IANIGLA   20881
INSTITUTO ARGENTINO DE NIVOLOGIA, GLACIOLOGIA Y CIENCIAS AMBIENTALES
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Growth rings in tropical trees from the Bolivian Cerrado phytogeographical province: Applications to forest management
Autor/es:
LIDIO LOPEZ AND RICARDO VILLALBA
Lugar:
Tucson, Arizona
Reunión:
Congreso; Second American Dendrochronology Conference; 2013
Institución organizadora:
University of Arizona
Resumen:
This study describes the most prominent anatomical features associated with the presence of annual growth bands in eight species from the tropical Bolivian Cerrado forest: Amburana cearensis, Cedrela fissilis, Platimiscium ulei, Centrolobium microchaete, Hymenaea courbaril, Anadenanthera colubrina and Ficus boliviana. In six from the eight species, marginal parenchyma is the most common pattern delimiting annual growth bands. Growth lenses and false rings were recorded in some species.  Based on these observations, the determination of the growth rings along two opposite radii in each cross-section allowed achieving a reliable representation of the radial growth of selected species. Dendrochronological methods were effective to estimate the age of the trees and their growth rates, expanding the use of tree-ring methods to tropical dry forests in South America. The information resulting from the application of dendrochronological methods in the dry forests of the Cerrado is crucial for the definition of precise management practices in tropical regions
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