@Article{SilvaSanGalSilMou:2016:FlStAm,
author = "Silva, Camila Val{\'e}ria de Jesus and Santos, Jo{\~a}o Roberto
dos and Galv{\~a}o, L{\^e}nio Soares and Silva, Ricardo
Dal'Agnol da and Moura, Yhasmim Mendes",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de
Pesquisas Espaciais (INPE)} and {Instituto Nacional de Pesquisas
Espaciais (INPE)} and {Instituto Nacional de Pesquisas Espaciais
(INPE)}",
title = "Floristic and structure of an Amazonian primary forest and a
chronosequence of secondary succession",
journal = "Acta Amazonica",
year = "2016",
volume = "46",
number = "2",
pages = "133--150",
month = "June",
keywords = "Forest recovery, vegetation dynamics, forest structure, floristic
patterns, biomass, Recupera{\c{c}}{\~a}o florestal,
din{\^a}mica da vegeta{\c{c}}{\~a}o, estrutura florestal,
padr{\~o}es flor{\'{\i}}sticos, biomassa.",
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 Tapaj{\'o}s 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. RESUMO: A an{\'a}lise de
mudan{\c{c}}as na composi{\c{c}}{\~a}o de esp{\'e}cies e
estrutura da vegeta{\c{c}}{\~a}o em cronosseq{\"u}{\^e}ncias
aprimora o conhecimento sobre os padr{\~o}es de
regenera{\c{c}}{\~a}o ap{\'o}s o abandono das terras na
Amaz{\^o}nia. Nosso objetivo foi realizar an{\'a}lise
flor{\'{\i}}stico-estrutural em florestas maduras (com / sem
explora{\c{c}}{\~a}o madeireira) e em sucess{\~o}es
secund{\'a}rias (inicial, intermedi{\'a}ria e avan{\c{c}}ada)
na regi{\~a}o do Tapaj{\'o}s. A idade da regenera{\c{c}}{\~a}o
e os locais das parcelas foram determinados usando imagens
Landsat-5 TM (1984-2012). Na an{\'a}lise flor{\'{\i}}stica, foi
determinada a sufici{\^e}ncia amostral e os {\'{\i}}ndices de
Shannon-Weaver (H'), uniformidade de Pielou (J), Valor de
Import{\^a}ncia (VI) e alfa de Fisher (\α). Foi aplicada
an{\'a}lise de escalonamento multidimensional
n{\~a}o-m{\'e}trico (NMDS) para ordena{\c{c}}{\~a}o de
similaridade. Na an{\'a}lise estrutural, o di{\^a}metro {\`a}
altura do peito (DAP), altura total da {\'a}rvore (Ht), {\'a}rea
basal (BA) e biomassa acima do solo (AGB) foram obtidos. As
diferen{\c{c}}as entre tipologias dos atributos
flor{\'{\i}}sticos-estruturais foram verificadas utilizando os
testes de Tukey e Kolmogorov-Smirnov. Os resultados mostraram
aumento dos {\'{\i}}ndices H', J e alfa a partir da
sucess{\~a}o inicial at{\'e} as florestas maduras da ordem de
47%, 33% e 91%, respectivamente. O est{\'a}gio avan{\c{c}}ado
apresentou mais esp{\'e}cies em comum com o est{\'a}gio
intermedi{\'a}rio do que com a floresta madura. Foram observadas
diferen{\c{c}}as estatisticamente significativas entre os
est{\'a}gios iniciais e intermedi{\'a}rios (p <0,05) para o DAP,
BA e Ht. O retorno dos estoques de carbono mostrou uma
varia{\c{c}}{\~a}o de AGB de 14,97 t ha-1 (est{\'a}gio inicial)
para 321,47 t ha-1(florestas maduras). Al{\'e}m de AGB, Ht
tamb{\'e}m foi um atributo importante para discriminar as
tipologias.",
doi = "10.1590/1809-4392201504341",
url = "http://dx.doi.org/10.1590/1809-4392201504341",
issn = "0044-5967",
language = "en",
targetfile = "silva_floristic.pdf",
urlaccessdate = "27 abr. 2024"
}