Biblioteca Digital de VanguardiaBiomass function for Acacia caven (Mol.) Mol. distributed in the dry land areas of south central Chile
Acacia caven is a key native species in the dry land region of south-central Chile. It is a species of high social and productive interest to landowners. Therefore, this study proposes a biomass function for A. caven, which involves incorporating predictor variables that are easily obtainable in the...
| Autores principales: | , , , , , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
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Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias
2018
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| Acceso en línea: | http://bdigital.uncu.edu.ar/11695 |
| _version_ | 1782342560550748160 |
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| author | Lucero Ignamarca, Alejandro Muñoz Sáez, Fernando Cancino Cancino, Jorge Sotomayor Garreton, Alvaro Dube, Francis Villarroel Muñoz, Arnoldo Sáez Carrillo, Katia |
| author_facet | Lucero Ignamarca, Alejandro Muñoz Sáez, Fernando Cancino Cancino, Jorge Sotomayor Garreton, Alvaro Dube, Francis Villarroel Muñoz, Arnoldo Sáez Carrillo, Katia |
| author_sort | Lucero Ignamarca, Alejandro |
| collection | Repositorio |
| description | Acacia caven is a key native species in the dry land region of south-central Chile. It
is a species of high social and productive interest to landowners. Therefore, this study
proposes a biomass function for A. caven, which involves incorporating predictor variables
that are easily obtainable in the field and less complex than those used in already existing
functions for the species. Due to the multi-purpose nature of the species and its potential
for silvopastoral systems, these functions typify important planning tools to improve the
management of this plant resource. To generate the biomass function, the methodology
of destructive analysis of components was used on a total of 71 trees. These trees were
selected, cut and weighed in the field to generate and test different models. Statistical
analysis models were used and root collar diameter, diameter at breast height and total
height served as predictor variables, resulting in a good adjustment of the models (R2
adjusted the 0.97 for stem-branches, 0.90 for stems and 0.96 for total biomass), with high
correlations between estimated and real values. These functions may be used safely in
plant formations of A. caven located in the same distribution area and within the range of
the used variables. In the future, however, they require validation with new measurements
in other sectors than the area considered to increase geographical representativeness. |
| format | Artículo |
| id | uncu-11695 |
| institution | Biblioteca Digital - UNCUYO |
| language | Inglés |
| publishDate | 2018 |
| publisher | Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias
|
| record_format | ojs |
| spelling | uncu-116952019-03-06T17:29:09Z Biomass function for Acacia caven (Mol.) Mol. distributed in the dry land areas of south central Chile Función de biomasa para Acacia caven (Mol.) Mol. distribuida en áreas secas del centro sur de Chile Lucero Ignamarca, Alejandro Muñoz Sáez, Fernando Cancino Cancino, Jorge Sotomayor Garreton, Alvaro Dube, Francis Villarroel Muñoz, Arnoldo Sáez Carrillo, Katia Biomasa Acacia Chile Estepa forestal Sistemas silvopastoriles Análisis estadístico Vegetación Espino Steppe Semi-arid regions of Chile Silvopastoral systems Acacia caven Zona semiárida de Chile Sistemas silvopastorales Espino Acacia caven is a key native species in the dry land region of south-central Chile. It is a species of high social and productive interest to landowners. Therefore, this study proposes a biomass function for A. caven, which involves incorporating predictor variables that are easily obtainable in the field and less complex than those used in already existing functions for the species. Due to the multi-purpose nature of the species and its potential for silvopastoral systems, these functions typify important planning tools to improve the management of this plant resource. To generate the biomass function, the methodology of destructive analysis of components was used on a total of 71 trees. These trees were selected, cut and weighed in the field to generate and test different models. Statistical analysis models were used and root collar diameter, diameter at breast height and total height served as predictor variables, resulting in a good adjustment of the models (R2 adjusted the 0.97 for stem-branches, 0.90 for stems and 0.96 for total biomass), with high correlations between estimated and real values. These functions may be used safely in plant formations of A. caven located in the same distribution area and within the range of the used variables. In the future, however, they require validation with new measurements in other sectors than the area considered to increase geographical representativeness. Acacia caven, es una de las principales especies nativas presentes en el secano interior de la zona central de Chile. Es una especie que tiene un alto interés social y productivo para los propietarios de este recurso. En este sentido, el objetivo de este estudio es proponer una función de biomasa validada para A. caven, y que incorpore variables predictoras de fácil obtención en terreno y de menor complejidad que las consideradas en funciones ya conocidas para la especie. Dadas las características de especie multipropósito y su potencial para su uso en sistemas silvopastorales, estas funciones son importantes herramientas de planificación para mejorar la gestión y manejo de este recurso vegetacional. Para la generación de la función de biomasa, se utilizó una metodología de análisis destructivo por componentes de 71 árboles, los cuales fueron seleccionados, volteados y pesados en terreno, para posteriormente generar y probar diferentes modelos. A través de análisis estadísticos se seleccionaron modelos que utilizan como variables predictoras el diámetro a la altura del cuello, diámetro a la altura del pecho y altura total. Los resultados muestran un buen ajuste de los modelos (R2 ajust. de 0,97 para fuste-ramas, 0,90 para ramillas y 0,96 para biomasa total), lo que indica un alto nivel de correlación entre valores estimados y valores reales. Estas funciones se pueden utilizar con seguridad en formaciones vegetacionales de A. caven que se ubiquen en la misma zona distribucional del recurso y dentro de los rangos de las variables utilizadas, siendo conveniente en el futuro validarlas con nuevas mediciones de sectores distintos al área considerada para estos análisis, aumentando su representatividad geográfica. Fil: Lucero Ignamarca, Alejandro. Universidad de Concepción (Chile) Fil: Muñoz Sáez, Fernando. Universidad de Concepción (Chile) Fil: Cancino Cancino, Jorge. Universidad de Concepción (Chile) Fil: Sotomayor Garreton, Alvaro. Universidad de Concepción (Chile) Fil: Dube, Francis. Universidad de Concepción (Chile) Fil: Villarroel Muñoz, Arnoldo. Universidad de Concepción (Chile) Fil: Sáez Carrillo, Katia. Universidad de Concepción (Chile) Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias 78 Revista de la Facultad de Ciencias Agrarias Vol. 50, no. 2 Revista de la Facultad de Ciencias Agrarias, Vol. 50, no. 2 2018-12-18 eng Inglés http://bdigital.uncu.edu.ar/11479 info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar/ article info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias http://bdigital.uncu.edu.ar/11695 |
| spellingShingle | Biomasa Acacia Chile Estepa forestal Sistemas silvopastoriles Análisis estadístico Vegetación Espino Steppe Semi-arid regions of Chile Silvopastoral systems Acacia caven Zona semiárida de Chile Sistemas silvopastorales Espino Lucero Ignamarca, Alejandro Muñoz Sáez, Fernando Cancino Cancino, Jorge Sotomayor Garreton, Alvaro Dube, Francis Villarroel Muñoz, Arnoldo Sáez Carrillo, Katia Biomass function for Acacia caven (Mol.) Mol. distributed in the dry land areas of south central Chile |
| title | Biomass function for Acacia caven (Mol.) Mol. distributed in the dry land areas of south central Chile
|
| title_full | Biomass function for Acacia caven (Mol.) Mol. distributed in the dry land areas of south central Chile
|
| title_fullStr | Biomass function for Acacia caven (Mol.) Mol. distributed in the dry land areas of south central Chile
|
| title_full_unstemmed | Biomass function for Acacia caven (Mol.) Mol. distributed in the dry land areas of south central Chile
|
| title_short | Biomass function for Acacia caven (Mol.) Mol. distributed in the dry land areas of south central Chile
|
| title_sort | biomass function for acacia caven (mol.) mol. distributed in the dry land areas of south central chile |
| topic | Biomasa Acacia Chile Estepa forestal Sistemas silvopastoriles Análisis estadístico Vegetación Espino Steppe Semi-arid regions of Chile Silvopastoral systems Acacia caven Zona semiárida de Chile Sistemas silvopastorales Espino |
| url | http://bdigital.uncu.edu.ar/11695 |