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