Influence of thinning intensity and canopy type on Scots pine stand and growth dynamics in a mixed managed forest
Fecha
2016Autor
Versión
Acceso abierto / Sarbide irekia
Tipo
Artículo / Artikulua
Versión
Versión publicada / Argitaratu den bertsioa
Impacto
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10.5424/fs/2016252-07317
Resumen
Aim of the study: We analysed the effects of thinning intensity and canopy type on Scots pine growth and stand dynamics in a
mixed Scots pine-beech forest.
Area of the study: Western Pyrenees.
Material and methods: Three thinning intensities were applied in 1999 (0, 20 and 30% basal area removed) and 2009 (0, 20 and 40%)
on 9 plots. Within each plot, pure pine and mixed pine-beech patches are ...
[++]
Aim of the study: We analysed the effects of thinning intensity and canopy type on Scots pine growth and stand dynamics in a
mixed Scots pine-beech forest.
Area of the study: Western Pyrenees.
Material and methods: Three thinning intensities were applied in 1999 (0, 20 and 30% basal area removed) and 2009 (0, 20 and 40%)
on 9 plots. Within each plot, pure pine and mixed pine-beech patches are distinguished. All pine trees were inventoried in 1999, 2009 and
2014. The effects of treatments on the tree and stand structure variables (density, basal area, stand and tree volume), on the periodic annual
increment in basal area and stand and tree volume, and on mortality rates, were analysed using linear mixed effects models.
Main Results: The enhancement of tree growth was mainly noticeable after the second thinning. Growth rates following thinning
were similar or higher in the moderate than in the severe thinning. Periodic stand volume annual increments were higher in the
thinned than in the unthinned plots, but no differences were observed between the thinned treatments. We observed an increase in
the differences of the Tree volume annual increment between canopy types (mixed < pure) over time in the unthinned plots, as beech
crowns developed.
Research highlights: Moderate thinning is suggested as an appropriate forest practice at early pine age in these mixed forests, since
it produced higher tree growth rates than the severe thinning and it counteracted the negative effect of beech on pine growth observed
in the unthinned plots. [--]
Materias
Competition,
Fagus sylvatica L.,
Pinus sylvestris L.,
Forest management,
Mortality,
Mediterranean forest
Editor
Instituto Nacional de Investigacion y Tecnologia Agraria y Alimentaria (INIA)
Publicado en
Forest Systems, 25 (2), e057, 10 pages (2016)
Departamento
Universidad Pública de Navarra. Departamento de Ciencias del Medio Natural /
Nafarroako Unibertsitate Publikoa. Natura Ingurunearen Zientziak Saila
Versión del editor
Entidades Financiadoras
This study has been carried out within the framework of the projects AGL2006-08288 and AGL2009-11287 financed by Ministerio de Economía y Competividad (Spain).
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