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Floristic and structure of an Amazonian primary forest and a chronosequence of secondary succession

Camila Valéria de Jesus SILVA et al · Instituto Nacional de Pesquisas da Amazônia · 2016

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"Pinta" em população nativa do Estado do Amazonas

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ABSTRACT The analysis of changes in species composition and vegetation structure in chronosequences improves knowledge on the regeneration patterns following land abandonment in the Amazon. Here, the objective was to perform floristic-structural analysis in mature forests (with/without timber exploitation) and secondary successions (initial, intermediate and advanced vegetation regrowth) in the Tapajós region. The regrowth age and plot locations were determined using Landsat-5/Thematic Mapper images (1984-2012). For floristic analysis, we determined the sample sufficiency and the Shannon-Weaver (H'), Pielou evenness (J), Value of Importance (VI) and Fisher's alpha (α) indices. We applied the Non-metric Multidimensional Scaling (NMDS) for similarity ordination. For structural analysis, the diameter at the breast height (DBH), total tree height (Ht), basal area (BA) and the aboveground biomass (AGB) were obtained. We inspected the differences in floristic-structural attributes using Tukey and Kolmogorov-Smirnov tests. The results showed an increase in the H', J and α indices from initial regrowth to mature forests of the order of 47%, 33% and 91%, respectively. The advanced regrowth had more species in common with the intermediate stage than with the mature forest. Statistically significant differences between initial and intermediate stages (p<0.05) were observed for DBH, BA and Ht. The recovery of carbon stocks showed an AGB variation from 14.97 t ha-1 (initial regrowth) to 321.47 t ha-1 (mature forests). In addition to AGB, Ht was also important to discriminate the typologies.

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APA 7

al, C. V. D. J. S. E. (2016). Floristic and structure of an Amazonian primary forest and a chronosequence of secondary succession. https://doi.org/10.1590/1809-4392201504341

MLA

al, Camila Valéria de Jesus SILVA et. "Floristic and structure of an Amazonian primary forest and a chronosequence of secondary succession." 2016. https://doi.org/10.1590/1809-4392201504341.

Chicago

al, Camila Valéria de Jesus SILVA et. 2016. "Floristic and structure of an Amazonian primary forest and a chronosequence of secondary succession.". https://doi.org/10.1590/1809-4392201504341.

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al, C. V. D. J. S. E. 2016, Floristic and structure of an Amazonian primary forest and a chronosequence of secondary succession, Instituto Nacional de Pesquisas da Amazônia, available at: https://doi.org/10.1590/1809-4392201504341 [Accessed 5 Aug. 2026].

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Title
Floristic and structure of an Amazonian primary forest and a chronosequence of secondary succession
Author / contributors
Camila Valéria de Jesus SILVA et al
Publisher
Instituto Nacional de Pesquisas da Amazônia
Publication year
2016
ISSN
0044-5967
ISSN
0044-5967
Language
English

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