A NEW GENERALIZED HEIGHT-DIAMETER MODEL WITH MIXED-EFFECT FOR PINUS PINASTER AIT. AND PINUS RADIATA D. DON
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Cerne (Online) |
Texto Completo: | https://cerne.ufla.br/site/index.php/CERNE/article/view/2333 |
Resumo: | Tree height-diameter (H-D) relationships are important for routine forest assessment. Several H-D relationships have been developed for different species and more are still evolving. This study introduced a new H-D model which was used to predict tree height from 184 and 96 permanent sample plots of Pinus pinaster and Pinus radiata, respectively in northwest Spain. Nonlinear mixed-effect modelling technique was used to fit the generalized H-D model. The mixed-effect H-D model was calibrated using the random effects predicted from one to three randomly selected trees per sample plot. Different indices including root mean square error (RMSE) and adjusted coefficient of determination ( ) were used to assessed the predictive performance of the model. The results show that the new model had and RMSE of 0.906 and 1.156 m and 0.814 and 1.703 m for P. pinaster and P. radiata, respectively. The calibration response involved the selection of one tree per sample plot – it resulted in a reduction of RMSE by 6.5% and 13.5% for pinaster and P. radiata, respectively. |
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Cerne (Online) |
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A NEW GENERALIZED HEIGHT-DIAMETER MODEL WITH MIXED-EFFECT FOR PINUS PINASTER AIT. AND PINUS RADIATA D. DONHossfeld IV, fixed-effect, model calibration, nonlinear mixed-effectTree height-diameter (H-D) relationships are important for routine forest assessment. Several H-D relationships have been developed for different species and more are still evolving. This study introduced a new H-D model which was used to predict tree height from 184 and 96 permanent sample plots of Pinus pinaster and Pinus radiata, respectively in northwest Spain. Nonlinear mixed-effect modelling technique was used to fit the generalized H-D model. The mixed-effect H-D model was calibrated using the random effects predicted from one to three randomly selected trees per sample plot. Different indices including root mean square error (RMSE) and adjusted coefficient of determination ( ) were used to assessed the predictive performance of the model. The results show that the new model had and RMSE of 0.906 and 1.156 m and 0.814 and 1.703 m for P. pinaster and P. radiata, respectively. The calibration response involved the selection of one tree per sample plot – it resulted in a reduction of RMSE by 6.5% and 13.5% for pinaster and P. radiata, respectively.CERNECERNE2020-05-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://cerne.ufla.br/site/index.php/CERNE/article/view/2333CERNE; Vol. 26 No. 1 (2020); 150-161CERNE; v. 26 n. 1 (2020); 150-1612317-63420104-7760reponame:Cerne (Online)instname:Universidade Federal de Lavras (UFLA)instacron:UFLAenghttps://cerne.ufla.br/site/index.php/CERNE/article/view/2333/1182Copyright (c) 2020 CERNEinfo:eu-repo/semantics/openAccessOgana, Friday NwabuezeCorral-Rivas, SacramentoGorgoso-Varela, Jose Javier2020-05-15T19:57:22Zoai:cerne.ufla.br:article/2333Revistahttps://cerne.ufla.br/site/index.php/CERNEPUBhttps://cerne.ufla.br/site/index.php/CERNE/oaicerne@dcf.ufla.br||cerne@dcf.ufla.br2317-63420104-7760opendoar:2020-05-15T19:57:22Cerne (Online) - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
A NEW GENERALIZED HEIGHT-DIAMETER MODEL WITH MIXED-EFFECT FOR PINUS PINASTER AIT. AND PINUS RADIATA D. DON |
title |
A NEW GENERALIZED HEIGHT-DIAMETER MODEL WITH MIXED-EFFECT FOR PINUS PINASTER AIT. AND PINUS RADIATA D. DON |
spellingShingle |
A NEW GENERALIZED HEIGHT-DIAMETER MODEL WITH MIXED-EFFECT FOR PINUS PINASTER AIT. AND PINUS RADIATA D. DON Ogana, Friday Nwabueze Hossfeld IV, fixed-effect, model calibration, nonlinear mixed-effect |
title_short |
A NEW GENERALIZED HEIGHT-DIAMETER MODEL WITH MIXED-EFFECT FOR PINUS PINASTER AIT. AND PINUS RADIATA D. DON |
title_full |
A NEW GENERALIZED HEIGHT-DIAMETER MODEL WITH MIXED-EFFECT FOR PINUS PINASTER AIT. AND PINUS RADIATA D. DON |
title_fullStr |
A NEW GENERALIZED HEIGHT-DIAMETER MODEL WITH MIXED-EFFECT FOR PINUS PINASTER AIT. AND PINUS RADIATA D. DON |
title_full_unstemmed |
A NEW GENERALIZED HEIGHT-DIAMETER MODEL WITH MIXED-EFFECT FOR PINUS PINASTER AIT. AND PINUS RADIATA D. DON |
title_sort |
A NEW GENERALIZED HEIGHT-DIAMETER MODEL WITH MIXED-EFFECT FOR PINUS PINASTER AIT. AND PINUS RADIATA D. DON |
author |
Ogana, Friday Nwabueze |
author_facet |
Ogana, Friday Nwabueze Corral-Rivas, Sacramento Gorgoso-Varela, Jose Javier |
author_role |
author |
author2 |
Corral-Rivas, Sacramento Gorgoso-Varela, Jose Javier |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Ogana, Friday Nwabueze Corral-Rivas, Sacramento Gorgoso-Varela, Jose Javier |
dc.subject.por.fl_str_mv |
Hossfeld IV, fixed-effect, model calibration, nonlinear mixed-effect |
topic |
Hossfeld IV, fixed-effect, model calibration, nonlinear mixed-effect |
description |
Tree height-diameter (H-D) relationships are important for routine forest assessment. Several H-D relationships have been developed for different species and more are still evolving. This study introduced a new H-D model which was used to predict tree height from 184 and 96 permanent sample plots of Pinus pinaster and Pinus radiata, respectively in northwest Spain. Nonlinear mixed-effect modelling technique was used to fit the generalized H-D model. The mixed-effect H-D model was calibrated using the random effects predicted from one to three randomly selected trees per sample plot. Different indices including root mean square error (RMSE) and adjusted coefficient of determination ( ) were used to assessed the predictive performance of the model. The results show that the new model had and RMSE of 0.906 and 1.156 m and 0.814 and 1.703 m for P. pinaster and P. radiata, respectively. The calibration response involved the selection of one tree per sample plot – it resulted in a reduction of RMSE by 6.5% and 13.5% for pinaster and P. radiata, respectively. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-05-15 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://cerne.ufla.br/site/index.php/CERNE/article/view/2333 |
url |
https://cerne.ufla.br/site/index.php/CERNE/article/view/2333 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://cerne.ufla.br/site/index.php/CERNE/article/view/2333/1182 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2020 CERNE info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2020 CERNE |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
CERNE CERNE |
publisher.none.fl_str_mv |
CERNE CERNE |
dc.source.none.fl_str_mv |
CERNE; Vol. 26 No. 1 (2020); 150-161 CERNE; v. 26 n. 1 (2020); 150-161 2317-6342 0104-7760 reponame:Cerne (Online) instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Cerne (Online) |
collection |
Cerne (Online) |
repository.name.fl_str_mv |
Cerne (Online) - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
cerne@dcf.ufla.br||cerne@dcf.ufla.br |
_version_ |
1789440345978699776 |