SciELO - Scientific Electronic Library Online

 
vol.3 número12Canales de comercialización de la corteza de cuachalalate (Amphipterigium adstringens Schiede ex Schlecht.) en MéxicoContexto socioeconómico del conocimiento micológico tradicional en la Sierra Nevada, México índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

  • Não possue artigos similaresSimilares em SciELO

Compartilhar


Revista mexicana de ciencias forestales

versão impressa ISSN 2007-1132

Resumo

LOPEZ-TOLEDO, José Francisco; VALDEZ-HERNANDEZ, Juan Ignacio; PEREZ-FARRERA, Miguel Ángel  e  CETINA-ALCALA, Víctor Manuel. Tree composition and structure of a seasonally dry tropical forest at la sepultura biosphere reserve, Chiapas. Rev. mex. de cienc. forestales [online]. 2012, vol.3, n.12, pp.43-56. ISSN 2007-1132.

The structure and composition of tree vegetation were studied in three environmental conditions (CA): Stream, Ravine, and Hill. Three sampling units (UM) of 20 x 30 m each were established per EC, in which diameter at breast height (DBH), total height and canopy diameters were measured in poles (DBH ≥ 2.5 cm). In thickets (DBH < 2.5 cm, height ≥ 1.3 m) and saplings (height < 1.3 m), height was measured. Several indices were calculated: importance value (IVI), forestry value (FVI), species diversity (Shannon: H'), and floristic similarity (Sorensen: So). A total of 83 tree species were found. For poles, the most important species were Lonchocarpus minimiflorus (FVI = 25.9; IVI = 16.8) in Stream, Adenaria floribunda (FVI = 17.3; IVI = 14.7) in Ravine, and Guazuma ulmifolia (FVI = 27.6; IVI = 18.5) in Hill. For thickets, Piper sp. (IVI = 29.1) in Stream, Eugenia capulli (IVI = 14.9) in Ravine, y Cassia sp. (IVI = 20.6) in Hill. For saplings, L. minimiflorus (IVI = 27.1) in Stream, and Cassia sp. (IVI = 15.3) in Ravine, and Lantana achyranthifolia (IVI = 26.8) in Hill. Species diversity was significantly higher (p<0.05) in the SU of Stream (H' = 2.21-2.92) and Ravine (H' = 2.37-2.98) than in those of Hill (H' = 0.92-2.44). Floristic similarity was higher among the SU of Ravine (So = 0.46-0.71) and lower among those of Stream (So = 0.33-0.39). The structural attributes and floristic composition suggest that Stream and Ravine have mature forests, while Hill shows an early secondary forest.

Palavras-chave : Seasonal dry tropical forest; species diversity; importance value index; forestry value index; floristic similarity; Sierra Madre de Chiapas.

        · resumo em Espanhol     · texto em Espanhol

 

Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons