Effects of solar radiation on regeneration patterns in a Nothofagus dombeyi (Mirb.) Oerst. old-growth forest in Chile’s central-southern Andes

Effects of solar radiation on regeneration patterns in a Nothofagus dombeyi (Mirb.) Oerst. old-growth forest in Chile’s central-southern Andes

ABSTRACT Nothofagus species behave like early successional species that recolonize open sites after of regular and large-scale disturbances. This study analyzed the effects of light regimes on patterns of advanced regeneration dynamics, growth in diameter and height of Nothofagus dombeyi (Mirb.) Oer...

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Autores principales: Encina,Pamela, Rodríguez,Rolando, Müller-Using,Burkhard, Annighöfer,Peter, Ríos Leal,Darcy, Sáez-Carrillo,Katia, Sánchez-Olate,Manuel
Lenguaje:English
Publicado: Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción 2019
Materias:
Advanced regeneration
disturbance
solar radiation transmissivity.
Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-66432019000100012
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spelling oai:scielo:S0717-664320190001000122019-08-28Effects of solar radiation on regeneration patterns in a Nothofagus dombeyi (Mirb.) Oerst. old-growth forest in Chile’s central-southern AndesEncina,PamelaRodríguez,RolandoMüller-Using,BurkhardAnnighöfer,PeterRíos Leal,DarcySáez-Carrillo,KatiaSánchez-Olate,Manuel Advanced regeneration disturbance solar radiation transmissivity. ABSTRACT Nothofagus species behave like early successional species that recolonize open sites after of regular and large-scale disturbances. This study analyzed the effects of light regimes on patterns of advanced regeneration dynamics, growth in diameter and height of Nothofagus dombeyi (Mirb.) Oerst. (Density of 240 trees ha-1, basal area of 56.7 m2 ha-1). Systematic sampling every 50 m in three stands (7.5 ha) was used. At each point and with the same center, two concentric circular plots were established, 9.0 m and 1.8 m radius. For estimate solar radiation transmissivity in plots, a solariscope hemispheric photographic camera was used. Diameters at breast height and basal areas (BA), heights (H) were measured and then counted and measured N. dombeyi seedlings and saplings. 13 saplings of advanced regeneration were harvested from all gaps to obtain age (E), total height (TH), absolute radial growth (ARG), and absolute height growth (AHG). As results, solar radiation varied between 3 and 40%. ARG varied between 1.20 and 2.22 mm yr-1 and AHG between 0.15 and 0.43 m yr-1. We found correlation for ARG and AHG with direct and global solar radiation transmissivity, but not with diffuse solar radiation transmissivity. The plant age and transmittance of direct and global solar radiation explains the increases in diameter and height. However, in our study stated that in the Andean region of south-central Chile, N. dombeyi stands is affected by small-scale disturbances. Therefore, transmissivity radiation solar inside the forest, explaining natural regeneration patterns and growth of N. dombeyi.info:eu-repo/semantics/openAccessFacultad de Ciencias Naturales y Oceanográficas, Universidad de ConcepciónGayana. Botánica v.76 n.1 20192019-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-66432019000100012en10.4067/S0717-66432019000100012
institution Scielo Chile
collection Scielo Chile
language English
topic Advanced regeneration
disturbance
solar radiation transmissivity.
spellingShingle Advanced regeneration
disturbance
solar radiation transmissivity.
Encina,Pamela
Rodríguez,Rolando
Müller-Using,Burkhard
Annighöfer,Peter
Ríos Leal,Darcy
Sáez-Carrillo,Katia
Sánchez-Olate,Manuel
Effects of solar radiation on regeneration patterns in a Nothofagus dombeyi (Mirb.) Oerst. old-growth forest in Chile’s central-southern Andes
description ABSTRACT Nothofagus species behave like early successional species that recolonize open sites after of regular and large-scale disturbances. This study analyzed the effects of light regimes on patterns of advanced regeneration dynamics, growth in diameter and height of Nothofagus dombeyi (Mirb.) Oerst. (Density of 240 trees ha-1, basal area of 56.7 m2 ha-1). Systematic sampling every 50 m in three stands (7.5 ha) was used. At each point and with the same center, two concentric circular plots were established, 9.0 m and 1.8 m radius. For estimate solar radiation transmissivity in plots, a solariscope hemispheric photographic camera was used. Diameters at breast height and basal areas (BA), heights (H) were measured and then counted and measured N. dombeyi seedlings and saplings. 13 saplings of advanced regeneration were harvested from all gaps to obtain age (E), total height (TH), absolute radial growth (ARG), and absolute height growth (AHG). As results, solar radiation varied between 3 and 40%. ARG varied between 1.20 and 2.22 mm yr-1 and AHG between 0.15 and 0.43 m yr-1. We found correlation for ARG and AHG with direct and global solar radiation transmissivity, but not with diffuse solar radiation transmissivity. The plant age and transmittance of direct and global solar radiation explains the increases in diameter and height. However, in our study stated that in the Andean region of south-central Chile, N. dombeyi stands is affected by small-scale disturbances. Therefore, transmissivity radiation solar inside the forest, explaining natural regeneration patterns and growth of N. dombeyi.
author Encina,Pamela
Rodríguez,Rolando
Müller-Using,Burkhard
Annighöfer,Peter
Ríos Leal,Darcy
Sáez-Carrillo,Katia
Sánchez-Olate,Manuel
author_facet Encina,Pamela
Rodríguez,Rolando
Müller-Using,Burkhard
Annighöfer,Peter
Ríos Leal,Darcy
Sáez-Carrillo,Katia
Sánchez-Olate,Manuel
author_sort Encina,Pamela
title Effects of solar radiation on regeneration patterns in a Nothofagus dombeyi (Mirb.) Oerst. old-growth forest in Chile’s central-southern Andes
title_short Effects of solar radiation on regeneration patterns in a Nothofagus dombeyi (Mirb.) Oerst. old-growth forest in Chile’s central-southern Andes
title_full Effects of solar radiation on regeneration patterns in a Nothofagus dombeyi (Mirb.) Oerst. old-growth forest in Chile’s central-southern Andes
title_fullStr Effects of solar radiation on regeneration patterns in a Nothofagus dombeyi (Mirb.) Oerst. old-growth forest in Chile’s central-southern Andes
title_full_unstemmed Effects of solar radiation on regeneration patterns in a Nothofagus dombeyi (Mirb.) Oerst. old-growth forest in Chile’s central-southern Andes
title_sort effects of solar radiation on regeneration patterns in a nothofagus dombeyi (mirb.) oerst. old-growth forest in chile’s central-southern andes
publisher Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción
publishDate 2019
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-66432019000100012
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