Individual-tree diameter growth models for mixed Nothofagus second growth forests in southern Chile
Second 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 on...
- Autores:
- Tipo de recurso:
- Fecha de publicación:
- 2017
- Institución:
- Universidad del Rosario
- Repositorio:
- Repositorio EdocUR - U. Rosario
- Idioma:
- eng
- OAI Identifier:
- oai:repository.urosario.edu.co:10336/19152
- Acceso en línea:
- http://repository.urosario.edu.co/handle/10336/19152
- Palabra clave:
- Ecosystems
Error Statistics
Geographical Distribution
Mean Square Error
Cross Validation
Forest Type
Lasso
Tree Competition
Variable Selection
Forestry
Competition (Ecology)
Diameter
Forest Management
Geographical Distribution
Growth Rate
Modeling
Shrub
Silviculture
Sustainability
Chile
Nothofagus
Nothofagus Alpina
Nothofagus Dombeyi
Nothofagus Obliqua
Biología
Ecosistemas
Árboles
Coihue
- Rights
- License
- Abierto (Texto Completo)
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9d4652ee-e9c6-4e7d-9eb9-e5ffe5a4454b600bb05be6f-02e9-47e2-a353-811a4850ce016005710916003b36cea5-acf7-4123-a5d1-514094881f4360055f16361-57e6-4013-ab98-e52380f6a5ab6002019-02-28T16:41:17Z2019-02-28T16:41:17Z20172017Second 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.application/pdf10.3390/f81205061999-4907http://repository.urosario.edu.co/handle/10336/19152engForestsVol. 8Forests, ISSN:1999-4907, Vol. 8 (2017)https://www.mdpi.com/1999-4907/8/12/506Abierto (Texto Completo)http://purl.org/coar/access_right/c_abf2Donoso, 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)instname:Universidad del Rosarioreponame:Repositorio Institucional EdocUREcosystemsError StatisticsGeographical DistributionMean Square ErrorCross ValidationForest TypeLassoTree CompetitionVariable SelectionForestryCompetition (Ecology)DiameterForest ManagementGeographical DistributionGrowth RateModelingShrubSilvicultureSustainabilityChileNothofagusNothofagus AlpinaNothofagus DombeyiNothofagus ObliquaBiología574600EcosistemasÁrbolesCoihueIndividual-tree diameter growth models for mixed Nothofagus second growth forests in southern ChilearticleArtículohttp://purl.org/coar/version/c_970fb48d4fbd8a85http://purl.org/coar/resource_type/c_6501Moreno, Paulo C.Palmas, SebastianEscobedo, Francisco JCropper, Wendell P.Gezan, Salvador A.Moreno, Paulo C.Palmas, SebastianEscobedo, Francisco J.Cropper, Wendell P.Gezan, Salvador A.ORIGINAL118.pdfapplication/pdf2346971https://repository.urosario.edu.co/bitstreams/9cf7794f-3e19-47cc-9718-a1e996914ce9/download9f821cb38b40d620de76d3181dc43d5bMD51TEXT118.pdf.txt118.pdf.txtExtracted texttext/plain74597https://repository.urosario.edu.co/bitstreams/d602c7e3-4111-464a-a134-abdbf0aac806/download009aef59c91e856129b0b1d09f49b966MD52THUMBNAIL118.pdf.jpg118.pdf.jpgGenerated Thumbnailimage/jpeg5003https://repository.urosario.edu.co/bitstreams/984ea04b-d92c-4b5c-8aa9-202d26f8186a/download29ce798bd3a65a2cd15889ad65b1ce17MD5310336/19152oai:repository.urosario.edu.co:10336/191522019-09-19 07:37:54.609585https://repository.urosario.edu.coRepositorio institucional EdocURedocur@urosario.edu.co |
dc.title.spa.fl_str_mv |
Individual-tree diameter growth models for mixed Nothofagus second growth forests in southern Chile |
title |
Individual-tree diameter growth models for mixed Nothofagus second growth forests in southern Chile |
spellingShingle |
Individual-tree diameter growth models for mixed Nothofagus second growth forests in southern Chile Ecosystems Error Statistics Geographical Distribution Mean Square Error Cross Validation Forest Type Lasso Tree Competition Variable Selection Forestry Competition (Ecology) Diameter Forest Management Geographical Distribution Growth Rate Modeling Shrub Silviculture Sustainability Chile Nothofagus Nothofagus Alpina Nothofagus Dombeyi Nothofagus Obliqua Biología Ecosistemas Árboles Coihue |
title_short |
Individual-tree diameter growth models for mixed Nothofagus second growth forests in southern Chile |
title_full |
Individual-tree diameter growth models for mixed Nothofagus second growth forests in southern Chile |
title_fullStr |
Individual-tree diameter growth models for mixed Nothofagus second growth forests in southern Chile |
title_full_unstemmed |
Individual-tree diameter growth models for mixed Nothofagus second growth forests in southern Chile |
title_sort |
Individual-tree diameter growth models for mixed Nothofagus second growth forests in southern Chile |
dc.subject.spa.fl_str_mv |
Ecosystems Error Statistics Geographical Distribution Mean Square Error Cross Validation Forest Type Lasso Tree Competition Variable Selection Forestry Competition (Ecology) Diameter Forest Management Geographical Distribution Growth Rate Modeling Shrub Silviculture Sustainability Chile Nothofagus Nothofagus Alpina Nothofagus Dombeyi Nothofagus Obliqua |
topic |
Ecosystems Error Statistics Geographical Distribution Mean Square Error Cross Validation Forest Type Lasso Tree Competition Variable Selection Forestry Competition (Ecology) Diameter Forest Management Geographical Distribution Growth Rate Modeling Shrub Silviculture Sustainability Chile Nothofagus Nothofagus Alpina Nothofagus Dombeyi Nothofagus Obliqua Biología Ecosistemas Árboles Coihue |
dc.subject.ddc.spa.fl_str_mv |
Biología |
dc.subject.lemb.spa.fl_str_mv |
Ecosistemas Árboles Coihue |
description |
Second 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. |
publishDate |
2017 |
dc.date.created.none.fl_str_mv |
2017 |
dc.date.issued.none.fl_str_mv |
2017 |
dc.date.accessioned.none.fl_str_mv |
2019-02-28T16:41:17Z |
dc.date.available.none.fl_str_mv |
2019-02-28T16:41:17Z |
dc.type.eng.fl_str_mv |
article |
dc.type.coarversion.fl_str_mv |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
dc.type.coar.fl_str_mv |
http://purl.org/coar/resource_type/c_6501 |
dc.type.spa.spa.fl_str_mv |
Artículo |
dc.identifier.doi.none.fl_str_mv |
10.3390/f8120506 |
dc.identifier.issn.none.fl_str_mv |
1999-4907 |
dc.identifier.uri.none.fl_str_mv |
http://repository.urosario.edu.co/handle/10336/19152 |
identifier_str_mv |
10.3390/f8120506 1999-4907 |
url |
http://repository.urosario.edu.co/handle/10336/19152 |
dc.language.iso.spa.fl_str_mv |
eng |
language |
eng |
dc.relation.citationTitle.none.fl_str_mv |
Forests |
dc.relation.citationVolume.none.fl_str_mv |
Vol. 8 |
dc.relation.ispartof.spa.fl_str_mv |
Forests, ISSN:1999-4907, Vol. 8 (2017) |
dc.relation.uri.spa.fl_str_mv |
https://www.mdpi.com/1999-4907/8/12/506 |
dc.rights.coar.fl_str_mv |
http://purl.org/coar/access_right/c_abf2 |
dc.rights.acceso.spa.fl_str_mv |
Abierto (Texto Completo) |
rights_invalid_str_mv |
Abierto (Texto Completo) http://purl.org/coar/access_right/c_abf2 |
dc.format.mimetype.none.fl_str_mv |
application/pdf |
institution |
Universidad del Rosario |
dc.source.bibliographicCitation.spa.fl_str_mv |
Donoso, 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) |
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instname:Universidad del Rosario |
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reponame:Repositorio Institucional EdocUR |
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