Growth patterns of <i>Nothofagus pumilio</i> trees along altitudinal gradients in Tierra del Fuego, Argentina

The influence of ecological factors resulting from altitude on growth characteristics of <i>Nothofagus pumilio</i> was analyzed. <i>N. pumilio</i> forests grow in the southern Andes from near sea level to 600 m.a.s.l. Eight study sites were selected in the southwestern area o...

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Detalles Bibliográficos
Autores principales: Massaccesi, Guillermina, Roig, Fidel Alejandro, Martínez Pastur, Guillermo José, Barrera, Marcelo Daniel
Formato: Articulo
Lenguaje:Inglés
Publicado: 2008
Materias:
Ciencias Naturales
Ciencias Agrarias
Southern Andes
Tree-line
Tree-ring analysis
Growth cycles
Nothofagus pumilio
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/131650
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-131650
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Ciencias Agrarias
Southern Andes
Tree-line
Tree-ring analysis
Growth cycles
Nothofagus pumilio
spellingShingle Ciencias Naturales
Ciencias Agrarias
Southern Andes
Tree-line
Tree-ring analysis
Growth cycles
Nothofagus pumilio
Massaccesi, Guillermina
Roig, Fidel Alejandro
Martínez Pastur, Guillermo José
Barrera, Marcelo Daniel
Growth patterns of <i>Nothofagus pumilio</i> trees along altitudinal gradients in Tierra del Fuego, Argentina
topic_facet Ciencias Naturales
Ciencias Agrarias
Southern Andes
Tree-line
Tree-ring analysis
Growth cycles
Nothofagus pumilio
description The influence of ecological factors resulting from altitude on growth characteristics of <i>Nothofagus pumilio</i> was analyzed. <i>N. pumilio</i> forests grow in the southern Andes from near sea level to 600 m.a.s.l. Eight study sites were selected in the southwestern area of Tierra del Fuego, on north- and south-facing slopes, and distributed along an altitudinal gradient (200–600 m.a.s.l.). Growth cycles throughout time were identified. The correlation between climate and tree growth was determined. Tree diameter and height decreased whereas stand density increased towards tree-line. South-facing slopes showed higher values in common growth variability, probably because of stronger climatic controlling factors. Climate-growth correlation models revealed long-term temperature influences on growth variability, and showed variations among the different plots. Differences were detected in the spectral power component of the chronologies throughout the altitudinal profile. The series had a significant spectral peak at frequencies around 7 years, possibly related to mast seeding cycles. This signal became weaker as the altitude increased probably due to lower seed production. These results suggest a strong altitudinal component in growth variability of <i>N. pumilio</i> in Tierra del Fuego.
format Articulo
Articulo
author Massaccesi, Guillermina
Roig, Fidel Alejandro
Martínez Pastur, Guillermo José
Barrera, Marcelo Daniel
author_facet Massaccesi, Guillermina
Roig, Fidel Alejandro
Martínez Pastur, Guillermo José
Barrera, Marcelo Daniel
author_sort Massaccesi, Guillermina
title Growth patterns of <i>Nothofagus pumilio</i> trees along altitudinal gradients in Tierra del Fuego, Argentina
title_short Growth patterns of <i>Nothofagus pumilio</i> trees along altitudinal gradients in Tierra del Fuego, Argentina
title_full Growth patterns of <i>Nothofagus pumilio</i> trees along altitudinal gradients in Tierra del Fuego, Argentina
title_fullStr Growth patterns of <i>Nothofagus pumilio</i> trees along altitudinal gradients in Tierra del Fuego, Argentina
title_full_unstemmed Growth patterns of <i>Nothofagus pumilio</i> trees along altitudinal gradients in Tierra del Fuego, Argentina
title_sort growth patterns of <i>nothofagus pumilio</i> trees along altitudinal gradients in tierra del fuego, argentina
publishDate 2008
url http://sedici.unlp.edu.ar/handle/10915/131650
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