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dc.creatorMoreno, Paulo C. 
dc.creatorPalmas, Sebastian 
dc.creatorEscobedo, Francisco J 
dc.creatorCropper, Wendell P. 
dc.creatorGezan, Salvador A. 
dc.date.accessioned2019-02-28T16:41:17Z
dc.date.available2019-02-28T16:41:17Z
dc.date.created2017
dc.date.issued2017 
dc.identifier.issn1999-4907
dc.identifier.urihttp://repository.urosario.edu.co/handle/10336/19152
dc.descriptionSecond growth forests of Nothofagus obliqua (roble), N. alpina (raulí), and N. dombeyi (coihue), known locally as RORACO, are among the most important native mixed forests in Chile. To improve the sustainable management of these forests, managers need adequate information and models regarding not only existing forest conditions, but their future states with varying alternative silvicultural activities. In this study, an individual-tree diameter growth model was developed for the full geographical distribution of the RORACO forest type. This was achieved by fitting a complete model by comparing two variable selection procedures: cross-validation (CV), and least absolute shrinkage and selection operator (LASSO) regression. A small set of predictors successfully explained a large portion of the annual increment in diameter at breast height (DBH) growth, particularly variables associated with competition at both the tree- and stand-level. Goodness-of-fit statistics for this final model showed an empirical coefficient of correlation (R2emp) of 0.56, relative root mean square error of 44.49% and relative bias of -1.96% for annual DBH growth predictions, and R2emp of 0.98 and 0.97 for DBH projection at 6 and 12 years, respectively. This model constitutes a simple and useful tool to support management plans for these forest ecosystems. © 2017 by the authors.
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.relation.ispartofForests, ISSN:1999-4907, Vol. 8 (2017)
dc.relation.urihttps://www.mdpi.com/1999-4907/8/12/506
dc.subjectEcosystems
dc.subjectError Statistics
dc.subjectGeographical Distribution
dc.subjectMean Square Error
dc.subjectCross Validation
dc.subjectForest Type
dc.subjectLasso
dc.subjectTree Competition
dc.subjectVariable Selection
dc.subjectForestry
dc.subjectCompetition (Ecology)
dc.subjectDiameter
dc.subjectForest Management
dc.subjectGeographical Distribution
dc.subjectGrowth Rate
dc.subjectModeling
dc.subjectShrub
dc.subjectSilviculture
dc.subjectSustainability
dc.subjectChile
dc.subjectNothofagus
dc.subjectNothofagus Alpina
dc.subjectNothofagus Dombeyi
dc.subjectNothofagus Obliqua
dc.subject.ddcBiología 
dc.subject.lembEcosistemas
dc.subject.lembÁrboles
dc.subject.lembCoihue
dc.titleIndividual-tree diameter growth models for mixed Nothofagus second growth forests in southern Chile
dc.typearticle
dc.rights.accesRightsinfo:eu-repo/semantics/openAccess
dc.type.spaArtículo
dc.rights.accesoAbierto (Texto Completo)
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersion
dc.source.bibliographicCitationDonoso, C., Variación natural en especies de Nothofagus en Chile (1987) Bosque, 8, pp. 85-97. , http://mingaonline.uach.cl/pdf/bosque/v8n2/art03.pdf, (accessed on 15 July 2017)
dc.creator.googleMoreno, Paulo C.
dc.creator.googlePalmas, Sebastian
dc.creator.googleEscobedo, Francisco J.
dc.creator.googleCropper, Wendell P.
dc.creator.googleGezan, Salvador A.
dc.identifier.doi10.3390/f8120506


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