Precision and efficiency of the inventory of teak plantations in Ecuador by using terrestrial laser scanner

The aim of this study was to evaluate the precision and efficiency of the forest inventory method from using Terrestrial Laser Scanner (TLS) to determine dendrometric variables in teak plantations (Tectona grandis Linn. F.). Circular sampling plots of 500 m2 were established in three teak plantation...

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Hauptverfasser: Peñalver Romeo, Alberto, Aguilar Torres, Fernando J., Nemmaoui, Abderrahim, Rivas Barzola, José Ricardo, Triana Tomalá, Ángel Antonio, Aguilar Torres, Manuel A., Llanderal, Alfonso
Format: Online
Sprache:spa
Veröffentlicht: Instituto de Ecología, A.C. 2021
Online Zugang:https://myb.ojs.inecol.mx/index.php/myb/article/view/e2712097
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author Peñalver Romeo, Alberto
Aguilar Torres, Fernando J.
Nemmaoui, Abderrahim
Rivas Barzola, José Ricardo
Triana Tomalá, Ángel Antonio
Aguilar Torres, Manuel A.
Llanderal, Alfonso
author_facet Peñalver Romeo, Alberto
Aguilar Torres, Fernando J.
Nemmaoui, Abderrahim
Rivas Barzola, José Ricardo
Triana Tomalá, Ángel Antonio
Aguilar Torres, Manuel A.
Llanderal, Alfonso
author_sort Peñalver Romeo, Alberto
collection MYB
description The aim of this study was to evaluate the precision and efficiency of the forest inventory method from using Terrestrial Laser Scanner (TLS) to determine dendrometric variables in teak plantations (Tectona grandis Linn. F.). Circular sampling plots of 500 m2 were established in three teak plantations located in the Coastal region of Ecuador. Traditional forest inventory (TFI) and TLS methods were used to determine several dendrometric variables (normal diameter, total height, and crown radius), also recording the work time necessary to complement the inventory of each plot.  The estimates of the dasometric indices for each inventory method and the relative efficiency of TLS with respect to IFT were contrasted using statistical inference tests. The statistical tests did not detect significant differences between the two inventory methods in relation to both the measured dasometric variables and the working times recorded in each plot. The relative efficiency values showed some superiority of TLS method over TFI. Forest inventories of teak plantations based on TLS method is sufficiently accurate for estimating dasometric variables, being more efficient than traditional inventory.
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spelling oai:oai.myb.ojs.inecol.mx:article-20972022-11-29T22:29:23Z Precision and efficiency of the inventory of teak plantations in Ecuador by using terrestrial laser scanner Precisión y eficiencia del inventario de plantaciones de teca en Ecuador mediante escáner láser terrestre Peñalver Romeo, Alberto Aguilar Torres, Fernando J. Nemmaoui, Abderrahim Rivas Barzola, José Ricardo Triana Tomalá, Ángel Antonio Aguilar Torres, Manuel A. Llanderal, Alfonso Costa de Ecuador dendrometría inventario forestal Tectona grandis Coastal region of Ecuador dendrometry forest inventory Tectona grandis The aim of this study was to evaluate the precision and efficiency of the forest inventory method from using Terrestrial Laser Scanner (TLS) to determine dendrometric variables in teak plantations (Tectona grandis Linn. F.). Circular sampling plots of 500 m2 were established in three teak plantations located in the Coastal region of Ecuador. Traditional forest inventory (TFI) and TLS methods were used to determine several dendrometric variables (normal diameter, total height, and crown radius), also recording the work time necessary to complement the inventory of each plot.  The estimates of the dasometric indices for each inventory method and the relative efficiency of TLS with respect to IFT were contrasted using statistical inference tests. The statistical tests did not detect significant differences between the two inventory methods in relation to both the measured dasometric variables and the working times recorded in each plot. The relative efficiency values showed some superiority of TLS method over TFI. Forest inventories of teak plantations based on TLS method is sufficiently accurate for estimating dasometric variables, being more efficient than traditional inventory. El objetivo de la investigación fue evaluar la precisión y eficiencia del método de inventario forestal usando el escáner láser terrestre para la determinación de variables dendrométricas en plantaciones de teca (Tectona grandis Linn. F.). Se establecieron sitios de muestreo circulares de 500 m2 en plantaciones de teca de tres predios de la región Costa de Ecuador donde se usaron las metodologías de inventario forestal tradicional y del escáner láser terrestre, registrando las variables dendrométricas (diámetro normal, altura total y radio de copa) y el tiempo de trabajo necesario para complementar el inventario de cada parcela. Las estimaciones de los índices dasométricos para cada método de inventario y la eficiencia relativa del método del escáner láser terrestre con respecto al inventario forestal tradicional fueron contrastadas mediante pruebas de inferencia estadística. La prueba de contrastes estadísticos aplicada no detectó diferencias significativas entre los dos métodos de inventario en relación tanto con las variables dasométricas medidas como con los tiempos de trabajo registrados en cada parcela. Los valores de eficiencia relativa evidenciaron cierta superioridad del inventario realizado con el escáner láser terrestre sobre el realizado con el inventario forestal tradicional. El presente estudio permite concluir que el método del escáner láser terrestre para la elaboración de inventarios forestales en plantaciones de teca es preciso para la estimación de variables dasométricas, siendo más eficiente que el de inventario tradicional. Instituto de Ecología, A.C. 2021-07-09 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo evaluado por pares application/pdf text/xml https://myb.ojs.inecol.mx/index.php/myb/article/view/e2712097 10.21829/myb.2021.2712097 Madera y Bosques; Vol. 27 No. 1 (2021): Spring 2021 Madera y Bosques; Vol. 27 Núm. 1 (2021): Primavera 2021 2448-7597 1405-0471 spa https://myb.ojs.inecol.mx/index.php/myb/article/view/e2712097/2224 https://myb.ojs.inecol.mx/index.php/myb/article/view/e2712097/2237 10.21829/myb.2019.252297 10.21829/myb.2018.242335 Derechos de autor 2021 Madera y Bosques http://creativecommons.org/licenses/by-nc-sa/4.0
spellingShingle Peñalver Romeo, Alberto
Aguilar Torres, Fernando J.
Nemmaoui, Abderrahim
Rivas Barzola, José Ricardo
Triana Tomalá, Ángel Antonio
Aguilar Torres, Manuel A.
Llanderal, Alfonso
Precision and efficiency of the inventory of teak plantations in Ecuador by using terrestrial laser scanner
title Precision and efficiency of the inventory of teak plantations in Ecuador by using terrestrial laser scanner
title_full Precision and efficiency of the inventory of teak plantations in Ecuador by using terrestrial laser scanner
title_fullStr Precision and efficiency of the inventory of teak plantations in Ecuador by using terrestrial laser scanner
title_full_unstemmed Precision and efficiency of the inventory of teak plantations in Ecuador by using terrestrial laser scanner
title_short Precision and efficiency of the inventory of teak plantations in Ecuador by using terrestrial laser scanner
title_sort precision and efficiency of the inventory of teak plantations in ecuador by using terrestrial laser scanner
url https://myb.ojs.inecol.mx/index.php/myb/article/view/e2712097
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