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| Registros recuperados : 484 | |
| Registros recuperados : 484 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
02/01/2019 |
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Data da última atualização: |
25/02/2019 |
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Autoria: |
COSENZA, D. N.; SOARES, V. P.; LEITE, H. G.; GLERIANI, J. M.; AMARAL, C. H. do; GRIPP JÚNIOR, J.; SILVA, A A. L. da; SOARES, P.; TOMÉ, M. |
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Afiliação: |
Diogo Nepomuceno Cosenza, Universidade de Lisboa/Instituto Superior de Agronomia/Centro de Estudos Florestais; Vicente Paulo Soares, Universidade Federal de Viçosa - UFV/Departamento de Engenharia Florestal; Helio Garcia Leite, Universidade Federal de Viçosa - UFV/Departamento de Engenharia Florestal; José Marinaldo Gleriani, Universidade Federal de Viçosa - UFV/Departamento de Engenharia Florestal; Cibele Hummel do Amaral, Universidade Federal de Viçosa - UFV/Departamento de Engenharia Florestal; Joel Gripp Júnior, Universidade Federal de Viçosa - UFV/Departamento de Engenharia Civil; Antonilmar Araújo Lopes da Silva, Celulose Nipo-Brasileira S/A.; Paula Soares, Universidade de Lisboa/Instituto Superior de Agronomia/Centro de Estudos Florestais; Margarida Tomé, Universidade de Lisboa/Instituto Superior de Agronomia/Centro de Estudos Florestais. |
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Título: |
Airborne laser scanning applied to eucalyptus stand inventory at individual tree level. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 53, n. 12, p. 1373-1382, Dez. 2018. |
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Idioma: |
Inglês |
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Notas: |
Título em português: Escaneamento a laser aerotransportado aplicado a inventário de povoamentos de eucalipto ao nível de árvores individuais. |
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Conteúdo: |
The objective of this work was to evaluate the application of airborne laser scanning (ALS) to a large-scale eucalyptus stand inventory by the method of individual trees, as well as to propose a new method to estimate tree diameter as a function of the height obtained from point clouds. The study was carried out in a forest area of 1,681 ha, consisting of eight eucalyptus stands with ages varying from four to seven years. After scanning, tree heights were obtained using the local maxima algorithm, and total wood stock by summing up individual volumes. To determine tree diameters, regressions fit using data measured in the inventory plots were used. The results were compared with the estimates obtained from field sampling. The equation system proposed is adequate to be applied to the tree height data derived from ALS point clouds. The tree individualization approach by local maxima filters is efficient to estimate number of trees and wood stock from ALS data, as long as the results are previously calibrated with field data. |
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Palavras-Chave: |
Forest measurement; Laser scanners; Mensuração florestal; Varredura a laser. |
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Thesaurus NAL: |
Lidar. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/189612/1/Airborne-laser-scanning-applied-to-eucalyptus.pdf
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Marc: |
LEADER 02030naa a2200289 a 4500
001 2102832
005 2019-02-25
008 2018 bl uuuu u00u1 u #d
100 1 $aCOSENZA, D. N.
245 $aAirborne laser scanning applied to eucalyptus stand inventory at individual tree level.$h[electronic resource]
260 $c2018
500 $aTítulo em português: Escaneamento a laser aerotransportado aplicado a inventário de povoamentos de eucalipto ao nível de árvores individuais.
520 $aThe objective of this work was to evaluate the application of airborne laser scanning (ALS) to a large-scale eucalyptus stand inventory by the method of individual trees, as well as to propose a new method to estimate tree diameter as a function of the height obtained from point clouds. The study was carried out in a forest area of 1,681 ha, consisting of eight eucalyptus stands with ages varying from four to seven years. After scanning, tree heights were obtained using the local maxima algorithm, and total wood stock by summing up individual volumes. To determine tree diameters, regressions fit using data measured in the inventory plots were used. The results were compared with the estimates obtained from field sampling. The equation system proposed is adequate to be applied to the tree height data derived from ALS point clouds. The tree individualization approach by local maxima filters is efficient to estimate number of trees and wood stock from ALS data, as long as the results are previously calibrated with field data.
650 $aLidar
653 $aForest measurement
653 $aLaser scanners
653 $aMensuração florestal
653 $aVarredura a laser
700 1 $aSOARES, V. P.
700 1 $aLEITE, H. G.
700 1 $aGLERIANI, J. M.
700 1 $aAMARAL, C. H. do
700 1 $aGRIPP JÚNIOR, J.
700 1 $aSILVA, A A. L. da
700 1 $aSOARES, P.
700 1 $aTOMÉ, M.
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 53, n. 12, p. 1373-1382, Dez. 2018.
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Registro original: |
Embrapa Unidades Centrais (AI-SEDE) |
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