Estrutura de fragmentos florestais urbanos de Manaus-Am: implicações para seu manejo e conservação
It was analyzed ten forest fragments of Manaus city about its structure in the urban space. It was investigated about forest composition of fragments, estimations of horizontal structure parameters and dendometric parameters (basal area, biomass above the ground and carbon storage) of arboreal pla...
| Autor principal: | Serafini, Rodrigo Tacioli |
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| Grau: | Dissertação |
| Idioma: | por |
| Publicado em: |
Instituto Nacional de Pesquisas da Amazônia - INPA
2020
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| Assuntos: | |
| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/5006 http://lattes.cnpq.br/5997743948494112 |
| Resumo: |
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It was analyzed ten forest fragments of Manaus city about its structure in the urban space. It was
investigated about forest composition of fragments, estimations of horizontal structure parameters and
dendometric parameters (basal area, biomass above the ground and carbon storage) of arboreal plants with
DBH > 10cm, plus the perturbation history and management. It was account 3609 plants with DBH >
10cm, been recorded 256 species, 51 botanic families at 12 ha sampled (48 plots with 0.25ha). The
Shannon index (H’) calculated with 10 fragments was 4.53. The fragment named SESC (13ha) showed the
largest number of expected species (S) by the rarefaction curve, followed by AEROPORTO fragment (540
ha), CASTANHEIRAS (10ha), UFAM (600ha) and PARQUE DO MINDU (29ha). The VILAR
CAMARA fragment (48ha), CAMPOS ELISIOS (18ha), SAUIM (98 ha), NUCLEO 23 (35ha) and SESI
(52ha) showed the lowest number of expected species. The fragments structure it was analogous to their
perturbation history and management, reveled different stages of forest regeneration. The fragments were
classified like remnant native vegetation of Manaus because the similarity with Uper-Land Forest from the
Amazon region about the forest composition and the estimations of horizontal structure parameters. The
Arecaceae, Euphorbiaceae and Mimosaceae families were the most important ones. Demonstrated that is
important the management of small fragments (less than 100ha), for to show expressive values of
exclusive species richness species and botanic families in relation the largest fragments (more than
100ha). There was similarity about forest composition between the UFAM and AEROPORTO fragments
and between PARQUE DO MINDU and VILLAR CAMARA. The estimation of number of individual for
hectare, basal area, fresh phytomass above the ground and carbon, been 30 plots in each fragment sampled
(IC 95%) were 291 ± 35.92 individual/ha, 10.81 ± 1.42 m²/ha, 196.26 ± 27.87 ton/ha e 58.88 ± 8.36
ton/ha. The SAUIM, VILLAR CÂMARA and PARQUE DO MINDU fragments showed the biggest
number of plants for ha (385, 368 e 345, in order) and AEROPORTO, PARQUE DO MINDU, VILLAR
CÂMARA and UFAM fragments the biggest estimation of basal area (14.45; 14.29; 12.73 e 12.27 m²/ha,
in order) been that the lowest one were NÚCLEO 23, SESI and SAUIM (5.82; 7.87 e 8.74 m²/ha). It clear
that is important to know about fragments history and to manage these areas to guarantee their
conservation and the good environment condition for the Manaus city. |