Timber management with variable retention in Nothofagus pumilio forests of Southern Patagonia

Autores
Martínez Pastur, Guillermo José; Lencinas, María Vanessa; Cellini, Juan Manuel; Peri, Pablo Luis; Soler Esteban, Rosina Matilde
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Forestry practices integrating ecological and social criteria have been replacing those based only on economic values. Traditional silviculture, such as shelterwood cuts (SC), transforms uneven-aged original stands to an even-aged managed forest. Recently, other methods have proposed to conserve some of the original heterogeneity of the old-growth forests. One proposal leaves 30% of the timber quality forest area as aggregated retention and 20% basal area as dispersed retention. The aim of this study was to analyze the feasibility of timber management with aggregated and dispersed retention in Nothofagus pumilio old-growth forests by analyzing timber and harvesting yield potential compared with traditional regeneration systems. Also, remnant tree stability of aggregated retention was analyzed. Timber yield potential of old-growth forests varied from 136 to 479 m3 ha-1 across a site quality gradient. High grading cutting improved yield index (timber volume and harvested basal area (HBA) ratio of 7.9 m3 m-2). In contrast, this index decreased in clear-cuts (4.7 m3 m-2) and shelterwood cuts (4.9 m3 m-2). The index also decreased in the aggregated and dispersed retention treatment (5.1 m3 m-2), but with higher timber harvested volumes. Windthrow of remaining trees in aggregated retention was related to time, being significantly higher during the first year after harvesting. Windthrow was affected by crown class and position into the aggregates of the remnant trees as well as site quality of the stand. Regeneration methods with aggregated retention were feasible across the entire site quality gradient, and economic losses were not significant when compared to shelterwood cuts. The method also resulted in stability of the remnant overstory, which maintained the ecological conditions to ensure biodiversity conservation and continuity of harvested stands.
Fil: Martínez Pastur, Guillermo José. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Lencinas, María Vanessa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Cellini, Juan Manuel. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales; Argentina
Fil: Peri, Pablo Luis. Instituto Nacional de Tecnología Agropecuaria; Argentina. Universidad Nacional de la Patagonia Austral; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Soler Esteban, Rosina Matilde. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Materia
AGGREGATED RETENTION
DISPERSED RETENTION
SUSTAINABLE FORESTRY
WINDTHROW
YIELD
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/129138
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Timber management with variable retention in Nothofagus pumilio forests of Southern PatagoniaMartínez Pastur, Guillermo JoséLencinas, María VanessaCellini, Juan ManuelPeri, Pablo LuisSoler Esteban, Rosina MatildeAGGREGATED RETENTIONDISPERSED RETENTIONSUSTAINABLE FORESTRYWINDTHROWYIELDhttps://purl.org/becyt/ford/4.1https://purl.org/becyt/ford/4Forestry practices integrating ecological and social criteria have been replacing those based only on economic values. Traditional silviculture, such as shelterwood cuts (SC), transforms uneven-aged original stands to an even-aged managed forest. Recently, other methods have proposed to conserve some of the original heterogeneity of the old-growth forests. One proposal leaves 30% of the timber quality forest area as aggregated retention and 20% basal area as dispersed retention. The aim of this study was to analyze the feasibility of timber management with aggregated and dispersed retention in Nothofagus pumilio old-growth forests by analyzing timber and harvesting yield potential compared with traditional regeneration systems. Also, remnant tree stability of aggregated retention was analyzed. Timber yield potential of old-growth forests varied from 136 to 479 m3 ha-1 across a site quality gradient. High grading cutting improved yield index (timber volume and harvested basal area (HBA) ratio of 7.9 m3 m-2). In contrast, this index decreased in clear-cuts (4.7 m3 m-2) and shelterwood cuts (4.9 m3 m-2). The index also decreased in the aggregated and dispersed retention treatment (5.1 m3 m-2), but with higher timber harvested volumes. Windthrow of remaining trees in aggregated retention was related to time, being significantly higher during the first year after harvesting. Windthrow was affected by crown class and position into the aggregates of the remnant trees as well as site quality of the stand. Regeneration methods with aggregated retention were feasible across the entire site quality gradient, and economic losses were not significant when compared to shelterwood cuts. The method also resulted in stability of the remnant overstory, which maintained the ecological conditions to ensure biodiversity conservation and continuity of harvested stands.Fil: Martínez Pastur, Guillermo José. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; ArgentinaFil: Lencinas, María Vanessa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; ArgentinaFil: Cellini, Juan Manuel. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales; ArgentinaFil: Peri, Pablo Luis. Instituto Nacional de Tecnología Agropecuaria; Argentina. Universidad Nacional de la Patagonia Austral; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Soler Esteban, Rosina Matilde. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; ArgentinaElsevier Science2009-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/129138Martínez Pastur, Guillermo José; Lencinas, María Vanessa; Cellini, Juan Manuel; Peri, Pablo Luis; Soler Esteban, Rosina Matilde; Timber management with variable retention in Nothofagus pumilio forests of Southern Patagonia; Elsevier Science; Forest Ecology and Management; 258; 4; 1-2009; 436-4430378-1127CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0378112709000899info:eu-repo/semantics/altIdentifier/doi/10.1016/j.foreco.2009.01.048info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:23:37Zoai:ri.conicet.gov.ar:11336/129138instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 14:23:37.557CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Timber management with variable retention in Nothofagus pumilio forests of Southern Patagonia
title Timber management with variable retention in Nothofagus pumilio forests of Southern Patagonia
spellingShingle Timber management with variable retention in Nothofagus pumilio forests of Southern Patagonia
Martínez Pastur, Guillermo José
AGGREGATED RETENTION
DISPERSED RETENTION
SUSTAINABLE FORESTRY
WINDTHROW
YIELD
title_short Timber management with variable retention in Nothofagus pumilio forests of Southern Patagonia
title_full Timber management with variable retention in Nothofagus pumilio forests of Southern Patagonia
title_fullStr Timber management with variable retention in Nothofagus pumilio forests of Southern Patagonia
title_full_unstemmed Timber management with variable retention in Nothofagus pumilio forests of Southern Patagonia
title_sort Timber management with variable retention in Nothofagus pumilio forests of Southern Patagonia
dc.creator.none.fl_str_mv Martínez Pastur, Guillermo José
Lencinas, María Vanessa
Cellini, Juan Manuel
Peri, Pablo Luis
Soler Esteban, Rosina Matilde
author Martínez Pastur, Guillermo José
author_facet Martínez Pastur, Guillermo José
Lencinas, María Vanessa
Cellini, Juan Manuel
Peri, Pablo Luis
Soler Esteban, Rosina Matilde
author_role author
author2 Lencinas, María Vanessa
Cellini, Juan Manuel
Peri, Pablo Luis
Soler Esteban, Rosina Matilde
author2_role author
author
author
author
dc.subject.none.fl_str_mv AGGREGATED RETENTION
DISPERSED RETENTION
SUSTAINABLE FORESTRY
WINDTHROW
YIELD
topic AGGREGATED RETENTION
DISPERSED RETENTION
SUSTAINABLE FORESTRY
WINDTHROW
YIELD
purl_subject.fl_str_mv https://purl.org/becyt/ford/4.1
https://purl.org/becyt/ford/4
dc.description.none.fl_txt_mv Forestry practices integrating ecological and social criteria have been replacing those based only on economic values. Traditional silviculture, such as shelterwood cuts (SC), transforms uneven-aged original stands to an even-aged managed forest. Recently, other methods have proposed to conserve some of the original heterogeneity of the old-growth forests. One proposal leaves 30% of the timber quality forest area as aggregated retention and 20% basal area as dispersed retention. The aim of this study was to analyze the feasibility of timber management with aggregated and dispersed retention in Nothofagus pumilio old-growth forests by analyzing timber and harvesting yield potential compared with traditional regeneration systems. Also, remnant tree stability of aggregated retention was analyzed. Timber yield potential of old-growth forests varied from 136 to 479 m3 ha-1 across a site quality gradient. High grading cutting improved yield index (timber volume and harvested basal area (HBA) ratio of 7.9 m3 m-2). In contrast, this index decreased in clear-cuts (4.7 m3 m-2) and shelterwood cuts (4.9 m3 m-2). The index also decreased in the aggregated and dispersed retention treatment (5.1 m3 m-2), but with higher timber harvested volumes. Windthrow of remaining trees in aggregated retention was related to time, being significantly higher during the first year after harvesting. Windthrow was affected by crown class and position into the aggregates of the remnant trees as well as site quality of the stand. Regeneration methods with aggregated retention were feasible across the entire site quality gradient, and economic losses were not significant when compared to shelterwood cuts. The method also resulted in stability of the remnant overstory, which maintained the ecological conditions to ensure biodiversity conservation and continuity of harvested stands.
Fil: Martínez Pastur, Guillermo José. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Lencinas, María Vanessa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Cellini, Juan Manuel. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales; Argentina
Fil: Peri, Pablo Luis. Instituto Nacional de Tecnología Agropecuaria; Argentina. Universidad Nacional de la Patagonia Austral; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Soler Esteban, Rosina Matilde. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
description Forestry practices integrating ecological and social criteria have been replacing those based only on economic values. Traditional silviculture, such as shelterwood cuts (SC), transforms uneven-aged original stands to an even-aged managed forest. Recently, other methods have proposed to conserve some of the original heterogeneity of the old-growth forests. One proposal leaves 30% of the timber quality forest area as aggregated retention and 20% basal area as dispersed retention. The aim of this study was to analyze the feasibility of timber management with aggregated and dispersed retention in Nothofagus pumilio old-growth forests by analyzing timber and harvesting yield potential compared with traditional regeneration systems. Also, remnant tree stability of aggregated retention was analyzed. Timber yield potential of old-growth forests varied from 136 to 479 m3 ha-1 across a site quality gradient. High grading cutting improved yield index (timber volume and harvested basal area (HBA) ratio of 7.9 m3 m-2). In contrast, this index decreased in clear-cuts (4.7 m3 m-2) and shelterwood cuts (4.9 m3 m-2). The index also decreased in the aggregated and dispersed retention treatment (5.1 m3 m-2), but with higher timber harvested volumes. Windthrow of remaining trees in aggregated retention was related to time, being significantly higher during the first year after harvesting. Windthrow was affected by crown class and position into the aggregates of the remnant trees as well as site quality of the stand. Regeneration methods with aggregated retention were feasible across the entire site quality gradient, and economic losses were not significant when compared to shelterwood cuts. The method also resulted in stability of the remnant overstory, which maintained the ecological conditions to ensure biodiversity conservation and continuity of harvested stands.
publishDate 2009
dc.date.none.fl_str_mv 2009-01
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 http://hdl.handle.net/11336/129138
Martínez Pastur, Guillermo José; Lencinas, María Vanessa; Cellini, Juan Manuel; Peri, Pablo Luis; Soler Esteban, Rosina Matilde; Timber management with variable retention in Nothofagus pumilio forests of Southern Patagonia; Elsevier Science; Forest Ecology and Management; 258; 4; 1-2009; 436-443
0378-1127
CONICET Digital
CONICET
url http://hdl.handle.net/11336/129138
identifier_str_mv Martínez Pastur, Guillermo José; Lencinas, María Vanessa; Cellini, Juan Manuel; Peri, Pablo Luis; Soler Esteban, Rosina Matilde; Timber management with variable retention in Nothofagus pumilio forests of Southern Patagonia; Elsevier Science; Forest Ecology and Management; 258; 4; 1-2009; 436-443
0378-1127
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0378112709000899
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.foreco.2009.01.048
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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