Vista normal Vista MARC

Remnant trees in enrichment planted gaps in Quintana Roo, Mexico: reasons for retention and effects on seedlings

Navarro Martínez, María Angélica | Palmas, Sebastian [autor] | Ellis, Edward A [autor] | Blanco Reyes, Pascual [autor] | Vargas Godínez, Carolina [autora] | Iuit Jiménez, Ana Cecilia [autora] | Hernández Gómez, Irving Uriel [autor] | Ellis, Peter [autor] | Álvarez Ugalde, Alfredo [autor] | Carrera Quirino, Yavé Guadalupe [autora] | Armenta Montero, Samaria [autora] | Putz, Francis E [autor/a].
Tipo de material: Artículo en línea Artículo en línea Tipo de contenido: Texto Tipo de medio: Computadora Tipo de portador: Recurso en líneaTema(s): Árboles forestales | Ordenación forestal | Silvicultura comunitaria | Silvicultura sostenible | Bosques tropicalesTema(s) en inglés: Forest trees | Forest management | Community forestry | Sustainable forestry | Tropical forestsDescriptor(es) geográficos: Noh-Bec, Felipe Carrillo Puerto (Quintana Roo, México) Nota de acceso: Acceso en línea sin restricciones En: Forests. Volumen 8, número 272 (July 2017), páginas 1-11. --ISSN: 1999-4907Número de sistema: 22450Resumen:
Inglés

Natural forest management in the tropics is often impeded by scarcity of advanced regeneration of commercial species. To supplement natural regeneration in a forest managed by a community in the Selva Maya of Mexico, nursery-grown Swietenia macrophylla seedlings were planted in multiple-tree felling gaps, known as bosquetes. Remnant trees are often left standing in gaps for cultural and economic reasons or due to their official protected status. We focus on these purposefully retained trees and their impacts on planted seedlings. Sampled bosquetes were 400-1800 m², of which remnant trees covered a mean of 29%. Seedling height growth rates over the first 18 months after out-planting more than doubled with increased canopy openness from 0.09 m year-¹ under medium cover to 0.22 m year-¹ in full sun. Liana infestations and shoot tip damage were most frequent on seedlings in the open, but, contrary to our expectations, height growth rates were 0.14 m year-¹ faster for liana-infested seedlings than non-infested and did not differ between damaged and undamaged seedlings. Apparently the more rapid height growth of well-illuminated seedlings more than compensated for the effects of lianas or shoot tip damage. Despite the abundance of remnant trees and their negative effects on seedling growth, enrichment planting in bosquetes has potential for community-based natural forest management in the tropics in supplementing natural regeneration of commercial species. One obvious recommendation is to leave fewer remnant trees, especially those of commercial species that are non-merchantable due to stem defects and trees retained for no apparent reason, which together constituted half of the remnant crown cover in the sampled bosquetes. Finally, given the rapid growth of lianas and understory palms in large canopy gaps, at least the most vigorous of the planted seedlings should be tended for at least two years.

Recurso en línea: http://www.mdpi.com/1999-4907/8/8/272
Lista(s) en las que aparece este ítem: María Angélica Navarro Martínez
Etiquetas de esta biblioteca: No hay etiquetas de esta biblioteca para este título. Ingresar para agregar etiquetas.
Star ratings
    Valoración media: 0.0 (0 votos)
Existencias
Tipo de ítem Biblioteca actual Colección Signatura Estado Fecha de vencimiento Código de barras
Artículos Biblioteca Electrónica
Recursos en línea (RE) 		ECOSUR Recurso digital ECO400224501950

Acceso en línea sin restricciones

Natural forest management in the tropics is often impeded by scarcity of advanced regeneration of commercial species. To supplement natural regeneration in a forest managed by a community in the Selva Maya of Mexico, nursery-grown Swietenia macrophylla seedlings were planted in multiple-tree felling gaps, known as bosquetes. Remnant trees are often left standing in gaps for cultural and economic reasons or due to their official protected status. We focus on these purposefully retained trees and their impacts on planted seedlings. Sampled bosquetes were 400-1800 m², of which remnant trees covered a mean of 29%. Seedling height growth rates over the first 18 months after out-planting more than doubled with increased canopy openness from 0.09 m year-¹ under medium cover to 0.22 m year-¹ in full sun. Liana infestations and shoot tip damage were most frequent on seedlings in the open, but, contrary to our expectations, height growth rates were 0.14 m year-¹ faster for liana-infested seedlings than non-infested and did not differ between damaged and undamaged seedlings. Apparently the more rapid height growth of well-illuminated seedlings more than compensated for the effects of lianas or shoot tip damage. Despite the abundance of remnant trees and their negative effects on seedling growth, enrichment planting in bosquetes has potential for community-based natural forest management in the tropics in supplementing natural regeneration of commercial species. One obvious recommendation is to leave fewer remnant trees, especially those of commercial species that are non-merchantable due to stem defects and trees retained for no apparent reason, which together constituted half of the remnant crown cover in the sampled bosquetes. Finally, given the rapid growth of lianas and understory palms in large canopy gaps, at least the most vigorous of the planted seedlings should be tended for at least two years. eng

Con tecnología Koha