Estrutura fitossociológica da vegetação arbórea do Parque Natural Municipal de Santo Ângelo, Santo Ângelo, RS

Ciencia Florestal

Alexandre Hüller¹ 

[1] UFSM

关键词: componente arbóreo;    diversidade florística;    Floresta Estacional Decidual;   

DOI  :  10.5902/198050984508

学科分类：农业科学（综合）

来源: Universidade Federal de Santa Maria * Centro de Pesquisas Florestais

【 摘 要 】

The present work was performed in the Natural Municipal Park of Santo Ângelo (RS) owned by the City Government of Santo Ângelo, the objective was to evaluate the floristic composition and the phytosociological structure of the forest, in an area with 13 hectares. Twelve units samples of size 10 x 20 m systematically distributed in the area were used , in which these unit samples were measured and identified all individuals with DAP greater than or equal to 10 cm. The results were analyzed and processed with the use of the software FITOANÁLISE, calculating the phytosociological parameters of density, dominance, frequency, value of importance, value of coverage, diversity Shannon H’ indexand Morisita index. 35 species were found, belonging to 30 genera and 21 families, of which ( Sebastiania commersoniana(Baill.) L. B. Sm. & Downs), açoita-cavalo ( Luhea divaricataMart), maria- preta ( Diatenopterix sorbifoliaRadlk) e canela preta ( Nectandra megapotamicaSpreng.) were the ones with greater in phyto-sociological parameters from the tree components of forest.  The species with the greatest value of importance (VI) were açoita-cavalo ( Luhea divaricataMart) with 50,53; branquilho ( Sebastiania commersonianaBaill.) with 46,24; maria-preta ( Diatenopterix sorbifoliaRadlk) with 26,93, canela preta ( Nectandra megapotamicaSpreng.) with 20 and farinha-seca ( Machaerium stipitatumVogel) with 16,64. The forest vertical structureLuhea divaricatashowed higher values in the upper stratum andSebastiania commersonianaBaill in middle and lower strata.

【 授权许可】

CC BY-NC