Skip to Main Content
NIRS Identification of Swietenia Macrophylla is Robust Across Specimens from 27 CountriesAuthor(s): Maria C.J. Bergo; Tereza C.M. Pastore; Vera T.R. Coradin; Alex C. Wiedenhoeft; Jez W.B. Braga
Source: IAWA Journal 37(3), 2016: 420-430
Publication Series: Scientific Journal (JRNL)
Station: Forest Products Laboratory
PDF: Download Publication (1.0 MB)
DescriptionBig-leaf mahogany is the world’s most valuable widely traded tropical timber species and Near Infrared Spectroscopy (NIRS) has been applied as a tool for discriminating its wood from similar species using multivariate analysis. In this study four look-alike timbers of Swietenia macrophylla (mahogany or big-leaf mahogany), Carapa guianensis (crabwood), Cedrela odorata (cedar or cedro) and Micropholis melinoniana (curupixá) have been successfully discriminated using NIRS and Partial Least Squares for Discriminant Analysis using solid block and milled samples. Species identification models identified 155 samples of S. macrophylla from 27 countries with a correct classification rate higher than 96.8%. For these specimens, the NIRS spectrum variation was more powerful for species identification than for determining provenance of S. macrophylla at the country level.
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationBergo, Maria C.J.; Pastore, Tereza C.M.; Coradin, Vera T.R.; Wiedenhoeft, Alex C.; Braga, Jez W.B. 2016. NIRS Identification of Swietenia macrophylla is robust across specimens from 27 countries. IAWA Journal. 37(3): 420-430.
KeywordsNear infrared spectroscopy, Carapa guianensis, Cedrela odorata, Micropholis melinoniana, Swietenia macrophylla, provenance
- Sustained mahogany (Swietenia macrophylla) plantation heartwood increment.
- Over-harvesting driven by consumer demand leads to population decline: big-leaf mahogany in South America
- Post-logging loss of genetic diversity in a mahogany (Swietenia macrophylla King, Meliaceae) population in Brazilian Amazonia
XML: View XML