A portable method to estimate wood basic density from increment cores using spectroscopic techniques

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dc.contributor.authorGalleguillos Hart, Cristobal
dc.contributor.authorPaulina Fernandez, M.
dc.contributor.authorGuesalaga, Andres
dc.date.accessioned2024-01-10T13:11:11Z
dc.date.available2024-01-10T13:11:11Z
dc.date.issued2010
dc.description.abstractThe aim of this paper is to report the use of spectroscopic techniques for the measurement of basic wood density in Eucalyptus nitens, using samples in a state similar to that found in the field; so the current design can later be extended to a portable instrument that could eventually estimate the wood characteristics of a standing tree. Model calibration was carried out using wet samples taken from eight-year-old trees. Each sample was scanned to acquire two types of spectra: Raman and near infrared (NIR). Several pre-processing techniques were applied to the spectra in order to obtain the best possible prediction models for wood basic density using partial least squares (PLS) regression. The model selection criteria were based on maximising the coefficients of determination R-c(2) and r(v)(2) and minimising the root mean square error (RMSE). The potential of NIR for this purpose was demonstrated; r(v)(2) up to 0.87 and RMSEP down to 8.6 kg m(-3) were obtained. Raman spectroscopy proved to be unfit for the application, yielding extremely low correlation values and models with low predictive capabilities.
dc.description.funderForestal Mininco S.A.
dc.description.funderCONICYT/PBCT, (Chile)
dc.fechaingreso.objetodigital2024-05-16
dc.format.extent8 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1255/jnirs.899
dc.identifier.eissn1751-6552
dc.identifier.issn0967-0335
dc.identifier.urihttps://doi.org/10.1255/jnirs.899
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/78009
dc.identifier.wosidWOS:000287428300013
dc.information.autorucIngeniería;Galleguillos-Hart C ;S/I;140933
dc.information.autorucIngeniería;Guesalaga A;S/I;63871
dc.issue.numero6
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final472
dc.pagina.inicio465
dc.publisherSAGE PUBLICATIONS LTD
dc.revistaJOURNAL OF NEAR INFRARED SPECTROSCOPY
dc.rightsacceso restringido
dc.subjectbasic density
dc.subjectEucalyptus nitens
dc.subjectNIR
dc.subjectPLS regression
dc.subjectRaman
dc.subjectwood
dc.subjectspectroscopy
dc.subjectNEAR-INFRARED SPECTROSCOPY
dc.subjectKRAFT PULP YIELD
dc.subjectRAMAN-SPECTROSCOPY
dc.subjectEUCALYPTUS-NITENS
dc.subjectGENETIC-PARAMETERS
dc.subjectCELLULOSE CONTENT
dc.subjectSPECTRA
dc.subjectCALIBRATIONS
dc.subjectPREDICTION
dc.subjectSTIFFNESS
dc.titleA portable method to estimate wood basic density from increment cores using spectroscopic techniques
dc.typeartículo
dc.volumen18
sipa.codpersvinculados140933
sipa.codpersvinculados63871
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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