Ecology
Assunto::	Exploração ilegal de madeira Rastreabilidade da madeira
Date de publication:	6-aoû-2025
Editeur:	MDPI
Référence bibliographique:	GOMES, Marcos David Gusmão et al. Multi-elemental analysis for the determination of the geographic origin of tropical timber from the Brazilian Legal Amazon. Forests, v. 16, n. 8, 1284, 2025. DOI: https://doi.org/10.3390/f16081284. Disponível em: https://www.mdpi.com/1999-4907/16/8/1284. Acesso em: 22 jan. 2026.
Abstract:	Illegal logging is a major threat to tropical forests; however, control mechanisms and efforts to combat illegal logging have not effectively curbed fraud in the production chain, highlighting the need for effective methods to verify the geographic origin of timber. This study investigates the application of multi-elemental analysis combined with Principal Component Analysis (PCA) to discriminate the provenance of tropical timber in the Brazilian Legal Amazon. Wood samples of Hymenaea courbaril L. (Jatobá), Handroanthus sp. (Ipê), and Manilkara huberi (Ducke) A. Chevalier. (Maçaranduba) were taken from multiple sites. Elemental concentrations were determined via Inductively Coupled Plasma Mass Spectrometry (ICP-MS), and CA was applied to evaluate geographic differentiation. Significant differences in elemental profiles were found among locations, particularly when using the intermediate disk portions (25% to 75%), and especially the average of all five sampled portions, which proved most effective in geographic discrimination of the trunk. Elements such as Ca, Sr, Cr, Cu, Zn, and B were especially important for spatial discrimination. These findings underscore the forensic potential of multi-elemental wood profiling as a tool to support law enforcement and environmental monitoring by providing scientifically grounded evidence of timber origin.
metadata.dc.description.unidade:	Instituto de Ciências Biológicas (IB) Departamento de Ecologia (IB ECL) Faculdade UnB Planaltina (FUP)
metadata.dc.description.ppg:	Programa de Pós-Graduação em Ciências Ambientais
Licença::	This article is an open access article distributed under the termsand conditions of the Creative Commons Attribution (CC BY)license (https://creativecommons.org/ licenses/by/4.0/).
DOI:	https://doi.org/10.3390/f16081284
Collection(s) :	Artigos publicados em periódicos e afins

Tous les documents dans DSpace sont protégés par copyright, avec tous droits réservés.