Growth of Drimys winteri secondary forest stands following 16 years after thinning in the Andean and costal ranges of Chile

Reyes, R.; Donoso, P.J.; Donoso, C.; Navarro Cárcamo, Celso

Growth of Drimys winteri secondary forest stands following 16 years after thinning in the Andean and costal ranges of Chile

dc.contributor.author	Reyes, R.
dc.contributor.author	Donoso, P.J.
dc.contributor.author	Donoso, C.
dc.contributor.author	Navarro Cárcamo, Celso
dc.date	2009
dc.date.accessioned	2012-02-09T15:34:35Z
dc.date.available	2012-02-09T15:34:35Z
dc.date.issued	2012-02-09
dc.description.abstract	Secondary Drimys winteri forests are among the most common and productive forests in south-central Chile. However, their management has been scarce or many times inadequate due to lack of silvicultural knowledge. In 1986 and 1990 three field experiments were installed; one in the Coastal range of the province of Ranco (40° 09' S) and two in the Andean range of the province of Llanquihue (41° 30' S), to evaluate the effects of different intensities of thinning on the growth and mortality of 28-year-old Drimys winteri secondary forests. After 16 and 10 years of evaluation, great differences were observed among treatments within and between the three experiments. In Hueicoya (Coastal Range) plots thinned at a distance of 3 m had the highest productivity. In Lenca A (Andean Range) the high mortality rates due to windfalls in the plots with trees spaced at 3 and 4 m caused the control plots to have the highest productivity rates. In Lenca B (Andean Range) plots thinned at 2.5 m distance between trees had no significant differences with control plots. At an equal thinning intensity the responses were very different among experiments. We discuss that site quality, residual composition, exposure to winds and rooting characteristics may have influenced these results. In general, it is recommended to thin at 25-45% residual densities (2-3 m distance between trees at the age of thinning of 9-12 cm quadratic stand diameter), but always depending on the risk of windfall.	es
dc.format	PDF	es
dc.identifier.citation	Bosque, Vol. 30, N°3, 117-126, 2009	es
dc.identifier.uri	https://repositoriodigital.uct.cl/handle/10925/627
dc.language.iso	en	es
dc.source	Bosque	es
dc.subject	Canelo	es
dc.subject	Raleo	es
dc.subject	Renovales	es
dc.title	Growth of Drimys winteri secondary forest stands following 16 years after thinning in the Andean and costal ranges of Chile	es
dc.title.alternative	Crecimiento de renovales de Drimys winteri después de 16 años de aplicados distintos tratamientos de raleo en las cordilleras de los andes y de la costa en Chile	es
dc.type	Artículo de Revista	es
uct.carrera	Agronomía	es
uct.carrera	Ingeniería en Recursos Naturales Renovables	es
uct.carrera	Ingeniería Forestal	es
uct.catalogador	aga	es
uct.comunidad	Recursos Naturales	es
uct.facultad	Facultad de Recursos Naturales	es
uct.indizacion	ISI	es