Composition and spatial structure of five associations of forests of Pinus durangensis
The spatial structure reflects the pattern of arrangement of trees on the ground and is a basic element to understand the dynamics of forest ecosystems. The objective of the present investigation was to evaluate the bivariate structural characteristics of five different associations of Pinus durange...
| Main Authors: | , , , , , , , , |
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| Format: | Online |
| Language: | spa |
| Published: |
Instituto de Ecología, A.C.
2020
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| Online Access: | https://myb.ojs.inecol.mx/index.php/myb/article/view/e2621933 |
| _version_ | 1799769382537134080 |
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| author | Graciano-Ávila, Gabriel Alanís-Rodríguez, Eduardo Rubio-Camacho, Ernesto A. Valdecantos-Dema, Alejandro Aguirre-Calderón, Oscar A. González-Tagle, Marco A. Treviño-Garza, Eduardo Javier Corral-Rivas, José Javier Mora-Olivo, Arturo |
| author_facet | Graciano-Ávila, Gabriel Alanís-Rodríguez, Eduardo Rubio-Camacho, Ernesto A. Valdecantos-Dema, Alejandro Aguirre-Calderón, Oscar A. González-Tagle, Marco A. Treviño-Garza, Eduardo Javier Corral-Rivas, José Javier Mora-Olivo, Arturo |
| author_sort | Graciano-Ávila, Gabriel |
| collection | MYB |
| description | The spatial structure reflects the pattern of arrangement of trees on the ground and is a basic element to understand the dynamics of forest ecosystems. The objective of the present investigation was to evaluate the bivariate structural characteristics of five different associations of Pinus durangensis forests, identifying the similarities and differences in the bivariate distribution of uniformity of angles, dominance and mingling. The data comes from five quadrate sites with an area of 2500 m2, each established in different forests of P. durangensis in the Sierra Madre Occidental. For each site, the average height, average diameter and crown coverage were determined, as well as the species mingling index, angle uniformity and dominance indexes. The indices were combined two to two to obtain three bivariate distributions. The pure forest of P. durangensis presented individuals with higher height, while the largest diameter was found in the association with P. teocote. The mingling index (Mi) indicates that only in the pure forest there is a low species mingling. The uniformity angle index (Wi) shows that trees generally present a random distribution. The values of dominance (Ui) show that in all the sites there are all the social classes represented in an equitable way. The indexes and their combinations adequately describe the spatial distribution of the trees and their relationship with their closest neighbors. The information obtained from the combination of the structural variables contribute to improve the understanding of the spatial structure of the forest, and in addition to contributing to the regulation of cutting intensity and ensuring sustainable management. |
| format | Online |
| id | oai:oai.myb.ojs.inecol.mx:article-1933 |
| 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-19332022-11-29T22:37:45Z Composition and spatial structure of five associations of forests of Pinus durangensis Composición y estructura espacial de cinco asociaciones de bosques de Pinus durangensis Graciano-Ávila, Gabriel Alanís-Rodríguez, Eduardo Rubio-Camacho, Ernesto A. Valdecantos-Dema, Alejandro Aguirre-Calderón, Oscar A. González-Tagle, Marco A. Treviño-Garza, Eduardo Javier Corral-Rivas, José Javier Mora-Olivo, Arturo forest ecosystem dynamics bivariate distribution dominance mixture uniformity dinámica de ecosistemas forestales distribución bivariada dominancia mezcla uniformidad The spatial structure reflects the pattern of arrangement of trees on the ground and is a basic element to understand the dynamics of forest ecosystems. The objective of the present investigation was to evaluate the bivariate structural characteristics of five different associations of Pinus durangensis forests, identifying the similarities and differences in the bivariate distribution of uniformity of angles, dominance and mingling. The data comes from five quadrate sites with an area of 2500 m2, each established in different forests of P. durangensis in the Sierra Madre Occidental. For each site, the average height, average diameter and crown coverage were determined, as well as the species mingling index, angle uniformity and dominance indexes. The indices were combined two to two to obtain three bivariate distributions. The pure forest of P. durangensis presented individuals with higher height, while the largest diameter was found in the association with P. teocote. The mingling index (Mi) indicates that only in the pure forest there is a low species mingling. The uniformity angle index (Wi) shows that trees generally present a random distribution. The values of dominance (Ui) show that in all the sites there are all the social classes represented in an equitable way. The indexes and their combinations adequately describe the spatial distribution of the trees and their relationship with their closest neighbors. The information obtained from the combination of the structural variables contribute to improve the understanding of the spatial structure of the forest, and in addition to contributing to the regulation of cutting intensity and ensuring sustainable management. La estructura espacial refleja el patrón de disposición de los árboles sobre el terreno y es un elemento básico para entender la dinámica de los ecosistemas forestales. El objetivo de la presente investigación fue evaluar las características estructurales bivariadas de cinco asociaciones diferentes de bosques de Pinus durangensis, identificando las similitudes y diferencias en la distribución bivariada de uniformidad de ángulos, dominancia y mezcla. Los datos provienen de cinco sitios cuadrados con superficie de 2500 m2, establecidos cada uno en diferentes bosques de P. durangensis en la Sierra Madre Occidental. Para cada sitio se determinó altura promedio, diámetro promedio y cobertura de copa, así como índices de mezcla de especies, uniformidad de ángulos y dominancia. Los índices se combinaron dos a dos para obtener tres distribuciones bivariantes. El bosque puro de P. durangensis presentó los individuos con mayor altura, mientras que el mayor diámetro fue para la asociación con P. teocote. El índice de mezcla (Mi) indica que solo en el bosque puro existe una baja mezcla de especies. El índice de uniformidad de ángulos (Wi) muestra que los árboles, de manera general, tienen una distribución aleatoria. Los valores de dominancia (Ui) muestran que en todos los sitios existen todas las clases sociales representadas de manera equitativa. Los índices y sus combinaciones describen adecuadamente la distribución espacial de los árboles y su relación con sus vecinos más cercanos. La información obtenida de la combinación de las variables estructurales contribuye a mejorar la comprensión de la estructura espacial del bosque y contribuye a la regulación de la intensidad de corta y garantizar una gestión sostenible. Instituto de Ecología, A.C. 2020-04-23 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/e2621933 10.21829/myb.2020.2621933 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/e2621933/2097 https://myb.ojs.inecol.mx/index.php/myb/article/view/e2621933/2187 10.21829/myb.2018.24258 10.21829/myb.2018.241219 Derechos de autor 2020 Madera y Bosques http://creativecommons.org/licenses/by-nc-sa/4.0 |
| spellingShingle | Graciano-Ávila, Gabriel Alanís-Rodríguez, Eduardo Rubio-Camacho, Ernesto A. Valdecantos-Dema, Alejandro Aguirre-Calderón, Oscar A. González-Tagle, Marco A. Treviño-Garza, Eduardo Javier Corral-Rivas, José Javier Mora-Olivo, Arturo Composition and spatial structure of five associations of forests of Pinus durangensis |
| title | Composition and spatial structure of five associations of forests of Pinus durangensis |
| title_full | Composition and spatial structure of five associations of forests of Pinus durangensis |
| title_fullStr | Composition and spatial structure of five associations of forests of Pinus durangensis |
| title_full_unstemmed | Composition and spatial structure of five associations of forests of Pinus durangensis |
| title_short | Composition and spatial structure of five associations of forests of Pinus durangensis |
| title_sort | composition and spatial structure of five associations of forests of pinus durangensis |
| url | https://myb.ojs.inecol.mx/index.php/myb/article/view/e2621933 |
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