Data/hora: 14/06/2024 01:24:46

Biblioteca(s): | Embrapa Florestas.
Data corrente: | 30/04/2018
Data da última atualização: | 07/05/2018
Autoria: | FONTANA, C.; PÉREZ-DE-LIS, G.; NABAIS, C.; LOUSADA, J. L. P. C.; OLMEDO, G. M.; BOTOSSO, P. C.; OLIVEIRA, J. M.
Afiliação: | Cláudia Fontana, UNISINOS; Gonzalo Pérez-de-Lis, Université de Lorraine; Cristina Nabais, Coimbra University; José Luís Penetra Cerveira Lousada, University Trás-os-Montes e Alto Douro/CITAB; Gabriela Morais Olmedo, UNISINOS; PAULO CESAR BOTOSSO, CNPF; Juliano Morales Oliveira, UNISINOS.
Título: | Climatic signal in growth-rings of Copaifera lucens: an endemic species of a Brazilian Atlantic forest hotspot, southeastern Brazil.
Ano de publicação: | 2018
Fonte/Imprenta: | Dendrochronologia, v. 50, p. 23-32, Aug. 2018.
DOI: | 10.1016/j.dendro.2018.04.004
Idioma: | Inglês
Conteúdo: | In this study, we present the first tree-ring chronology for the tropical tree species Copaifera lucens and its climatic signal in southeastern Brazil. Tree-ring width series were compared with local climate indices using a drought index (Standardized Precipitation Evapotranspiration Index ?SPEI), in monthly, bi-monthly and four-monthly scales. We also calculated negative pointer years over the time-span of the tree-ring width. The radial growth of C. lucens showed a positive correlation with the SPEI of the current summer and autumn in all the three analyzed time scales, while the negative pointer years matched with drier years. The species was highly sensitive to very low summer precipitation, which may lead to a 49% reduction in growth. We conclude that the long-living C. lucens has a great potential for dendrochronological studies as it shows a marked climatic signal. Our study also reinforces the importance of rainfall in regulating radial growth in tropical forests and sheds light on the local climate influence on tree growth in recent decades.
Palavras-Chave: | Aneis de crescimento; Climate-Growth relationship; Dendrocronologia; Tree rings.
Thesagro: | Espécie nativa; Floresta tropical.
Thesaurus Nal: | Dendrochronology; Growth rings; Tropical forests.
Categoria do assunto: | K Ciência Florestal e Produtos de Origem Vegetal
Registro original: | Embrapa Florestas (CNPF)
Exemplares: | CNPF - (56339-1) - UPC - AP - DD -  -  -  - DIS