Modeling productive efficiency of lenga (Nothofagus pumilio) logs for solid wood production in the Chilean Patagonia
A productive and economic analysis was conducted on a sample of 184 logs of lenga (Nothofagus pumilio) from Monte Alto Land, XII Region, Chile. Logs were allocated to produce select (S), regular (C1, C2 and C3), and short lumber qualities. The productive efficiency analysis was done by production st...
| Auteurs principaux: | , , , |
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| Format: | Online |
| Langue: | spa |
| Publié: |
Instituto de Ecología, A.C.
2019
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| Accès en ligne: | https://myb.ojs.inecol.mx/index.php/myb/article/view/e2531746 |
| _version_ | 1799769355619139584 |
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| author | Alzamora, Rosa M. Pinto, Antonio Ulloa, Carolina Aguilera, Alfredo |
| author_facet | Alzamora, Rosa M. Pinto, Antonio Ulloa, Carolina Aguilera, Alfredo |
| author_sort | Alzamora, Rosa M. |
| collection | MYB |
| description | A productive and economic analysis was conducted on a sample of 184 logs of lenga (Nothofagus pumilio) from Monte Alto Land, XII Region, Chile. Logs were allocated to produce select (S), regular (C1, C2 and C3), and short lumber qualities. The productive efficiency analysis was done by production stochastic frontiers Cobb-Douglas and Translog. This approach is based on production functions and generates technical efficiency measures (EFt) to assess production systems. Logs attributes used as inputs were small end diameter, length and process productivity. The average EFt values of logs were 0,85 and 0,78 calculated by Cobb-Douglas and Translog frontiers, respectively. These measures imply that, on average, the logs could use reduced attributes by 15% or 22% and still achieve the same output. The most efficient logs (EFt ≥ 0,9) were characterized by obtaining an average small end diameter of 33 cm, and an average recovery value of USD 33 m-3 and 29 m-3, for Cobb-Douglas and Translog frontiers, respectively. There were significant positive correlations between efficiency and the logs recovery values (r = 0,53; p ≤ 0,05). |
| format | Online |
| id | oai:oai.myb.ojs.inecol.mx:article-1746 |
| institution | Madera y Bosques |
| language | spa |
| publishDate | 2019 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.myb.ojs.inecol.mx:article-17462022-11-29T22:45:27Z Modeling productive efficiency of lenga (Nothofagus pumilio) logs for solid wood production in the Chilean Patagonia Modelamiento de la eficiencia productiva de trozas de lenga (Nothofagus pumilio) destinadas a la producción de madera aserrada en la Patagonia chilena Alzamora, Rosa M. Pinto, Antonio Ulloa, Carolina Aguilera, Alfredo sawmill attributes native forest stochastic frontier residual log value aserrío atributos bosque nativo frontera estocástica valor residual de la troza A productive and economic analysis was conducted on a sample of 184 logs of lenga (Nothofagus pumilio) from Monte Alto Land, XII Region, Chile. Logs were allocated to produce select (S), regular (C1, C2 and C3), and short lumber qualities. The productive efficiency analysis was done by production stochastic frontiers Cobb-Douglas and Translog. This approach is based on production functions and generates technical efficiency measures (EFt) to assess production systems. Logs attributes used as inputs were small end diameter, length and process productivity. The average EFt values of logs were 0,85 and 0,78 calculated by Cobb-Douglas and Translog frontiers, respectively. These measures imply that, on average, the logs could use reduced attributes by 15% or 22% and still achieve the same output. The most efficient logs (EFt ≥ 0,9) were characterized by obtaining an average small end diameter of 33 cm, and an average recovery value of USD 33 m-3 and 29 m-3, for Cobb-Douglas and Translog frontiers, respectively. There were significant positive correlations between efficiency and the logs recovery values (r = 0,53; p ≤ 0,05). Un análisis productivo y económico fue realizado sobre una muestra de 184 trozas de lenga (Nothofagus pumilio) obtenidas en el Predio Monte Alto, XII Región, Chile. Las trozas se destinaron a producir las calidades: selecta (S) y común (C1, C2 y C3), y maderas cortas de ancho variable. El análisis de eficiencia productiva se realizó utilizando dos fronteras de producción estocásticas (FE) tipo Cobb-Douglas y Translog. Este enfoque permite modelar funciones de producción y obtener medidas de eficiencia técnica (EFt). Los atributos de troza usados en los modelos fueron diámetro menor, largo y la productividad del proceso. La EFt promedio de las trozas fue 0,85 y 0,78 calculada con FE Cobb-Douglas y Translog, respectivamente, lo que implica que en promedio las trozas podrían reducir el uso de los insumos en 15% o 22% y alcanzar el mismo nivel de producción. Las trozas con mayor EFt (≥ 0,9) se caracterizaron por presentar un diámetro menor promedio de 33 cm en ambos modelos y por generar un valor de recuperación promedio de USD 33 m-3 (a precios de 2017) y USD 29 m-3, respectivamente. Hubo correlaciones positivas y significativas entre la eficiencia, el volumen de los productos de mayor precio y el valor residual de las trozas (r = 0,53; p ≤ 0,05). Instituto de Ecología, A.C. 2019-12-13 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo evaluado por pares application/pdf application/xml https://myb.ojs.inecol.mx/index.php/myb/article/view/e2531746 10.21829/myb.2019.2531746 Madera y Bosques; Vol. 25 No. 3 (2019): Otoño 2019 Madera y Bosques; Vol. 25 Núm. 3 (2019): Otoño 2019 2448-7597 1405-0471 spa https://myb.ojs.inecol.mx/index.php/myb/article/view/e2531746/1989 https://myb.ojs.inecol.mx/index.php/myb/article/view/e2531746/2034 Derechos de autor 2019 Madera y Bosques |
| spellingShingle | Alzamora, Rosa M. Pinto, Antonio Ulloa, Carolina Aguilera, Alfredo Modeling productive efficiency of lenga (Nothofagus pumilio) logs for solid wood production in the Chilean Patagonia |
| title | Modeling productive efficiency of lenga (Nothofagus pumilio) logs for solid wood production in the Chilean Patagonia |
| title_full | Modeling productive efficiency of lenga (Nothofagus pumilio) logs for solid wood production in the Chilean Patagonia |
| title_fullStr | Modeling productive efficiency of lenga (Nothofagus pumilio) logs for solid wood production in the Chilean Patagonia |
| title_full_unstemmed | Modeling productive efficiency of lenga (Nothofagus pumilio) logs for solid wood production in the Chilean Patagonia |
| title_short | Modeling productive efficiency of lenga (Nothofagus pumilio) logs for solid wood production in the Chilean Patagonia |
| title_sort | modeling productive efficiency of lenga (nothofagus pumilio) logs for solid wood production in the chilean patagonia |
| url | https://myb.ojs.inecol.mx/index.php/myb/article/view/e2531746 |
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