Partición de nutrientes en árboles de Nothofagus antárctica creciendo en un gradiente de calidades de sitio en Patagonia Sur.
Nothofagus antarctica is a native species that grows in the South of Argentina and Chile. Information of tree nutrient partitioning is essential for evaluating the impacts of silvicultural practices on site productivity, mineral fertility and bioelement recycling. We determined nitrogen, phosphorous...
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ftconicet:oai:ri.conicet.gov.ar:11336/1399 2023-10-09T21:47:06+02:00 Partición de nutrientes en árboles de Nothofagus antárctica creciendo en un gradiente de calidades de sitio en Patagonia Sur. Gargaglione, Verónica Peri, Pablo Luis Rubio, Gerardo application/pdf http://hdl.handle.net/11336/1399 spa spa Univ Austral Chile info:eu-repo/semantics/altIdentifier/url/http://ri.conicet.gov.ar/admin/submit?handle=11336/1399 info:eu-repo/semantics/altIdentifier/url/http://www.redalyc.org/articulo.oa?id=173129280005 http://hdl.handle.net/11336/1399 Gargaglione, Verónica; Peri, Pablo Luis; Rubio, Gerardo; Partición de nutrientes en árboles de Nothofagus antárctica creciendo en un gradiente de calidades de sitio en Patagonia Sur.; Univ Austral Chile; Bosque (valdivia); 34; 11-2013; 291-302 0304-8799 0717-9200 info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ bosque andino patagónico ecología forestal alometria https://purl.org/becyt/ford/4.1 https://purl.org/becyt/ford/4 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet 2023-09-24T19:13:52Z Nothofagus antarctica is a native species that grows in the South of Argentina and Chile. Information of tree nutrient partitioning is essential for evaluating the impacts of silvicultural practices on site productivity, mineral fertility and bioelement recycling. We determined nitrogen, phosphorous, potassium, calcium, sulphur and magnesium partition in plant organs (i.e. root, stem, foliage) by allometric relationships of nutrient partitioning among aerial and below ground N. antarctica components. We used information previously reported of nutrient contents of individual trees across different ages (5-220 years) and crown classes (dominant, codominant, intermediate and suppressed) growing on different site classes. Allometric regressions were fitted for nitrogen, phosphorus, potassium, calcium, sulphur and magnesium aerial-belowground, leaves-roots, stems-roots and leaves-stems. Slopes were compared by ANOVA to detect differences according to site classes. Allometric regression analyses for nutrient partitioning showed good fitness (R2 between 0.77 and 0.99) and allocation varied depending on each particular nutrient and site class. For example, in the best site class, magnesium was the most allocated to aerial components; meanwhile in the worst site the gradient calcium > nitrogen > magnesium > phosphorus = potassium = sulphur was found. Furthermore, all allometric relationships that included roots had lower slopes for worse site classes, indicating higher nutrient allocation to belowground components. Roots were an important sink for most nutrients, and its relative importance increased as site quality decreased. This characteristic to differently allocate resources according to site could be the explanation for the broad distribution of N. antarctica in Patagonia, from wet to drier sites. Fil: Gargaglione, Verónica. Instituto Nacional de Tecnologia Agropecuaria; Argentina. Universidad Nacional de la Patagonia Austral; Argentina Fil: Peri, Pablo Luis. Instituto Nacional de Tecnologia ... Article in Journal/Newspaper Antarc* Antarctica CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Argentina Austral Pablo ENVELOPE(-63.717,-63.717,-64.283,-64.283) Patagonia |
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Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
Spanish |
topic |
bosque andino patagónico ecología forestal alometria https://purl.org/becyt/ford/4.1 https://purl.org/becyt/ford/4 |
spellingShingle |
bosque andino patagónico ecología forestal alometria https://purl.org/becyt/ford/4.1 https://purl.org/becyt/ford/4 Gargaglione, Verónica Peri, Pablo Luis Rubio, Gerardo Partición de nutrientes en árboles de Nothofagus antárctica creciendo en un gradiente de calidades de sitio en Patagonia Sur. |
topic_facet |
bosque andino patagónico ecología forestal alometria https://purl.org/becyt/ford/4.1 https://purl.org/becyt/ford/4 |
description |
Nothofagus antarctica is a native species that grows in the South of Argentina and Chile. Information of tree nutrient partitioning is essential for evaluating the impacts of silvicultural practices on site productivity, mineral fertility and bioelement recycling. We determined nitrogen, phosphorous, potassium, calcium, sulphur and magnesium partition in plant organs (i.e. root, stem, foliage) by allometric relationships of nutrient partitioning among aerial and below ground N. antarctica components. We used information previously reported of nutrient contents of individual trees across different ages (5-220 years) and crown classes (dominant, codominant, intermediate and suppressed) growing on different site classes. Allometric regressions were fitted for nitrogen, phosphorus, potassium, calcium, sulphur and magnesium aerial-belowground, leaves-roots, stems-roots and leaves-stems. Slopes were compared by ANOVA to detect differences according to site classes. Allometric regression analyses for nutrient partitioning showed good fitness (R2 between 0.77 and 0.99) and allocation varied depending on each particular nutrient and site class. For example, in the best site class, magnesium was the most allocated to aerial components; meanwhile in the worst site the gradient calcium > nitrogen > magnesium > phosphorus = potassium = sulphur was found. Furthermore, all allometric relationships that included roots had lower slopes for worse site classes, indicating higher nutrient allocation to belowground components. Roots were an important sink for most nutrients, and its relative importance increased as site quality decreased. This characteristic to differently allocate resources according to site could be the explanation for the broad distribution of N. antarctica in Patagonia, from wet to drier sites. Fil: Gargaglione, Verónica. Instituto Nacional de Tecnologia Agropecuaria; Argentina. Universidad Nacional de la Patagonia Austral; Argentina Fil: Peri, Pablo Luis. Instituto Nacional de Tecnologia ... |
format |
Article in Journal/Newspaper |
author |
Gargaglione, Verónica Peri, Pablo Luis Rubio, Gerardo |
author_facet |
Gargaglione, Verónica Peri, Pablo Luis Rubio, Gerardo |
author_sort |
Gargaglione, Verónica |
title |
Partición de nutrientes en árboles de Nothofagus antárctica creciendo en un gradiente de calidades de sitio en Patagonia Sur. |
title_short |
Partición de nutrientes en árboles de Nothofagus antárctica creciendo en un gradiente de calidades de sitio en Patagonia Sur. |
title_full |
Partición de nutrientes en árboles de Nothofagus antárctica creciendo en un gradiente de calidades de sitio en Patagonia Sur. |
title_fullStr |
Partición de nutrientes en árboles de Nothofagus antárctica creciendo en un gradiente de calidades de sitio en Patagonia Sur. |
title_full_unstemmed |
Partición de nutrientes en árboles de Nothofagus antárctica creciendo en un gradiente de calidades de sitio en Patagonia Sur. |
title_sort |
partición de nutrientes en árboles de nothofagus antárctica creciendo en un gradiente de calidades de sitio en patagonia sur. |
publisher |
Univ Austral Chile |
url |
http://hdl.handle.net/11336/1399 |
long_lat |
ENVELOPE(-63.717,-63.717,-64.283,-64.283) |
geographic |
Argentina Austral Pablo Patagonia |
geographic_facet |
Argentina Austral Pablo Patagonia |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_relation |
info:eu-repo/semantics/altIdentifier/url/http://ri.conicet.gov.ar/admin/submit?handle=11336/1399 info:eu-repo/semantics/altIdentifier/url/http://www.redalyc.org/articulo.oa?id=173129280005 http://hdl.handle.net/11336/1399 Gargaglione, Verónica; Peri, Pablo Luis; Rubio, Gerardo; Partición de nutrientes en árboles de Nothofagus antárctica creciendo en un gradiente de calidades de sitio en Patagonia Sur.; Univ Austral Chile; Bosque (valdivia); 34; 11-2013; 291-302 0304-8799 0717-9200 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
_version_ |
1779309867394138112 |