DENDROECOLOGICAL ANALYSIS OF Ocotea pulchella Nees et Mart. ex Nees (CANELA LAGEANA) IN THE SERRA GERAL OF SANTA MARIA, RS, BRAZIL
DOI:
https://doi.org/10.5902/19805098398Keywords:
Dendroecology, stem analysis, evapotranspiration, Ocotea pulchella.Abstract
The relationship between climatic variables and stem diameter increment of five Ocotea pulchella trees was studied on a water-influenced site in Itaára, RS. Growth data was obtained by stem analysis. On the stem disks taken at breast height diameter (1.3 m), radial increment was measured on four perpendicular radii. The mean growth sequences were standardized to highlighten short-term variation. Climatic data is originated from the meteorological station of Santa Maria, RS. Compound climatic quantities like evapotranspiration and water balance were calculated for better describing hydric conditions of tree growth. Pointer years and sensitivities of growth sequencies were calculated. Possible liberation of trees and its effect on radial growth was studied. Variation of increment and climatic variation was compared by using correlation analysis. No climatic pattern could be found which coherently influenced diameter increment during the observation period. However, excess of water seems to influence the variation of diameter increment on the studied site.
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BRASIL. Ministério de Agricultura. Departamento Nacional de Pesquisa Agropecuária. Divisão de Pesquisa Pedológica. Levantamento de reconhecimento dos solos do Estado do Rio Grande do Sul. Recife, 1973. 430 p. (Boletim Técnico n. 30).
DEVALL, M.S.; PARRESOL, B.R.; ARMESTO, J..J. Dendroecological analysis of a Fitzroya cupressoides and a Nothofagus nitida stand in the Cordillera Pelada, Chile. Forest Ecology and Management n. 108, p. 135-145, 1998.
INOUE, M.T.; RODERJAN, C.V.; KUNIYOSHI, Y.S. Projeto madeira do Paraná. Curitiba: Fundação de Pesquisas Florestais do Paraná, 1984. 260 p.
KLEIN, R.M. Síntese ecológica da floresta estacional da bacia do rio Jacuí e importância do reflorestamento com essências nativas (RS). In: CONGRESSO FLORESTAL ESTADUAL, 5., 1984, Nova Prata. Anais ... Nova Prata, 1984. p. 265-278.
MORENO, J.A. Clima do Rio Grande do Sul. Porto Alegre: Secretaria da Agricultura, RS, 1961.
p.
REITZ, R.; KLEIN, R.M.; REIS, A. Projeto Madeira do Rio Grande do Sul. Porto Alegre: CORAG, 1988. 525 p.
RIZZINI, C.T. Árvores e madeiras úteis do Brasil: manual de dendrologia brasileira. São Paulo: Edgard Blücher, 1971. 294 p.
SCHWEINGRUBER, F.H. Der Jahrring: standort, methodik, zeit und klima in der dendrochronologie. Bern: Verlag Paul Haupt. 1983. 234 p.
THORNTHWAITE, C.W., MATHER, J.R. Instructions and tables for computing potential evapotranspiration and the water balance. Centeron, NewJersey: Drexel Institute of Technology, 1957. 308p. (Laboratory of Climatology 10, n. 3).
