Stand dynamics, spatial pattern and site quality in <i>Austrocedrus chilensis</i> forests in Patagonia, Argentina

Autores
Burns, Sarah Lilian; Goya, Juan Francisco; Arturi, Marcelo Fabián; Yapura, Pablo Fernando; Pérez, Carolina Alejandra
Año de publicación
2013
Idioma
español castellano
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Aim of study: The objective of this study was to analyze the stand structure and spatial pattern of two A. chilensis stands with contrasting soil conditions and different site qualities in order to explore if these differences lead to patterns similar to the ones observed under different precipitation conditions. Area of study: The study was carried out in two stands located near the city of El Bolsón (41° 56’S - 71° 33’ W), Rio Negro, Argentina. Material and methods: We evaluated age difference between canopy strata (upper and lower) in two stands with different site qualities by means of a Mann-Whitney test. Dead individuals by diameter class were compared by means of a chi square test. Spatial distribution pattern was analyzed using the pair-correlation function and the mark-correlation function. Main results: Both sites exhibited a random spatial distribution of A. chilensis but different processes seem to underlie the patterns. In the low-quality site facilitation and continuous establishment led to a transient clumped spatial pattern. Mortality mediated by competition occurred mainly on small trees resulting in the current random pattern. On the other hand, spatial pattern in the high-quality site does not reflect a facilitation mediated recruitment. The upper strata established synchronously and subsequent regeneration was episodic. Research highlights: The results show that the differences in site quality may lead to different establishment spatial patterns, showing the importance of facilitation processes in sites with drier soil conditions and lower quality, although results may be site specific, due to the lack of replications.
Laboratorio de Investigación de Sistemas Ecológicos y Ambientales
Materia
Ciencias Agrarias
Ingeniería Forestal
Patagonia (Argentina)
bosque
spatial analysis; regeneration; mortality; competition; facilitation
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/42232
Acceder
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network_name_str SEDICI (UNLP)
spelling Stand dynamics, spatial pattern and site quality in <i>Austrocedrus chilensis</i> forests in Patagonia, ArgentinaBurns, Sarah LilianGoya, Juan FranciscoArturi, Marcelo FabiánYapura, Pablo FernandoPérez, Carolina AlejandraCiencias AgrariasIngeniería ForestalPatagonia (Argentina)bosquespatial analysis; regeneration; mortality; competition; facilitationAim of study: The objective of this study was to analyze the stand structure and spatial pattern of two A. chilensis stands with contrasting soil conditions and different site qualities in order to explore if these differences lead to patterns similar to the ones observed under different precipitation conditions. Area of study: The study was carried out in two stands located near the city of El Bolsón (41° 56’S - 71° 33’ W), Rio Negro, Argentina. Material and methods: We evaluated age difference between canopy strata (upper and lower) in two stands with different site qualities by means of a Mann-Whitney test. Dead individuals by diameter class were compared by means of a chi square test. Spatial distribution pattern was analyzed using the pair-correlation function and the mark-correlation function. Main results: Both sites exhibited a random spatial distribution of A. chilensis but different processes seem to underlie the patterns. In the low-quality site facilitation and continuous establishment led to a transient clumped spatial pattern. Mortality mediated by competition occurred mainly on small trees resulting in the current random pattern. On the other hand, spatial pattern in the high-quality site does not reflect a facilitation mediated recruitment. The upper strata established synchronously and subsequent regeneration was episodic. Research highlights: The results show that the differences in site quality may lead to different establishment spatial patterns, showing the importance of facilitation processes in sites with drier soil conditions and lower quality, although results may be site specific, due to the lack of replications.Laboratorio de Investigación de Sistemas Ecológicos y Ambientales2013-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf170-178http://sedici.unlp.edu.ar/handle/10915/42232spainfo:eu-repo/semantics/altIdentifier/url/http://revistas.inia.es/index.php/fs/article/view/2834info:eu-repo/semantics/altIdentifier/issn/2171-5068info:eu-repo/semantics/altIdentifier/doi/10.5424/fs%2F2013222-02834info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/2.5/ar/Creative Commons Attribution-NonCommercial-NoDerivs 2.5 Argentina (CC BY-NC-ND 2.5)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-22T16:42:51Zoai:sedici.unlp.edu.ar:10915/42232Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-22 16:42:52.111SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Stand dynamics, spatial pattern and site quality in <i>Austrocedrus chilensis</i> forests in Patagonia, Argentina
title Stand dynamics, spatial pattern and site quality in <i>Austrocedrus chilensis</i> forests in Patagonia, Argentina
spellingShingle Stand dynamics, spatial pattern and site quality in <i>Austrocedrus chilensis</i> forests in Patagonia, Argentina
Burns, Sarah Lilian
Ciencias Agrarias
Ingeniería Forestal
Patagonia (Argentina)
bosque
spatial analysis; regeneration; mortality; competition; facilitation
title_short Stand dynamics, spatial pattern and site quality in <i>Austrocedrus chilensis</i> forests in Patagonia, Argentina
title_full Stand dynamics, spatial pattern and site quality in <i>Austrocedrus chilensis</i> forests in Patagonia, Argentina
title_fullStr Stand dynamics, spatial pattern and site quality in <i>Austrocedrus chilensis</i> forests in Patagonia, Argentina
title_full_unstemmed Stand dynamics, spatial pattern and site quality in <i>Austrocedrus chilensis</i> forests in Patagonia, Argentina
title_sort Stand dynamics, spatial pattern and site quality in <i>Austrocedrus chilensis</i> forests in Patagonia, Argentina
dc.creator.none.fl_str_mv Burns, Sarah Lilian
Goya, Juan Francisco
Arturi, Marcelo Fabián
Yapura, Pablo Fernando
Pérez, Carolina Alejandra
author Burns, Sarah Lilian
author_facet Burns, Sarah Lilian
Goya, Juan Francisco
Arturi, Marcelo Fabián
Yapura, Pablo Fernando
Pérez, Carolina Alejandra
author_role author
author2 Goya, Juan Francisco
Arturi, Marcelo Fabián
Yapura, Pablo Fernando
Pérez, Carolina Alejandra
author2_role author
author
author
author
dc.subject.none.fl_str_mv Ciencias Agrarias
Ingeniería Forestal
Patagonia (Argentina)
bosque
spatial analysis; regeneration; mortality; competition; facilitation
topic Ciencias Agrarias
Ingeniería Forestal
Patagonia (Argentina)
bosque
spatial analysis; regeneration; mortality; competition; facilitation
dc.description.none.fl_txt_mv Aim of study: The objective of this study was to analyze the stand structure and spatial pattern of two A. chilensis stands with contrasting soil conditions and different site qualities in order to explore if these differences lead to patterns similar to the ones observed under different precipitation conditions. Area of study: The study was carried out in two stands located near the city of El Bolsón (41° 56’S - 71° 33’ W), Rio Negro, Argentina. Material and methods: We evaluated age difference between canopy strata (upper and lower) in two stands with different site qualities by means of a Mann-Whitney test. Dead individuals by diameter class were compared by means of a chi square test. Spatial distribution pattern was analyzed using the pair-correlation function and the mark-correlation function. Main results: Both sites exhibited a random spatial distribution of A. chilensis but different processes seem to underlie the patterns. In the low-quality site facilitation and continuous establishment led to a transient clumped spatial pattern. Mortality mediated by competition occurred mainly on small trees resulting in the current random pattern. On the other hand, spatial pattern in the high-quality site does not reflect a facilitation mediated recruitment. The upper strata established synchronously and subsequent regeneration was episodic. Research highlights: The results show that the differences in site quality may lead to different establishment spatial patterns, showing the importance of facilitation processes in sites with drier soil conditions and lower quality, although results may be site specific, due to the lack of replications.
Laboratorio de Investigación de Sistemas Ecológicos y Ambientales
description Aim of study: The objective of this study was to analyze the stand structure and spatial pattern of two A. chilensis stands with contrasting soil conditions and different site qualities in order to explore if these differences lead to patterns similar to the ones observed under different precipitation conditions. Area of study: The study was carried out in two stands located near the city of El Bolsón (41° 56’S - 71° 33’ W), Rio Negro, Argentina. Material and methods: We evaluated age difference between canopy strata (upper and lower) in two stands with different site qualities by means of a Mann-Whitney test. Dead individuals by diameter class were compared by means of a chi square test. Spatial distribution pattern was analyzed using the pair-correlation function and the mark-correlation function. Main results: Both sites exhibited a random spatial distribution of A. chilensis but different processes seem to underlie the patterns. In the low-quality site facilitation and continuous establishment led to a transient clumped spatial pattern. Mortality mediated by competition occurred mainly on small trees resulting in the current random pattern. On the other hand, spatial pattern in the high-quality site does not reflect a facilitation mediated recruitment. The upper strata established synchronously and subsequent regeneration was episodic. Research highlights: The results show that the differences in site quality may lead to different establishment spatial patterns, showing the importance of facilitation processes in sites with drier soil conditions and lower quality, although results may be site specific, due to the lack of replications.
publishDate 2013
dc.date.none.fl_str_mv 2013-08
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/42232
url http://sedici.unlp.edu.ar/handle/10915/42232
dc.language.none.fl_str_mv spa
language spa
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://revistas.inia.es/index.php/fs/article/view/2834
info:eu-repo/semantics/altIdentifier/issn/2171-5068
info:eu-repo/semantics/altIdentifier/doi/10.5424/fs%2F2013222-02834
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Creative Commons Attribution-NonCommercial-NoDerivs 2.5 Argentina (CC BY-NC-ND 2.5)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Creative Commons Attribution-NonCommercial-NoDerivs 2.5 Argentina (CC BY-NC-ND 2.5)
dc.format.none.fl_str_mv application/pdf
170-178
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instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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