Data/hora: 05/06/2024 08:26:23

Provedor de dados: | 86
País: | Brazil
Título: | Airborne laser scanning applied to eucalyptus stand inventory at individual tree level
Autores: | Cosenza,Diogo Nepomuceno; Soares,Vicente Paulo; Leite,Helio Garcia; Gleriani,José Marinaldo; Amaral,Cibele Hummel do; Gripp Júnior,Joel; Silva,Antonilmar Araújo Lopes da; Soares,Paula; Tomé,Margarida.
Data: | 2018-12-01
Ano: | 2018
Palavras-chave: | Forest measurement; Laser scanners; LiDAR.
Resumo: | Abstract: 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.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018001201373

Editor:

Embrapa Secretaria de Pesquisa e Desenvolvimento

Pesquisa Agropecuária Brasileira

Relação: | 10.1590/s0100-204x2018001200010
Formato: | text/html
Fonte: | Pesquisa Agropecuária Brasileira  v.53 n.12 2018
Fonte: | info:eu-repo/semantics/openAccess