Title:	Geographical traceability of Manilkara huberi (Ducke) A. Chev. by chemical signature.
Authors:	SILVA, A. C. L. da LOPES, M. T. G. TOMAZ, J. S. VALENTE, M. S. F. BEZERRA, C. de S. CAPUCHO, H. L. V. MARQUES, R. L. S. LOPES, R. PEREIRA, A. M. FERREYRA RAMOS, S. L.
Affiliation:	ANTONIO CLEITON LOPES DA SILVA, UNIVERSIDADE FEDERAL DO AMAZONAS; MARIA TERESA GOMES LOPES, UNIVERSIDADE FEDERAL DO AMAZONAS; JENNIFER SOUZA TOMAZ, UNIVERSIDADE FEDERAL DO AMAZONAS; MÁGNO SÁVIO FERREIRA VALENTE, INSTITUTO FEDERAL DO AMAZONAS; CAROLINE DE SOUZA BEZERRA, UNIVERSIDADE FEDERAL DO AMAZONAS; HELINARA LAIS VIEIRA CAPUCHO, UNIVERSIDADE FEDERAL DO AMAZONAS; RICARDO LÍVIO SANTOS MARQUES, UNIVERSIDADE FEDERAL DO AMAZONAS; RICARDO LOPES, CPAA; ANDERSON MATHIAS PEREIRA, UNIVERSIDADE FEDERAL DO AMAZONAS; SANTIAGO LINORIO FERREYRA RAMOS, UNIVERSIDADE FEDERAL DO AMAZONAS.
Date Issued:	2026
Citation:	Polish Journal of Environmental Studies, 2026.
Description:	This study evaluated the potential of Total Reflection X-ray Fluorescence (TXRF) as a geochemical traceability method for wood from Manilkara huberi (Ducke) A. Chev., a species of high commercial and ecological value widely exploited in the Legal Amazon. Wood samples were collected in eight locations in the states of Amazonas, Pará, Rondônia, and Roraima, representing different edaphic, geological, and climatic conditions in the context of Amazonian edaphic and geological variability. The multielemental analysis revealed significant variations in trace element and macronutrient concentrations (Fe, Mn, K, Ca, Sr, Rb), reflecting the specific geochemical signatures of each region. Multivariate analyses (PCA and NMDS) showed distinct groupings among the populations, confirming the discriminatory capacity of TXRF in the differentiation of geographical origins. Significant correlations between elements such as K × Rb and Cr × Fe demonstrated consistent patterns of coaccumulation and antagonism associated with local geochemistry. The results prove the efficiency of TXRF as a non-destructive, sensitive, and low-cost technique for origin authentication and forensic investigation of Amazonian wood, strengthening sustainable management policies and combating illegal exploitation. The proposed methodology is a scientific advance in forest traceability and biodiversity conservation, contributing to the transparency and legality of timber production chains in the Amazon.
Thesagro:	Manilkara Huberi
Keywords:	Wood geochemistry Geochemical fingerprinting Forest conservation Massaranduba X-ray fluorescence Plants Spectrophotometric
DOI:	https://doi.org/10.15244/pjoes/218652
Notes:	Online first.
Type of Material:	Artigo de periódico
Access:	openAccess
Appears in Collections:	Artigo em periódico indexado (CPAA)