Floristic and phytosociology in dense “terra firme” rainforest in the Belo Monte Hydroelectric Plant influence area, Pará, Brazil

Brazilian Journal of Biology

Dan. Lemos¹  Bga. Ferreira¹  Jdp. Siqueira¹  Mm. Oliveira¹  Am. Ferreira¹ 

关键词: floristic survey;    diversity;    amazon species;    rain forest;    Palavra-chave: levantamento florístico;    diversidade;    espécies amazônicas;    floresta tropical;   

DOI  :  10.1590/1519-6984.01814BM

来源: SciELO

【 摘 要 】

Abstract The objective of the present study was to characterise the floristic and phytosociological composition on a stretch of dense “Terra Firme” rainforest located in the Belo Monte hydroelectric plant area of influence, located in the state of Pará, Brazil. All trees with DAP >10 cm situated in 75 permanent plots of 1 ha were inventoried. 27,126 individuals trees (361 ind.ha-1), distributed in 59 botanical families, comprising 481 species were observed. The families with the largest number of species were Fabaceae (94), Araceae (65) and Arecaceae (43), comprising 43.7% of total species. The species Alexa grandiflora (4.41), Cenostigma tocantinum (2.50) and Bertholletia excelsa (2.28) showed the highest importance values (IV). The ten species with greater IV are concentrated (22%). The forest community has high species richness and can be classified as diverse age trees, heterogeneous and of medium conservation condition.

【 授权许可】

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