RELAÇÃO DA MORFOMETRIA E COMPETIÇÃO COM O CRESCIMENTO DE Trichilia claussenii EM UM FRAGMENTO DE FLORESTA SEMIDECIDUAL, RS
Author(s) -
Bruna Denardin da Silveira,
Eduardo Pagel Floriano,
Nelson Yoshihiro Nakajima,
Roberto Tuyoshi Hosokawa,
Nelson Carlos Rosot,
Cibele Rosa Gracioli
Publication year - 2014
Publication title -
floresta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.386
H-Index - 13
eISSN - 1982-4688
pISSN - 0015-3826
DOI - 10.5380/rf.v45i2.35164
Subject(s) - biology , forestry , mathematics , geography
Este trabalho teve como objetivos determinar a relacao de variaveis morfometricas e de indices de competicao com o crescimento em diâmetro de Trichilia claussenii , em um fragmento da Floresta Estacional Semidecidual na regiao central do Rio Grande do Sul. Os dados utilizados neste estudo foram obtidos de 29 arvores amostradas por classe diametrica, denominadas arvores centrais , com diâmetro a altura do peito (d) igual ou superior a 10,0 centimetros, distribuidas em 51 parcelas permanentes, totalizando 0,51 hectares. Cada arvore central teve as seguintes variaveis mensuradas: altura total e altura comercial do fuste, diâmetro a altura do peito, diâmetro da copa e comprimento de copa. Posteriormente, calcularam-se alguns parâmetros morfometricos, assim como alguns indices de competicao dependentes e independentes da distância. A analise de correlacao de Pearson e analise de regressao foram utilizadas para verificar a relacao entre as variaveis morfometricas, os indices de competicao e o incremento em diâmetro. Concluiu-se que existe associacao entre o incremento em diâmetro de Trichilia claussenii e a competicao, sendo que o crescimento em diâmetro possui maior relacao com o indice Bal de competicao. Palavras-chave : Catigua; floresta nativa; biometria florestal. Abstract Relationship of morphometry and competition with growth of Trichilia claussenii in fragment of Semidecidual Forest, RS. This study aimed to determine the relationship of morphometric variables and indices of competition with the growth in diameter of Trichilia claussenii , in a fragment of semideciduous forest in the central region of Rio Grande do Sul. The data used in this study were obtained from 29 sampled trees by diameter class, called central trees with diameter at breast height (d) not less than 10.0 cm, from 51 permanent plots, totaling 0.51 ha. Each central tree had measured the following variables: total height and commercial height, stem diameter at breast height, crown diameter and crown length. Subsequently, it was calculated some morphometric parameters, as well as some competition indexes dependent and independent of distance. The Pearson correlation analysis and regression analysis were used to verify the relationship between the morphometric variables, competition indexes and diameter increment. It was concluded that there is an association between the increase in diameter of Trichilia claussenii and competition, where the growth in diameter has a greater relationship with Bal index of competition. Keywords: Catigua; native forest; forest biometrics.
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