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dc.contributor.author
Venegas Gonzalez, Alejandro
dc.contributor.author
Muñoz, Ariel A.
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Carpintero Gibson, S.
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Schneider, I.
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Gipolou Zuñiga, T.
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Aguilera Betti, I.
dc.contributor.author
Roig Junent, Fidel Alejandro
dc.date.available
2023-05-29T15:09:32Z
dc.date.issued
2022-05
dc.identifier.citation
Venegas Gonzalez, Alejandro; Muñoz, Ariel A.; Carpintero Gibson, S.; Schneider, I.; Gipolou Zuñiga, T.; et al.; Sclerophyllous Forest Tree Growth Under the Influence of a Historic Megadrought in the Mediterranean Ecoregion of Chile; Springer; Ecosystems; 26; 2; 5-2022; 344-361
dc.identifier.issn
1432-9840
dc.identifier.uri
http://hdl.handle.net/11336/198822
dc.description.abstract
The Mediterranean-type Ecosystems of Central Chile is one of the most threatened regions in South America by global change, particularly evidenced by the historical megadrought that has occurred in central Chile since 2010. The sclerophyllous forest stands out, whose history and relationship with drought conditions has been little studied. Cryptocarya alba and Beilschmiedia miersii (Lauraceae), two large endemic trees, represent an opportunity to analyze the incidence of intense droughts in the growth of sclerophyllous forests by analyzing their tree rings. Here, we considered > 400 trees from nineteen populations of C. alba and B. miersii growing across a latitudinal gradient (32°–35° S). To study the influence of local and large-scale climatic variability on tree growth, we first grouped the sites by species and explored the relationships between tree-growth patterns of C. alba and B. miersii with temperature, precipitation, and climate water deficit (CWD). Second, we performed Principal Component Analysis to detect common modes of variability and to explore relationships between growth patterns and their relationship to Palmer Drought Severity Index (PDSI), ENSO and SAM indices. We detected a breaking point as of 2002 at regional level, where a persistent and pronounced decrease in tree growth occurred, mainly influenced by the increase in CWD and the decrease in winter-spring rainfall. In addition, a positive (negative) relationship was showed between PC1 growth-PDSI and PC1 growth-ENSO (growth-SAM), that is, growth increases (decreases) in the same direction as PDSI and ENSO (SAM). Despite the fact that sclerophyllous populations are highly resistant to drought events, we suggest that the sclerophyllous populations studied here experienced a generalized growth decline, and possibly the natural dynamics of their forests have been altered, mainly due to the accumulating effects of the unprecedented drought since 2010.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
BEILSCHMIEDIA MIERSII
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CHILEAN FORESTS
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CRYPTOCARYA ALBA
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DENDROECOLOGY
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GLOBAL CHANGE
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INCREASED DROUGHT CONDITION
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MEDITERRANEAN FORESTS
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TREE RINGS
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Otras Ciencias de la Tierra y relacionadas con el Medio Ambiente
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Ciencias de la Tierra y relacionadas con el Medio Ambiente
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CIENCIAS NATURALES Y EXACTAS
dc.title
Sclerophyllous Forest Tree Growth Under the Influence of a Historic Megadrought in the Mediterranean Ecoregion of Chile
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-04-27T18:32:08Z
dc.journal.volume
26
dc.journal.number
2
dc.journal.pagination
344-361
dc.journal.pais
Alemania
dc.journal.ciudad
Berlin
dc.description.fil
Fil: Venegas Gonzalez, Alejandro. Universidad de O’higgins; Chile. Universidad Mayor; Chile
dc.description.fil
Fil: Muñoz, Ariel A.. Pontificia Universidad Católica de Valparaíso; Chile
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Fil: Carpintero Gibson, S.. Universidad Mayor.; Chile
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Fil: Schneider, I.. Pontificia Universidad Católica de Valparaíso; Chile
dc.description.fil
Fil: Gipolou Zuñiga, T.. Universidad Austral de Chile; Chile
dc.description.fil
Fil: Aguilera Betti, I.. Pontificia Universidad Católica de Valparaíso; Chile
dc.description.fil
Fil: Roig Junent, Fidel Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
dc.journal.title
Ecosystems
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s10021-022-00760-x
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/s10021-022-00760-x
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