Growth acceleration of subtropical tree species through 90 years in an Araucaria Forest

• Autor(a) principal: Mattos, Patrícia Póvoa de
• Data de Publicação: 2010
• Outros Autores: Oliveira, Mariana Ferraz, Agustini, Andrea Fernanda, Braz, Evaldo Muñoz, Rivera, Hugo, Oliveira, Yeda Maria Malheiros de, Rosot, Maria Augusta Doetzer, Garrastazu, Marilice Cordeiro
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Pesquisa Florestal Brasileira (Online)
• Texto Completo: https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/102
• topic: Dendrochronology; diametric growth; native Forest; Araucaria angustifolia; Dendrocronologia; crescimento diamétrico; floresta nativa; Araucaria angustifolia

Araucaria Forest is considered one of the most important forest formations of Atlantic Forest Biome. Regarding its importance, there is a lack of information  about growth dynamics of its forest species. The present study aimed at to estimate the past growth of selected tree species of Araucaria Forest. Dendrochronological analysis was carried out on non-destructive samples of Araucaria angustifolia, Ocotea porosa, Ilex paraguariensis, Cedrela fissilis, Ocotea puberula and Ocotea pulchella. The average periodic diameter increment until 2006 was approximately 0.5 cm year-1, for A. angustifolia, C. fissilis, O. porosa and O. pulchella. O. puberula and I. paraguariensis presented average periodic diameter increment until 2006 of 0.9 cm year-1 or greater. The  growth rhythm has accelerated since the first decades of last century. It is suggested that this different growth pattern is a consequence of climatic changes throughout the growing period.doi: 10.4336/2010.pfb.30.64.319