Estrutura populacional e brotamento de três espécies nativas do cerrado em diferentes regimes de queimadas
Carregando...
Data
2014-09-18
Título da Revista
ISSN da Revista
Título de Volume
Editor
Vera Lúcia Gomes-Klein
Resumo
The present study evaluated the influence of different fire regimes on the population structure
and number of sprouts of two tree species: Roupala montana and Stryphnodendron adstringens and a
shrubby: Rourea induta. The study was conducted at the Ecological Reserve of IBGE, Brasília, DF, Brazil,
in areas of cerrado sensu stricto: protected from fire, burned with biennial and quadrennial burnt. Five
plots of 20 x 50 m in each area (plants with ≥ 5 cm diameter) and a subplot of 10 x 10 m within each
plot (diameter <5 cm) were demarcated. Population structure of plants and the density and diameter
of sprouts was evaluated. The spatial distribution was different between the shrub and tree species, but
the fire did not affect their distribution. The quadrennial and protected areas had higher plant density
and regrowth for the tree species, while the biennial area showed higher plant density and regrowth for
the shrub species. In biennial area height and diameter of the three species were lower. Thus, in areas
subjected to frequent burning tree species have decreased their populations, whereas the shrubby has
colonized the environment through budding.
Descrição
v.11, n. 2, p.107-115, jul./dez. 2014.
Palavras-chave
Densidade de planta, Distribuição espacial, Rebrota, Regimes de fogo, Fire regimes, Plant sprout, Plant density, Spatial distribution
Citação
DINIZ, Vania Sardinha dos Santos; FRANCESCHINELLI , Edivani Villaron. Estrutura populacional e brotamento de três espécies nativas do cerrado em diferentes regimes de queimadas. Revista Biologia Neotropical, Goiânia, v.11, n.2, p. 107-115, jul./dez. 2014. Disponível:< http://www.revistas.ufg.br/index.php/RBN/article/view/29488/18139>.