Digital Approach for Measuring Tree Diameters in the Amazon Forest
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Floresta e Ambiente |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-80872019000100117 |
Resumo: | ABSTRACT Buttresses and other natural structures modify the shape of stems in Amazonia and change the diameter at breast height (DBH) measured at 1.3 m at ground level. The lack of adequate measurement techniques affects negatively forest dynamics analyses and biomass estimating. The study evaluated an indirect method of measuring diameters in trees with DBH > 40 cm using principles of digital photogrammetry. The results obtained with two cameras (smartphone and Sony) were compared with direct measurements using diametric tape and a ladder. The technique is adequate to measure the diameters of trees with measurement point above 2 m of ground, with a confidence interval of ±1cm. The use of photogrammetry as a supplementary tool to the diametric tape (IC ± 0.24 cm) is recommended, helping to measure trees with diameter above the reach of the technician in forest inventories. |
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Floresta e Ambiente |
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|
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Digital Approach for Measuring Tree Diameters in the Amazon Forestdendrometrydiameter at breast heightforest dynamicsbiomass estimationuncertaintyABSTRACT Buttresses and other natural structures modify the shape of stems in Amazonia and change the diameter at breast height (DBH) measured at 1.3 m at ground level. The lack of adequate measurement techniques affects negatively forest dynamics analyses and biomass estimating. The study evaluated an indirect method of measuring diameters in trees with DBH > 40 cm using principles of digital photogrammetry. The results obtained with two cameras (smartphone and Sony) were compared with direct measurements using diametric tape and a ladder. The technique is adequate to measure the diameters of trees with measurement point above 2 m of ground, with a confidence interval of ±1cm. The use of photogrammetry as a supplementary tool to the diametric tape (IC ± 0.24 cm) is recommended, helping to measure trees with diameter above the reach of the technician in forest inventories.Instituto de Florestas da Universidade Federal Rural do Rio de Janeiro2019-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-80872019000100117Floresta e Ambiente v.26 n.1 2019reponame:Floresta e Ambienteinstname:Universidade Federal do Rio de Janeiro (UFRJ)instacron:UFRJ10.1590/2179-8087.038416info:eu-repo/semantics/openAccessCeles,Carlos Henrique SouzaAraujo,Raquel Fernandes deEmmert,FabianoLima,Adriano José NogueiraCampos,Moacir Alberto Assiseng2019-01-03T00:00:00Zoai:scielo:S2179-80872019000100117Revistahttps://www.floram.org/PUBhttps://old.scielo.br/oai/scielo-oai.phpfloramjournal@gmail.com||floram@ufrrj.br||2179-80871415-0980opendoar:2019-01-03T00:00Floresta e Ambiente - Universidade Federal do Rio de Janeiro (UFRJ)false |
dc.title.none.fl_str_mv |
Digital Approach for Measuring Tree Diameters in the Amazon Forest |
title |
Digital Approach for Measuring Tree Diameters in the Amazon Forest |
spellingShingle |
Digital Approach for Measuring Tree Diameters in the Amazon Forest Celes,Carlos Henrique Souza dendrometry diameter at breast height forest dynamics biomass estimation uncertainty |
title_short |
Digital Approach for Measuring Tree Diameters in the Amazon Forest |
title_full |
Digital Approach for Measuring Tree Diameters in the Amazon Forest |
title_fullStr |
Digital Approach for Measuring Tree Diameters in the Amazon Forest |
title_full_unstemmed |
Digital Approach for Measuring Tree Diameters in the Amazon Forest |
title_sort |
Digital Approach for Measuring Tree Diameters in the Amazon Forest |
author |
Celes,Carlos Henrique Souza |
author_facet |
Celes,Carlos Henrique Souza Araujo,Raquel Fernandes de Emmert,Fabiano Lima,Adriano José Nogueira Campos,Moacir Alberto Assis |
author_role |
author |
author2 |
Araujo,Raquel Fernandes de Emmert,Fabiano Lima,Adriano José Nogueira Campos,Moacir Alberto Assis |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Celes,Carlos Henrique Souza Araujo,Raquel Fernandes de Emmert,Fabiano Lima,Adriano José Nogueira Campos,Moacir Alberto Assis |
dc.subject.por.fl_str_mv |
dendrometry diameter at breast height forest dynamics biomass estimation uncertainty |
topic |
dendrometry diameter at breast height forest dynamics biomass estimation uncertainty |
description |
ABSTRACT Buttresses and other natural structures modify the shape of stems in Amazonia and change the diameter at breast height (DBH) measured at 1.3 m at ground level. The lack of adequate measurement techniques affects negatively forest dynamics analyses and biomass estimating. The study evaluated an indirect method of measuring diameters in trees with DBH > 40 cm using principles of digital photogrammetry. The results obtained with two cameras (smartphone and Sony) were compared with direct measurements using diametric tape and a ladder. The technique is adequate to measure the diameters of trees with measurement point above 2 m of ground, with a confidence interval of ±1cm. The use of photogrammetry as a supplementary tool to the diametric tape (IC ± 0.24 cm) is recommended, helping to measure trees with diameter above the reach of the technician in forest inventories. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-80872019000100117 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-80872019000100117 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/2179-8087.038416 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Instituto de Florestas da Universidade Federal Rural do Rio de Janeiro |
publisher.none.fl_str_mv |
Instituto de Florestas da Universidade Federal Rural do Rio de Janeiro |
dc.source.none.fl_str_mv |
Floresta e Ambiente v.26 n.1 2019 reponame:Floresta e Ambiente instname:Universidade Federal do Rio de Janeiro (UFRJ) instacron:UFRJ |
instname_str |
Universidade Federal do Rio de Janeiro (UFRJ) |
instacron_str |
UFRJ |
institution |
UFRJ |
reponame_str |
Floresta e Ambiente |
collection |
Floresta e Ambiente |
repository.name.fl_str_mv |
Floresta e Ambiente - Universidade Federal do Rio de Janeiro (UFRJ) |
repository.mail.fl_str_mv |
floramjournal@gmail.com||floram@ufrrj.br|| |
_version_ |
1750128142430765056 |