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Individual-tree diameter growth models for mixed Nothofagus second growth forests in southern Chile

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dc.creatorMoreno, Paulo C.
dc.creatorPalmas, Sebastian
dc.creatorEscobedo, Francisco J
dc.creatorCropper, Wendell P.
dc.creatorGezan, Salvador A.
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.date.accessioned2019-02-28T16:41:17Z
dc.date.available2019-02-28T16:41:17Z
dc.date.created2017
dc.date.issued2017
dc.description.abstractSecond 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.eng
dc.format.mimetypeapplication/pdf
dc.identifier.doi10.3390/f8120506
dc.identifier.issn1999-4907
dc.identifier.urihttp://repository.urosario.edu.co/handle/10336/19152
dc.language.isoengspa
dc.relation.citationTitleForests
dc.relation.citationVolumeVol. 8
dc.relation.ispartofForests, ISSN:1999-4907, Vol. 8 (2017)spa
dc.relation.urihttps://www.mdpi.com/1999-4907/8/12/506spa
dc.rights.accesRightsinfo:eu-repo/semantics/openAccess
dc.rights.accesoAbierto (Texto Completo)spa
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)spa
dc.source.instnameinstname:Universidad del Rosario
dc.source.reponamereponame:Repositorio Institucional EdocUR
dc.subjectEcosystemsspa
dc.subjectError Statisticsspa
dc.subjectGeographical Distributionspa
dc.subjectMean Square Errorspa
dc.subjectCross Validationspa
dc.subjectForest Typespa
dc.subjectLassospa
dc.subjectTree Competitionspa
dc.subjectVariable Selectionspa
dc.subjectForestryspa
dc.subjectCompetition (Ecology)spa
dc.subjectDiameterspa
dc.subjectForest Managementspa
dc.subjectGeographical Distributionspa
dc.subjectGrowth Ratespa
dc.subjectModelingspa
dc.subjectShrubspa
dc.subjectSilviculturespa
dc.subjectSustainabilityspa
dc.subjectChilespa
dc.subjectNothofagusspa
dc.subjectNothofagus Alpinaspa
dc.subjectNothofagus Dombeyispa
dc.subjectNothofagus Obliquaspa
dc.subject.ddcBiologíaspa
dc.subject.lembEcosistemasspa
dc.subject.lembÁrbolesspa
dc.subject.lembCoihuespa
dc.titleIndividual-tree diameter growth models for mixed Nothofagus second growth forests in southern Chilespa
dc.typearticleeng
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersion
dc.type.spaArtículospa
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