IANIGLA   20881
INSTITUTO ARGENTINO DE NIVOLOGIA, GLACIOLOGIA Y CIENCIAS AMBIENTALES
Unidad Ejecutora - UE
capítulos de libros
Título:
Tree-Growth Variations of Nothofagus antarctica Related to Climate and Land Use Changes in Southern Patagonia, Argentina
Autor/es:
VETTESE. E.S.; PERI, P.L.; VILLALBA, R.; ORELLANA IBAÑEZ, I.A.
Libro:
Latin American Dendroecology
Editorial:
Springer-Nature
Referencias:
Año: 2020; p. 331 - 354
Resumen:
Isolated forest patches of Nothofagus antarctica (ñire) are frequent in the Patagonian forest-steppe ecotone. These remnants, also called relicts (R), are sepa-rate from the continuous forests (C). Over the past century, these ecotonal forests have been impacted by anthropogenic activities, including fires, logging, and cattle ranching. In order to identify in N. antarctica ring-width records the variations in tree growth associated with documented changes in land use, five sites were selected in Santa Cruz, Argentina. In each site, increment cores from R and C were collected. We developed individual chronologies, and the relationships between regional cli-mate variations and N. antarctica growth were established for each forest type and site. The similarities/differences between site-paired chronologies (R-C) were esti-mated by calculating moving correlation coefficients lagged by 1 year. N. antarctica regional growth was directly related to precipitation during the current growing season (November?December; r = 0.34, n = 62, p