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

dc.creatorMassaccesi, Guillermina
dc.creatorRoig, Fidel Alejandro
dc.creatorMartínez Pastur, Guillermo José
dc.creatorBarrera, Marcelo Daniel
dc.date2008-04
dc.date2022-02-24T17:23:55Z
dc.date.accessioned2023-07-15T04:40:25Z
dc.date.available2023-07-15T04:40:25Z
dc.identifierhttp://sedici.unlp.edu.ar/handle/10915/131650
dc.identifierissn:0931-1890
dc.identifierissn:1432-2285
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7470451
dc.descriptionThe 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.
dc.descriptionFacultad de Ciencias Agrarias y Forestales
dc.descriptionFacultad de Ciencias Naturales y Museo
dc.descriptionLaboratorio de Investigación de Sistemas Ecológicos y Ambientales
dc.formatapplication/pdf
dc.format245-255
dc.languageen
dc.rightshttp://creativecommons.org/licenses/by-nc-sa/4.0/
dc.rightsCreative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.subjectCiencias Naturales
dc.subjectCiencias Agrarias
dc.subjectSouthern Andes
dc.subjectTree-line
dc.subjectTree-ring analysis
dc.subjectGrowth cycles
dc.subjectNothofagus pumilio
dc.titleGrowth patterns of <i>Nothofagus pumilio</i> trees along altitudinal gradients in Tierra del Fuego, Argentina
dc.typeArticulo
dc.typeArticulo


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