Tree and shrub structure composition and diversity in three forest management conditions in Ixtlan de Juarez, Oaxaca
Forest activities play a critical role in the natural dynamics of this ecosystem. The aim of this work was to evaluate the effect in structure composition and forest and shrub diversity of the forest management practices applied in Ixtlán de Juárez, Oaxaca. We established 15 sampling areas distribut...
| Main Authors: | , , , , |
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| Format: | Online |
| Sprog: | spa |
| Udgivet: |
Instituto de Ecología, A.C.
2018
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| Online adgang: | https://myb.ojs.inecol.mx/index.php/myb/article/view/e2431649 |
| _version_ | 1799769347901620224 |
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| author | Vásquez-Cortez, Vicente Florencio Clark-Tapia, Ricardo Manzano-Méndez, Filemón González-Adame, Gabriel Aguirre-Hidalgo, Victor |
| author_facet | Vásquez-Cortez, Vicente Florencio Clark-Tapia, Ricardo Manzano-Méndez, Filemón González-Adame, Gabriel Aguirre-Hidalgo, Victor |
| author_sort | Vásquez-Cortez, Vicente Florencio |
| collection | MYB |
| description | Forest activities play a critical role in the natural dynamics of this ecosystem. The aim of this work was to evaluate the effect in structure composition and forest and shrub diversity of the forest management practices applied in Ixtlán de Juárez, Oaxaca. We established 15 sampling areas distributed among three silvicultural treatments: not harvested strips (FNA), edges (B), and harvested strips (FA) established in a strip clearcut timber harvesting forest. Changes in structure, floristic composition and diversity of trees and shrubs strata are described. Twenty-seven species and nine botanical families were identified, being the most frequent Quercus crassifolia Humb & Bonpl., Pinus pseudostrobus Lindl. and Quercus laurina Humb. & Bonpl. Accumulation species-area curves were estimated, showing that the FNA condition had the highest number of species. Through the importance value index (IVI) and forest value index (IVF) it was found that structural value varied for each species, size class (stems, stalks and saplings), and condition (FNA, B and F). Higher values on IVI and IVF were consistently obtained by the three previously mentioned species in the three conditions. However, stems represented the dominant structure in FNA and B while stalks and saplings were dominant in FA. According to diversity indices, richness was low, but evenness was high in the three conditions (FNA, B, FA). Also, dominance was high in FA. B and FA condition were the most similar between them. We concluded that during the period analyzed the silvicultural practices promote an even-aged forest. However, this pattern is less intense because of FNA presence which could limit arboreal and shrub diversity loss. |
| format | Online |
| id | oai:oai.myb.ojs.inecol.mx:article-1649 |
| institution | Madera y Bosques |
| language | spa |
| publishDate | 2018 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.myb.ojs.inecol.mx:article-16492022-11-29T22:53:46Z Tree and shrub structure composition and diversity in three forest management conditions in Ixtlan de Juarez, Oaxaca Estructura, composición y diversidad arbórea y arbustiva en tres condiciones de manejo forestal de Ixtlán de Juárez, Oaxaca. Vásquez-Cortez, Vicente Florencio Clark-Tapia, Ricardo Manzano-Méndez, Filemón González-Adame, Gabriel Aguirre-Hidalgo, Victor floristic richness species diversity species area curves vertical profile horizontal profile curvas especies área diversidad de especies riqueza florística perfil vertical perfil horizontal. Forest activities play a critical role in the natural dynamics of this ecosystem. The aim of this work was to evaluate the effect in structure composition and forest and shrub diversity of the forest management practices applied in Ixtlán de Juárez, Oaxaca. We established 15 sampling areas distributed among three silvicultural treatments: not harvested strips (FNA), edges (B), and harvested strips (FA) established in a strip clearcut timber harvesting forest. Changes in structure, floristic composition and diversity of trees and shrubs strata are described. Twenty-seven species and nine botanical families were identified, being the most frequent Quercus crassifolia Humb & Bonpl., Pinus pseudostrobus Lindl. and Quercus laurina Humb. & Bonpl. Accumulation species-area curves were estimated, showing that the FNA condition had the highest number of species. Through the importance value index (IVI) and forest value index (IVF) it was found that structural value varied for each species, size class (stems, stalks and saplings), and condition (FNA, B and F). Higher values on IVI and IVF were consistently obtained by the three previously mentioned species in the three conditions. However, stems represented the dominant structure in FNA and B while stalks and saplings were dominant in FA. According to diversity indices, richness was low, but evenness was high in the three conditions (FNA, B, FA). Also, dominance was high in FA. B and FA condition were the most similar between them. We concluded that during the period analyzed the silvicultural practices promote an even-aged forest. However, this pattern is less intense because of FNA presence which could limit arboreal and shrub diversity loss. Las prácticas forestales implican una serie de actividades que pueden generar impactos negativos en la dinámica natural de este ecosistema. El objetivo de este estudio fue evaluar el efecto del manejo forestal en la estructura, composición y diversidad arbórea y arbustiva en Ixtlán de Juárez, Oaxaca. Para ello se establecieron 15 unidades de muestreo distribuidas en tres condiciones de manejo: franjas no aprovechadas (FNA), bordes (B) y franjas aprovechadas (FA) establecidos en bosques con tratamiento de matarrasa. Se describen los cambios en estructura, composicón florística y diversidad de los estratos de árboles y arbustos. Durante el periodo de estudio se identificaron 27 especies vegetales distribuidas en nueve familias. Las especies más frecuentes fueron: Quercus crassifolia Humb & Bonpl., Pinus pseudostrobus Lindl. y Quercus laurina Humb. & Bonpl. Las curvas de acumulación de especies mostraron que las FNA tuvieron un mayor número de especies que las otras dos áreas. La estructura, estimada a partir de los índices de valor de importancia (IVI) y de valor forestal (IVF), estuvo asociada a la presencia de las tres especies previamente mencionadas en las tres condiciones. La categoría fustal fue la dominante en FNA y B; mientras que en FA las categorías dominantes fueron las de latizal y brinzal. Los valores de riqueza fueron bajos en FNA, B, FA, pero con valores altos de equidad. El valor de dominancia fue solamente alto en FA; B y FA fueron los más semejantes entre sí. Se concluye que las prácticas silviculturales promueven la conformación de un bosque coetáneo con dominancia de pinos. Este patrón es menos severo dada la presencia de las FNA, las cuales podrían limitar la pérdida de la diversidad arbórea y arbustiva. Instituto de Ecología, A.C. 2018-11-26 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/e2431649 10.21829/myb.2018.2431649 Madera y Bosques; Vol. 24 No. 3 (2018): Otoño 2018 Madera y Bosques; Vol. 24 Núm. 3 (2018): Otoño 2018 2448-7597 1405-0471 spa https://myb.ojs.inecol.mx/index.php/myb/article/view/e2431649/1829 https://myb.ojs.inecol.mx/index.php/myb/article/view/e2431649/1894 Derechos de autor 2018 Madera y Bosques |
| spellingShingle | Vásquez-Cortez, Vicente Florencio Clark-Tapia, Ricardo Manzano-Méndez, Filemón González-Adame, Gabriel Aguirre-Hidalgo, Victor Tree and shrub structure composition and diversity in three forest management conditions in Ixtlan de Juarez, Oaxaca |
| title | Tree and shrub structure composition and diversity in three forest management conditions in Ixtlan de Juarez, Oaxaca |
| title_full | Tree and shrub structure composition and diversity in three forest management conditions in Ixtlan de Juarez, Oaxaca |
| title_fullStr | Tree and shrub structure composition and diversity in three forest management conditions in Ixtlan de Juarez, Oaxaca |
| title_full_unstemmed | Tree and shrub structure composition and diversity in three forest management conditions in Ixtlan de Juarez, Oaxaca |
| title_short | Tree and shrub structure composition and diversity in three forest management conditions in Ixtlan de Juarez, Oaxaca |
| title_sort | tree and shrub structure composition and diversity in three forest management conditions in ixtlan de juarez, oaxaca |
| url | https://myb.ojs.inecol.mx/index.php/myb/article/view/e2431649 |
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