Multivariate approach in timber harvesting experiments in forest plantations
This work was carried out with the objective of evaluating, technically and economically, timber extraction in plantations of Pinus caribaea var. caribaea of Macurije forest company located in the province of Pinar del Río, Cuba. For this, time and movement studies were carried out using "produ...
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| Format: | Online |
| Sprache: | spa |
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Instituto de Ecología, A.C.
2020
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| Online Zugang: | https://myb.ojs.inecol.mx/index.php/myb/article/view/e2621934 |
| _version_ | 1799769383054082048 |
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| author | Guera, Ouorou Ganni Mariel da Silva, José Antônio Aleixo Ferreira, Rinaldo Luiz Caraciolo Álvarez Lazo, Daniel Alberto Barrero Medel, Héctor Díaz Pita, Andrés Loreto |
| author_facet | Guera, Ouorou Ganni Mariel da Silva, José Antônio Aleixo Ferreira, Rinaldo Luiz Caraciolo Álvarez Lazo, Daniel Alberto Barrero Medel, Héctor Díaz Pita, Andrés Loreto |
| author_sort | Guera, Ouorou Ganni Mariel |
| collection | MYB |
| description | This work was carried out with the objective of evaluating, technically and economically, timber extraction in plantations of Pinus caribaea var. caribaea of Macurije forest company located in the province of Pinar del Río, Cuba. For this, time and movement studies were carried out using "productivity" and "unit cost" of wood extraction as evaluation criteria. The skidders and oxen performance evaluation, in different harvest systems and slope classes, was performed through univariate and multivariate (cost and/or productivity) factorial experiments (3 × 3 × 2), following a randomized block design (B1 = 21 years and B2 = 32 years), with the factors "machinery" and "slope" with three and "harvest systems" with two levels. The feasibility and usefulness of the multivariate approach in the evaluation of timber extraction were evidenced; timber extraction is more viable with the tree length harvest systems in stands of 32 years. The interaction machinery-slope had a significant influence on the variation of the whole cost-productivity. The John Deere 548E skidder, for presenting lower unit cost and higher productivity than the J-80A, is recommended for semi-mechanized timber extraction. The most viable is the yoke of oxen because of its greater profitability. However, due to its low productivity, it can only be used in combination with other machines or during periods of decelerated production. Its exclusive use is impracticable since it would imply significantly increasing its quantity to compensate for its low productivity. |
| format | Online |
| id | oai:oai.myb.ojs.inecol.mx:article-1934 |
| institution | Madera y Bosques |
| language | spa |
| publishDate | 2020 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.myb.ojs.inecol.mx:article-19342022-11-29T22:36:28Z Multivariate approach in timber harvesting experiments in forest plantations Enfoque multivariado en experimentos de extracción de madera en plantaciones forestales Guera, Ouorou Ganni Mariel da Silva, José Antônio Aleixo Ferreira, Rinaldo Luiz Caraciolo Álvarez Lazo, Daniel Alberto Barrero Medel, Héctor Díaz Pita, Andrés Loreto forest harvesting Cuba unit cost multivariate factorial arrangement productivity aprovechamiento forestal Cuba costo unitario arreglo factorial multivariado productividad This work was carried out with the objective of evaluating, technically and economically, timber extraction in plantations of Pinus caribaea var. caribaea of Macurije forest company located in the province of Pinar del Río, Cuba. For this, time and movement studies were carried out using "productivity" and "unit cost" of wood extraction as evaluation criteria. The skidders and oxen performance evaluation, in different harvest systems and slope classes, was performed through univariate and multivariate (cost and/or productivity) factorial experiments (3 × 3 × 2), following a randomized block design (B1 = 21 years and B2 = 32 years), with the factors "machinery" and "slope" with three and "harvest systems" with two levels. The feasibility and usefulness of the multivariate approach in the evaluation of timber extraction were evidenced; timber extraction is more viable with the tree length harvest systems in stands of 32 years. The interaction machinery-slope had a significant influence on the variation of the whole cost-productivity. The John Deere 548E skidder, for presenting lower unit cost and higher productivity than the J-80A, is recommended for semi-mechanized timber extraction. The most viable is the yoke of oxen because of its greater profitability. However, due to its low productivity, it can only be used in combination with other machines or during periods of decelerated production. Its exclusive use is impracticable since it would imply significantly increasing its quantity to compensate for its low productivity. El presente trabajo fue realizado con el objetivo de evaluar, técnica y económicamente la extracción de El presente trabajo se realizó con el objetivo de evaluar, técnica y económicamente la extracción de madera en plantaciones de Pinus caribaea var. caribaea de la empresa forestal Macurije, ubicada en la provincia de Pinar del Río, Cuba. Para ello, se llevaron a cabo estudios de tiempos y movimientos teniendo como criterios de evaluación "productividad" y "costo unitario" de extracción de la madera. La evaluación del desempeño de los tractores articulados (skidders) y de las yuntas de bueyes en diferentes sistemas de aprovechamiento y clases de pendiente se realizó por medio de experimentos factoriales (3 × 3 × 2) univariados y multivariados (costo unitario e/o productividad), siguiendo un diseño al azar en bloques (B1 = 21 años y B2 = 32 años), con los factores "maquinaria" y "pendiente" con tres niveles y "sistema de aprovechamiento" con dos niveles. Se evidenciaron la viabilidad y la utilidad del enfoque multivariado en la evaluación de la extracción de madera; es más viable extraer la madera con el sistema de tronco entero en plantaciones de 32 años. La interacción maquinaria-pendiente tuvo influencia significativa en la variación del conjunto costo-productividad. El skidder John Deere 548E, por presentar menor costo unitario y mayor productividad que el J-80A, es el recomendado para la extracción semimecanizada de la madera. El más viable es la yunta de bueyes por su mayor rentabilidad. Sin embargo, por su baja productividad, solo podrá ser utilizado en combinación con otras máquinas o en periodos de producción desacelerada. Su uso exclusivo no es práctico ya que implicaría aumentar significativamente su cantidad para compensar su baja productividad. Instituto de Ecología, A.C. 2020-04-24 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/e2621934 10.21829/myb.2020.2621934 Madera y Bosques; Vol. 26 No. 2 (2020): Verano 2020 Madera y Bosques; Vol. 26 Núm. 2 (2020): Verano 2020 2448-7597 1405-0471 spa https://myb.ojs.inecol.mx/index.php/myb/article/view/e2621934/2082 https://myb.ojs.inecol.mx/index.php/myb/article/view/e2621934/2199 10.21829/myb.2017.232240 Derechos de autor 2020 Madera y Bosques http://creativecommons.org/licenses/by-nc-sa/4.0 |
| spellingShingle | Guera, Ouorou Ganni Mariel da Silva, José Antônio Aleixo Ferreira, Rinaldo Luiz Caraciolo Álvarez Lazo, Daniel Alberto Barrero Medel, Héctor Díaz Pita, Andrés Loreto Multivariate approach in timber harvesting experiments in forest plantations |
| title | Multivariate approach in timber harvesting experiments in forest plantations |
| title_full | Multivariate approach in timber harvesting experiments in forest plantations |
| title_fullStr | Multivariate approach in timber harvesting experiments in forest plantations |
| title_full_unstemmed | Multivariate approach in timber harvesting experiments in forest plantations |
| title_short | Multivariate approach in timber harvesting experiments in forest plantations |
| title_sort | multivariate approach in timber harvesting experiments in forest plantations |
| url | https://myb.ojs.inecol.mx/index.php/myb/article/view/e2621934 |
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