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Campo DC | Valor | Idioma |
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dc.contributor.author | Celes, Carlos Henrique Souza | - |
dc.contributor.author | Araújo, Raquel Nazaré O. de | - |
dc.contributor.author | Emmert, Fabiano | - |
dc.contributor.author | Lima, Adriano José Nogueira | - |
dc.contributor.author | Campos, Moacir Alberto Assis | - |
dc.date.accessioned | 2020-05-14T20:03:49Z | - |
dc.date.available | 2020-05-14T20:03:49Z | - |
dc.date.issued | 2019 | - |
dc.identifier.uri | https://repositorio.inpa.gov.br/handle/1/15541 | - |
dc.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. © 2019 Universidade Federal Rural do Rio de Janeiro (UFRRJ). | en |
dc.language.iso | en | pt_BR |
dc.relation.ispartof | Volume 26, Número 1 | pt_BR |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Brazil | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/br/ | * |
dc.title | Digital approach for measuring tree diameters in the Amazon forest | en |
dc.type | Artigo | pt_BR |
dc.identifier.doi | 10.1590/2179-8087.038416 | - |
dc.publisher.journal | Floresta e Ambiente | pt_BR |
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