Estructura y composición de un bosque húmedo tropical explotado en la región norte de Costa Rica

Autores
González Jiménez, Eugenio; Chaves Salas, Eladio
Año de publicación
1994
Idioma
español castellano
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Fil: González J., Eugenio. Texas A & M University. Departamento of Forest Cience; Estados Unidos.
Fil: Chaves S., Eladio. Universidad Nacional de Costa Rica. Escuela de Ciencias Ambientales; Costa Rica.
The structure, composition and silvicultural characteristics of the natural regeneration were studied in a harvested tropical rainforest, located in Sarapiqui, Costa Rica (10º 32' N, 84º 04' W). Three years before harvesting the forest, palms, lianas and noncommercial plants were cut and in 1984 a commercial volume of 40 m3/ha was logged. The natural regeneration samplíng was conducted three years after logging the forest. Using concentric circular plots, trees with a DBH greater than 10 cm were sampled in 100 m2 plots; saplings with DBH less than 10 cm and taller than 1.5 m in 25 m2 plots, and seedlings taller than 30 cm and less than 1.5 rp. in 4 m2 plots. In each plot, the DBH of all trees was measured and registered individually by species. According to relative crown position in the stratum, an individual tree was classified as dominant, codominant, intermediate and overtopped. Saplings and seedlings were recorded individually by species in each plot. After sampling the regeneration, the species were classified in three commercial groups: high commercial value, median commercial value and other species without known commercial value. The data were quantitatively analyzed for abundance, dominance, frequency and importance value index (IVI) by species, regeneration size and commercial group. Diametric distributions for basal area and trees per hectare were elaborated. The relative crown position was analyzed by the cornmerciál group. The species with highest ecological importance (IVI) was Pentaclethra macroloba , which was classified as a noncommercial species for this study. With regard to saplings, it was found 247 saplings/ha for high and medium commercial value species, with high frequency and abundance of Virola sebifera , a commercial species. The number of seed-lings of valuable species was 1160 seedlings/ha, distributed on several species. For high and medium commercial valq.especies in was found 25 trees/ha, with a basal area of 2.75 m2/ha. On the basis of data on structure and composition of this forest, it was found that the commercial tree species did not have optimal conditions for the sustained management of the forest; however, saplings and seedlings showed favorable silvicultural conditions for the management, which could be attributed preliminarily to the elimination of palms and lianas performed three years before harvesting the forest.
Materia
Estructura
Composición
Bosque húmedo tropical
Costa Rica
Nivel de accesibilidad
acceso abierto
Condiciones de uso
Atribución-NoComercial-CompartirIgual 4.0 Internacional
Repositorio
Repositorio Institucional Digital de la Universidad Nacional de Misiones (UNaM)
Institución
Universidad Nacional de Misiones
OAI Identificador
oai:rid.unam.edu.ar:20.500.12219/3772

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spelling Estructura y composición de un bosque húmedo tropical explotado en la región norte de Costa RicaGonzález Jiménez, EugenioChaves Salas, EladioEstructuraComposiciónBosque húmedo tropicalCosta RicaFil: González J., Eugenio. Texas A & M University. Departamento of Forest Cience; Estados Unidos.Fil: Chaves S., Eladio. Universidad Nacional de Costa Rica. Escuela de Ciencias Ambientales; Costa Rica.The structure, composition and silvicultural characteristics of the natural regeneration were studied in a harvested tropical rainforest, located in Sarapiqui, Costa Rica (10º 32' N, 84º 04' W). Three years before harvesting the forest, palms, lianas and noncommercial plants were cut and in 1984 a commercial volume of 40 m3/ha was logged. The natural regeneration samplíng was conducted three years after logging the forest. Using concentric circular plots, trees with a DBH greater than 10 cm were sampled in 100 m2 plots; saplings with DBH less than 10 cm and taller than 1.5 m in 25 m2 plots, and seedlings taller than 30 cm and less than 1.5 rp. in 4 m2 plots. In each plot, the DBH of all trees was measured and registered individually by species. According to relative crown position in the stratum, an individual tree was classified as dominant, codominant, intermediate and overtopped. Saplings and seedlings were recorded individually by species in each plot. After sampling the regeneration, the species were classified in three commercial groups: high commercial value, median commercial value and other species without known commercial value. The data were quantitatively analyzed for abundance, dominance, frequency and importance value index (IVI) by species, regeneration size and commercial group. Diametric distributions for basal area and trees per hectare were elaborated. The relative crown position was analyzed by the cornmerciál group. The species with highest ecological importance (IVI) was Pentaclethra macroloba , which was classified as a noncommercial species for this study. With regard to saplings, it was found 247 saplings/ha for high and medium commercial value species, with high frequency and abundance of Virola sebifera , a commercial species. The number of seed-lings of valuable species was 1160 seedlings/ha, distributed on several species. For high and medium commercial valq.especies in was found 25 trees/ha, with a basal area of 2.75 m2/ha. On the basis of data on structure and composition of this forest, it was found that the commercial tree species did not have optimal conditions for the sustained management of the forest; however, saplings and seedlings showed favorable silvicultural conditions for the management, which could be attributed preliminarily to the elimination of palms and lianas performed three years before harvesting the forest.Universidad Nacional de Misiones. Facultad de Ciencias Forestales. Instituto subtropical de Investigaciones Forestales.1994-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdf5.000 MBhttps://hdl.handle.net/20.500.12219/3772spainfo:eu-repo/semantics/altIdentifier/urn/http://www.yvyrareta.com.ar/index.php/item/345-sept-1994-n-5info:eu-repo/semantics/openAccessAtribución-NoComercial-CompartirIgual 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-sa/4.0/reponame:Repositorio Institucional Digital de la Universidad Nacional de Misiones (UNaM)instname:Universidad Nacional de Misiones2025-09-29T15:01:54Zoai:rid.unam.edu.ar:20.500.12219/3772instacron:UNAMInstitucionalhttps://rid.unam.edu.ar/Universidad públicahttps://www.unam.edu.ar/https://rid.unam.edu.ar/oai/rsnrdArgentinaopendoar:2025-09-29 15:01:54.821Repositorio Institucional Digital de la Universidad Nacional de Misiones (UNaM) - Universidad Nacional de Misionesfalse
dc.title.none.fl_str_mv Estructura y composición de un bosque húmedo tropical explotado en la región norte de Costa Rica
title Estructura y composición de un bosque húmedo tropical explotado en la región norte de Costa Rica
spellingShingle Estructura y composición de un bosque húmedo tropical explotado en la región norte de Costa Rica
González Jiménez, Eugenio
Estructura
Composición
Bosque húmedo tropical
Costa Rica
title_short Estructura y composición de un bosque húmedo tropical explotado en la región norte de Costa Rica
title_full Estructura y composición de un bosque húmedo tropical explotado en la región norte de Costa Rica
title_fullStr Estructura y composición de un bosque húmedo tropical explotado en la región norte de Costa Rica
title_full_unstemmed Estructura y composición de un bosque húmedo tropical explotado en la región norte de Costa Rica
title_sort Estructura y composición de un bosque húmedo tropical explotado en la región norte de Costa Rica
dc.creator.none.fl_str_mv González Jiménez, Eugenio
Chaves Salas, Eladio
author González Jiménez, Eugenio
author_facet González Jiménez, Eugenio
Chaves Salas, Eladio
author_role author
author2 Chaves Salas, Eladio
author2_role author
dc.subject.none.fl_str_mv Estructura
Composición
Bosque húmedo tropical
Costa Rica
topic Estructura
Composición
Bosque húmedo tropical
Costa Rica
dc.description.none.fl_txt_mv Fil: González J., Eugenio. Texas A & M University. Departamento of Forest Cience; Estados Unidos.
Fil: Chaves S., Eladio. Universidad Nacional de Costa Rica. Escuela de Ciencias Ambientales; Costa Rica.
The structure, composition and silvicultural characteristics of the natural regeneration were studied in a harvested tropical rainforest, located in Sarapiqui, Costa Rica (10º 32' N, 84º 04' W). Three years before harvesting the forest, palms, lianas and noncommercial plants were cut and in 1984 a commercial volume of 40 m3/ha was logged. The natural regeneration samplíng was conducted three years after logging the forest. Using concentric circular plots, trees with a DBH greater than 10 cm were sampled in 100 m2 plots; saplings with DBH less than 10 cm and taller than 1.5 m in 25 m2 plots, and seedlings taller than 30 cm and less than 1.5 rp. in 4 m2 plots. In each plot, the DBH of all trees was measured and registered individually by species. According to relative crown position in the stratum, an individual tree was classified as dominant, codominant, intermediate and overtopped. Saplings and seedlings were recorded individually by species in each plot. After sampling the regeneration, the species were classified in three commercial groups: high commercial value, median commercial value and other species without known commercial value. The data were quantitatively analyzed for abundance, dominance, frequency and importance value index (IVI) by species, regeneration size and commercial group. Diametric distributions for basal area and trees per hectare were elaborated. The relative crown position was analyzed by the cornmerciál group. The species with highest ecological importance (IVI) was Pentaclethra macroloba , which was classified as a noncommercial species for this study. With regard to saplings, it was found 247 saplings/ha for high and medium commercial value species, with high frequency and abundance of Virola sebifera , a commercial species. The number of seed-lings of valuable species was 1160 seedlings/ha, distributed on several species. For high and medium commercial valq.especies in was found 25 trees/ha, with a basal area of 2.75 m2/ha. On the basis of data on structure and composition of this forest, it was found that the commercial tree species did not have optimal conditions for the sustained management of the forest; however, saplings and seedlings showed favorable silvicultural conditions for the management, which could be attributed preliminarily to the elimination of palms and lianas performed three years before harvesting the forest.
description Fil: González J., Eugenio. Texas A & M University. Departamento of Forest Cience; Estados Unidos.
publishDate 1994
dc.date.none.fl_str_mv 1994-09-01
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.12219/3772
url https://hdl.handle.net/20.500.12219/3772
dc.language.none.fl_str_mv spa
language spa
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/urn/http://www.yvyrareta.com.ar/index.php/item/345-sept-1994-n-5
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
Atribución-NoComercial-CompartirIgual 4.0 Internacional
http://creativecommons.org/licenses/by-nc-sa/4.0/
eu_rights_str_mv openAccess
rights_invalid_str_mv Atribución-NoComercial-CompartirIgual 4.0 Internacional
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5.000 MB
dc.publisher.none.fl_str_mv Universidad Nacional de Misiones. Facultad de Ciencias Forestales. Instituto subtropical de Investigaciones Forestales.
publisher.none.fl_str_mv Universidad Nacional de Misiones. Facultad de Ciencias Forestales. Instituto subtropical de Investigaciones Forestales.
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reponame_str Repositorio Institucional Digital de la Universidad Nacional de Misiones (UNaM)
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instname_str Universidad Nacional de Misiones
repository.name.fl_str_mv Repositorio Institucional Digital de la Universidad Nacional de Misiones (UNaM) - Universidad Nacional de Misiones
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