Affiliation:
1. Universidade do Vale do Paraíba, Brasil
Abstract
ABSTRACT Samples of Araucaria angustifolia were collected at Fazenda Rio Grande, Paraná, Brazil (25°39'S 49 18'O) in January 2011. The 32 samples from 8 trees were subjected to treatments following dendrochronological techniques. The cores were measured and dated using optical and computational methodology, and then standardized to obtain a growth-ring time series, which considers the 1907-2009 time range and represents Fazenda Rio Grande. Tree-ring indices were analyzed and correlated to temperature and precipitation averages from the 1961-2009 range. This procedure aimed to study and understand the influence of the local climate on the plant growth and if this influence can be quantified. A. angustifolia trees produce visible annual growth rings, and their earlywood and latewood are clearly defined. The present study shows that A. angustifolia is sensitive to climate variables (e.g., low temperatures in wintertime tend to stop the growth rate). The correlation between tree rings and monthly precipitation series showed a common trend, making it possible to estimate the seasonal rainfall behavior for the entire 1907-2009 range.
Reference31 articles.
1. Sinais climáticos em anéis de crescimento de Cedrela fissilis em diferentes tipologias de florestas ombrófilas do Sul do Brasil;ANDREACCI F.;Floresta,2014
2. El Nino and related monsoon drought signals in 523-years-long ring width records of Teak (Tectona grandis L.F.) trees from south India;BORGAONKAR H.P.;Palaeogeography, Palaeoclimatology, Palaeoecology,2010
3. Conhecer a idade das árvores: importância e aplicação;BOTOSSO C.P.,2002
4. Contribuição ao estudo do balanço hídrico no estado do Paraná: Uma proposta de classificação qualitativa;CARVALHO S.M.;Geografia,2004
5. Dendrocronologia: Método matemático para determinação da idade das árvores;COELHO J.V.,2011
Cited by
9 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献