Repositorio UFRO · Omeka S

Present and prospects for multi-aged silviculture in Chilean temperate forests: Targeting secondary forests in transition and partially harvested old-growth forests

Primer Autor	Donoso, Pablo J.
Co-autores	Soto, Daniel P. Salas-Eljatib, Christian Riquelme-Buitano, Tomas R.
Título	Present and prospects for multi-aged silviculture in Chilean temperate forests: Targeting secondary forests in transition and partially harvested old-growth forests
Editorial	FRONTIERS MEDIA SA
Revista	FRONTIERS IN FORESTS AND GLOBAL CHANGE
Lenguaje	en
Resumen	Valdivian Temperate Rainforests in Chile have a global conservation value, but nowadays many correspond to secondary forests following regeneration in agricultural and burned lands, and to high-graded old-growth due to mismanagement, especially at mid to low elevations. Perspectives for increasing old-growth attributes in these productive forests through silviculture are high considering the diverse demands of ecosystem services and the high timber value of tree species. In the Llancahue experimental forest (40 degrees S Lat) we implemented three ecological silviculture approaches: variable-density thinning in a Nothofagus dombeyi secondary forest (NDS), irregular shelterwood in a mature N. dombeyi forest (NDM), and single-tree selection cutting in a partially harvested old-growth forest (OG). Based upon an old-growth index (OGI) that includes density, basal area (BA), BA of the trees >80 cm in diameter, ba of shade-tolerant species, and the Gini coefficient, and aims to estimate how close a given forest is to a typical old-growth forest, these forests had a 22, 22, and 62% OGI before management. The OGI remained similar or declined following management, but 7-10 years after management it increased in NDS and NDM and declined in the OG (significant changes only in NDM and OG). We discuss these results considering that managed forests should target for an OGI approximate to 70% rather than maximum values. These managed forests contribute to halt degradation, mitigate climate change (carbon stores in the forest and in timber), and may have greater adaptive capacity to disturbances. We discuss perspectives for the potential scale-up of implementing these approaches.
Tipo de Recurso	artículo original
Description	Funding This study was supported by FONDECYT 1210147. Financiamiento Este estudio fue apoyado por FONDECYT 1210147.
doi	10.3389/ffgc.2022.965599
Formato Recurso	PDF
Palabras Claves	ecological silviculture hardwood forests Valdivian Temperate Rainforests old-growth index irregular forests selection cutting variable-density thinning SOUTH-CENTRAL CHILE MANAGEMENT LOWLANDS
Ubicación del archivo	http://dx.doi.org/10.3389/ffgc.2022.965599
Categoría OCDE	Ecología Silvicultura
Materias	Silvicultura ecológica bosques de frondosas Selvas Templadas Valdivianas índice de crecimiento antiguo bosques irregulares tala de selección raleo de densidad variable SUR-CENTRO DE CHILE GESTIÓN TIERRAS BAJAS
Disciplinas de la OCDE	Silvicultura Ecología Conservación de la Biodiversidad
Título de la cita (Recomendado-único)	Present and prospects for multi-aged silviculture in Chilean temperate forests: Targeting secondary forests in transition and partially harvested old-growth forests
Identificador del recurso (Mandatado-único)	artículo original
Versión del recurso (Recomendado-único)	version publicada
License	CC BY 4.0
Condición de la licencia (Recomendado-repetible)	CC BY 4.0
Derechos de acceso	acceso abierto
Access Rights	acceso abierto
Referencia del Financiador (Mandatado si es aplicable-repetible)	ANID-FONDECYT 1210147 ANID FONDECYT 1210147
Id de Web of Science	WOS:000860543200001