Airborne laser scanning applied to eucalyptus stand inventory at individual tree level

Authors

  • Diogo Nepomuceno Cosenza Universidade de Lisboa, Instituto Superior de Agronomia, Centro de Estudos Florestais, Tapada da Ajuda, CP 1349-017 Lisboa, Portugal.
  • Vicente Paulo Soares Universidade Federal de Viçosa, Departamento de Engenharia Florestal, Avenida Purdue, s/no, Campus Universitário, Edifício Reinaldo de Jesus Araújo, CEP 36570-900 Viçosa, MG.
  • Helio Garcia Leite Universidade Federal de Viçosa, Departamento de Engenharia Florestal, Avenida Purdue, s/no, Campus Universitário, Edifício Reinaldo de Jesus Araújo, CEP 36570-900 Viçosa, MG.
  • José Marinaldo Gleriani Universidade Federal de Viçosa, Departamento de Engenharia Florestal, Avenida Purdue, s/no, Campus Universitário, Edifício Reinaldo de Jesus Araújo, CEP 36570-900 Viçosa, MG.
  • Cibele Hummel do Amaral Universidade Federal de Viçosa, Departamento de Engenharia Florestal, Avenida Purdue, s/no, Campus Universitário, Edifício Reinaldo de Jesus Araújo, CEP 36570-900 Viçosa, MG.
  • Joel Gripp Júnior Universidade Federal de Viçosa, Departamento de Engenharia Civil, Avenida P.H. Rolfs, s/no, Campus Universitário, CEP 36570-900 Viçosa, MG.
  • Antonilmar Araújo Lopes da Silva Celulose Nipo-Brasileira S/A, Rodovia BR 381, Km 172, Distrito de Perpétuo Socorro, CEP 35196-000 Belo Oriente, MG.
  • Paula Soares Universidade de Lisboa, Instituto Superior de Agronomia, Centro de Estudos Florestais, Tapada da Ajuda, CP 1349-017 Lisboa, Portugal.
  • Margarida Tomé Universidade de Lisboa, Instituto Superior de Agronomia, Centro de Estudos Florestais, Tapada da Ajuda, CP 1349-017 Lisboa, Portugal.

DOI:

https://doi.org/10.1590/S1678-3921.pab2018.v53.25987

Keywords:

forest measurement, laser scanners, LiDAR

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.

Author Biography

Diogo Nepomuceno Cosenza, Universidade de Lisboa, Instituto Superior de Agronomia, Centro de Estudos Florestais, Tapada da Ajuda, CP 1349-017 Lisboa, Portugal.

 

 

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Published

2018-12-28

How to Cite

Cosenza, D. N., Soares, V. P., Leite, H. G., Gleriani, J. M., Amaral, C. H. do, Júnior, J. G., … Tomé, M. (2018). Airborne laser scanning applied to eucalyptus stand inventory at individual tree level. Pesquisa Agropecuaria Brasileira, 53(12), 1373–1382. https://doi.org/10.1590/S1678-3921.pab2018.v53.25987

Issue

v.53, n.12, dez. 2018

Section

REMOTE SENSING