Whole-stand growth and yield models for Pinus patula
Predicting the growth and yield of timber tree species is a prerequisite for planning sustainable forest management. The objective was to update several functions that integrate a compatible growth and yield system for Pinus patula, developed under the explicit whole-stand model approach. System par...
| Main Authors: | , , , , , , |
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| Format: | Online |
| Language: | spa |
| Published: |
Instituto de Ecología, A.C.
2016
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| Online Access: | https://myb.ojs.inecol.mx/index.php/myb/article/view/459 |
| _version_ | 1799769225615638528 |
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| author | Santiago-García, Wenceslao De los Santos-Posadas, Héctor Manuel Ángeles-Pérez, Gregorio Valdez-Lazalde, José René Corral-Rivas, José Javier Rodríguez-Ortiz, Gerardo Santiago-García, Elías |
| author_facet | Santiago-García, Wenceslao De los Santos-Posadas, Héctor Manuel Ángeles-Pérez, Gregorio Valdez-Lazalde, José René Corral-Rivas, José Javier Rodríguez-Ortiz, Gerardo Santiago-García, Elías |
| author_sort | Santiago-García, Wenceslao |
| collection | MYB |
| description | Predicting the growth and yield of timber tree species is a prerequisite for planning sustainable forest management. The objective was to update several functions that integrate a compatible growth and yield system for Pinus patula, developed under the explicit whole-stand model approach. System parameters were estimated using seemingly unrelated regression. For that, forest biometric information was used from four periodical inventories conducted in 42 permanent plots of 400 m2 in Hidalgo, Mexico. Almost all the functions of the system had good fit and satisfactory graphical behavior in their original structure. A polymorphic growth pattern explains stand productivity, which is interrelated with growth equations of basal area, mean diameter and total stem volume per hectare. The mortality function corresponds to an exponential model fitted under non-linear least squares method. The re-fitted system broadened the range of the growth equations to 31 years. The new system suggests a maximizing volume rotation of about 20 years for the average site. These results suggest that the commonly used 40 year rotation period used in the management plans in the region could be shortened if a proper density management strategy is applied. |
| format | Online |
| id | oai:oai.myb.ojs.inecol.mx:article-459 |
| institution | Madera y Bosques |
| language | spa |
| publishDate | 2016 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.myb.ojs.inecol.mx:article-4592022-11-29T23:38:21Z Whole-stand growth and yield models for Pinus patula Modelos de crecimiento y rendimiento de totalidad del rodal para Pinus patula Santiago-García, Wenceslao De los Santos-Posadas, Héctor Manuel Ángeles-Pérez, Gregorio Valdez-Lazalde, José René Corral-Rivas, José Javier Rodríguez-Ortiz, Gerardo Santiago-García, Elías algebraic difference compatible models explicit prediction growth system optimum rotation age diferencia algebraica modelos compatibles predicción explícita sistema de crecimiento turno técnico Predicting the growth and yield of timber tree species is a prerequisite for planning sustainable forest management. The objective was to update several functions that integrate a compatible growth and yield system for Pinus patula, developed under the explicit whole-stand model approach. System parameters were estimated using seemingly unrelated regression. For that, forest biometric information was used from four periodical inventories conducted in 42 permanent plots of 400 m2 in Hidalgo, Mexico. Almost all the functions of the system had good fit and satisfactory graphical behavior in their original structure. A polymorphic growth pattern explains stand productivity, which is interrelated with growth equations of basal area, mean diameter and total stem volume per hectare. The mortality function corresponds to an exponential model fitted under non-linear least squares method. The re-fitted system broadened the range of the growth equations to 31 years. The new system suggests a maximizing volume rotation of about 20 years for the average site. These results suggest that the commonly used 40 year rotation period used in the management plans in the region could be shortened if a proper density management strategy is applied. La predicción del crecimiento y el rendimiento de una especie forestal maderable es un requisito fundamental para planificar su manejo racional. El objetivo de este trabajo fue actualizar las funciones que componen un sistema compatible de crecimiento y rendimiento para Pinus patula, desarrollado bajo el enfoque de modelos explícitos de totalidad del rodal. Se reajustaron los parámetros del sistema mediante la técnica de regresión aparentemente no relacionada. Para ello, se utilizó información dasométrica derivada de cuatro inventarios realizados periódicamente en 42 parcelas permanentes de muestreo de 400 m2 en Hidalgo, México. La estructura de las funciones originales del sistema, en su mayoría, generaron buen ajuste y comportamiento gráfico satisfactorio. La productividad del rodal se describe mediante un patrón polimórfico de crecimiento, el cual está interrelacionado con las ecuaciones de área basal, diámetro promedio y volumen total de fuste por hectárea. La función de mortalidad corresponde a un modelo exponencial ajustado bajo mínimos cuadrados no lineales. El reajuste del sistema permitió ampliar el rango de validez de las ecuaciones de crecimiento a 31 años de edad del rodal. El nuevo sistema sugiere un turno técnico que maximiza el volumen de alrededor de 20 años para el sitio promedio. Este resultado sugiere que el turno de 40 años, actualmente usado en los planes de manejo en la región, puede ser acortado, siempre y cuando la densidad del rodal se maneje correctamente. Instituto de Ecología, A.C. 2016-02-25 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo evaluado por pares application/pdf text/html https://myb.ojs.inecol.mx/index.php/myb/article/view/459 10.21829/myb.2015.213459 Madera y Bosques; Vol. 21 No. 3 (2015): Otoño Madera y Bosques; Vol. 21 Núm. 3 (2015): Otoño 2448-7597 1405-0471 spa https://myb.ojs.inecol.mx/index.php/myb/article/view/459/627 https://myb.ojs.inecol.mx/index.php/myb/article/view/459/639 Derechos de autor 2016 Madera y Bosques |
| spellingShingle | Santiago-García, Wenceslao De los Santos-Posadas, Héctor Manuel Ángeles-Pérez, Gregorio Valdez-Lazalde, José René Corral-Rivas, José Javier Rodríguez-Ortiz, Gerardo Santiago-García, Elías Whole-stand growth and yield models for Pinus patula |
| title | Whole-stand growth and yield models for Pinus patula |
| title_full | Whole-stand growth and yield models for Pinus patula |
| title_fullStr | Whole-stand growth and yield models for Pinus patula |
| title_full_unstemmed | Whole-stand growth and yield models for Pinus patula |
| title_short | Whole-stand growth and yield models for Pinus patula |
| title_sort | whole-stand growth and yield models for pinus patula |
| url | https://myb.ojs.inecol.mx/index.php/myb/article/view/459 |
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